Seacliff Park

Suburb (SAL)

Greater Adelaide / Marion

 
 
 
 
 
 
 
Data Sources ABSValuer GeneralRental BoardACARA Newest Aug 2026 · Refreshed ABS QuickStats SAL41312 How we calculate this
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Suburb (SAL) Boundary Analysis

This analysis uses Suburbs and Localities (SAL) boundaries, which can materially differ from Statistical Areas (SA2) even when sharing the same name.

SAL boundaries are defined by Australia Post and the Australian Bureau of Statistics to represent commonly-known suburb names used in postal addresses.

Statistical Areas (SA2) are designed for census data collection and may combine multiple suburbs or use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.

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Sales ActivityProperty Sales Trends in Seacliff Park

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DemographicsPopulation Growth in Seacliff Park

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Seacliff Park has an estimated 2,700 residents, up from 2,644 at the 2021 Census — a change of 56 people, or 2.1%. That puts 1,179 residents on each square kilometre. Population is estimated from ABS Estimated Resident Population releases and GNAF address data, re-based from the 2021 Census and updated annually.

Detail

Analyzing population updates from the ABS for the surrounding region alongside newly validated addresses recorded by AreaSearch since the Census, the suburb of Seacliff Park has an estimated population of approximately 2,700 as of May 2026. This represents a growth of 56 individuals (2.1%) from the 2,644 residents documented in the 2021 Census. This adjustment is derived from a resident count of 2,697, calculated by AreaSearch using the ABS June 2025 release of ERP data combined with 29 validated new addresses confirmed since the Census. This count translates to a density of 1,179 persons per square kilometer, a level that matches typical benchmarks observed in AreaSearch assessments.

Growth in the local population was primarily supported by international migration, which accounted for roughly 65.0% of the overall gains in recent times. Projections developed by the ABS and Geoscience Australia for each SA2 region, published in 2024 using 2022 as the baseline, are utilized by AreaSearch. For SA2 territories excluded from that release, or for timeframes beyond 2032, regional and LGA projections by age bracket from the SA State Government (published in 2023 using 2021 data) are applied, modified through a weighted aggregation of population expansion from LGA to SA2 scales. Looking at future patterns, the suburb of Seacliff Park is projected to experience growth slightly below the median of national statistical areas, with a projected rise of 197 individuals by 2041 across the combined SA2 models, showing an overall expansion of 7.2% over the 16 years.

Frequently Asked Questions - Population

What is the latest population estimate for the suburb of Seacliff Park?
Total population for the suburb of Seacliff Park was estimated to be approximately 2,700 as at May 26. This is based upon an estimated resident population of 2,697 from the ABS up to June 2025.
How has the population in the suburb of Seacliff Park changed since 2021?
The suburb of seacliff park has added approximately 56 people and shown a 2.12% increase from the 2,644 people recorded at the 2021 Census period.
What is the population density in the suburb of Seacliff Park?
The population density in the suburb of Seacliff Park is estimated at 1,179 persons per square kilometer based on the latest population estimate.
How much has the population grown over the past 10 years in the suburb of Seacliff Park?
Over the past 10 years, the population in the suburb of Seacliff Park has shown a compound annual growth rate of 0.9% per annum.
What are the main drivers of population growth in the suburb of Seacliff Park?
Population growth in the suburb of Seacliff Park is driven by: Overseas migration (65.0%), Natural increase (35.0%), Interstate migration (0.0%). The primary driver is Overseas migration, contributing 65.0% of overall population gains.

Residential SupplyHousing Development & Building Approvals in Seacliff Park

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97 new dwellings have been approved in Seacliff Park over the past five years, an average of 19 a year. That is 7.3 approvals per 1,000 residents. Of the 24 dwellings approved in the latest reporting year, 83% were detached houses and the rest townhouses or apartments. Approvals are currently running at an annualised 8, well below that longer-run average. Figures come from ABS building approvals aggregated to this Suburb (SAL) boundary and are updated monthly as the ABS releases them.

Detail

Evaluations of ABS building approvals compiled from local statistical divisions indicate that Seacliff Park has maintained an average of approximately 19 new home approvals annually. This includes an estimated 97 residential approvals over the previous 5 financial years (running from FY-21 to FY-25) and 8 during the current FY-26. With an average of only 0.6 additional residents per constructed home over those 5 financial years (from FY-21 to FY-25), the incoming volume is keeping pace with or outstripping demand, providing buyers with diverse options and establishing room for demographic expansion beyond current projections.

These new residences carry an average construction value of $475,000, indicating that builders are targeting the higher-end sector with premium properties. Furthermore, commercial approvals have reached $14.6 million during the current financial year, showing a moderate level of business development. When compared to Greater Adelaide, building activity per capita in Seacliff Park is matching pace, sustaining a balanced market consistent with neighboring localities. The composition of new builds is 83.0% standalone residences and 17.0% medium to high-density options, maintaining the suburban profile of the neighborhood via single-family detached houses that appeal to buyers looking for larger lots. Registering around 149 individuals for every approved residential build, Seacliff Park displays the hallmarks of a low-density community. Looking forward, projections suggest the suburb of Seacliff Park will add 194 residents by 2041, starting from the most recent quarterly calculation by AreaSearch. Based on current construction trends, upcoming residential supply is set to comfortably satisfy demand, establishing favorable purchasing environments and potentially unlocking population gains that exceed current expectations.

Frequently Asked Questions - Development

How many dwelling approvals have occurred in the suburb of Seacliff Park recently?
Dwelling approval activity in the the suburb of Seacliff Park area has seen 36 residential approvals over the past two financial years, based on AreaSearch's SA2 aggregation method. The suburb of Seacliff Park's current population of 2,700 has been supported by 19 approvals on average over recent years.
How does the suburb of Seacliff Park's development activity compare to the broader region?
The suburb of Seacliff Park has seen 0.73 approvals per 100 people in recent years, compared to 0.74 approvals in the broader region. This means that one dwelling has been approved for every 149 people in the suburb of Seacliff Park, compared to one for every 144 in the broader region.
Is the suburb of Seacliff Park keeping up with housing demand?
With the population expected to increase by 194 people by 2041, around 97 new dwellings will be necessary. Recent approval levels appear more than sufficient to meet these forecasts, considering the census average of 2.0 persons per dwelling. This suggests that population growth may exceed trend projections in the coming years, supported by a robust housing supply.
What has been the trend in development approvals over the past five years in the suburb of Seacliff Park?
Looking at development activity over the past five years, the suburb of Seacliff Park's approval levels have been significantly below the yearly average of 19, showing a notable downturn in recent development.
How many dwellings will be needed to accommodate future population growth in the suburb of Seacliff Park?
The population in the suburb of Seacliff Park is expected to grow by 194 people by 2041, necessitating approximately 97 new dwellings. This calculation is based on the current census average of 2.0 persons per dwelling in the area.
How does recent development compare to population growth in the suburb of Seacliff Park?
Over the past five years, the population in the suburb of Seacliff Park has grown by approximately 596 people, while 97 residential approvals were recorded. This equates to a ratio of 6.1 people added for each new dwelling approval. This high ratio suggests strong population growth relative to housing supply, potentially indicating unmet housing demand.
Are there opportunities for residential developers in the suburb of Seacliff Park?
With dwelling approval activity running at an average of 19 approvals per year and a population of 2,700, the market appears to be adequately supplied relative to projected housing demand in recent years, suggesting that developers should have a longer-term approach when considering new projects. With the population expected to increase by 194 people by 2041, around 97 new dwellings will be necessary. Recent approval levels appear more than sufficient to meet these forecasts, considering the census average of 2.0 persons per dwelling. This suggests that population growth may exceed trend projections in the coming years, supported by a robust housing supply.
Approvals Pipeline Development applications near Seacliff Park

Development applications around Seacliff Park

Development approvals is a new addition to AreaSearch. We’re actively expanding council coverage and refining the dataset — details and statuses for some councils may be partial. Check back regularly for the latest pipeline.
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SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.

Project PipelineInfrastructure & Major Projects in Seacliff Park

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AreaSearch tracks 9 current infrastructure and development projects close to Seacliff Park, worth an estimated $518 million. 4 are already under construction and 2 are due for completion within three years. The pipeline spans residential development, education & training and retail. Records are compiled from Infrastructure Australia, state agencies, council planning portals and public announcements, reviewed and updated daily, then ranked by proximity, construction stage, completion horizon and project scale.

Detail

Local infrastructure projects, major planning decisions, and development strategies exert a significant influence on neighborhood performance. AreaSearch has identified a single development project expected to influence this locality. Prominent projects include the Southern Suburbs Residential Policy Code Amendment, the Adelaide Public Transport Capacity and Access project, the Adelaide Inner and Outer Ring Route Capacity Improvements, and the North South Corridor, with the details of the most relevant initiatives listed below.

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Frequently Asked Questions - Infrastructure

What are some of the major infrastructure and planning changes likely to influence the suburb of Seacliff Park?
Key infrastructure and planning changes likely to influence the suburb of Seacliff Park include: Southern Suburbs Residential Policy Code Amendment (Planning); Adelaide Public Transport Capacity and Access (Planning); Adelaide's Inner And Outer Ring Route Capacity Improvements (Proposed); North South Corridor (Construction); and SA Water Capital Work Delivery Contracts 2024-28 (Construction). These projects represent significant developments that will shape the area's future infrastructure landscape.
What types of infrastructure projects are impacting the suburb of Seacliff Park?
Infrastructure development impacting the suburb of Seacliff Park spans multiple sectors including Transport & Logistics, Environmental & Disaster Management, and Communities, Precincts & Urban Renewal, among others.
What is the scale of infrastructure investment impacting the suburb of Seacliff Park?
Infrastructure investment analysis indicates substantial capital deployment exceeding $1.1 billion in projects that will impact the extended area.
How does the suburb of Seacliff Park's infrastructure development compare to other areas?
Infrastructure development activity impacting the suburb of Seacliff Park currently ranks below national averages at the 19thth percentile.
Flagstaff Road Upgrade
Category: Transport & Logistics
Stage: Construction | Est. Comp: 2026
Source / Links: Link 1   Link 2  

Upgrade of approximately 3.3 km of Flagstaff Road including duplication of the remaining three-lane section to a permanent four-lane divided carriageway, intersection improvements, upgraded drainage, shared walking and cycling paths, lighting and road safety improvements. Construction has been underway with staged traffic management and community updates.

Transport & Logistics

Westfield Marion Expansion
Category: Retail
Stage: Approved | Est. Comp: 2027
Source / Links: Link 1   Link 2  

Major $259 million expansion and renovation of Westfield Marion shopping centre by Scentre Group. Adding 52 specialty shops and 20 eateries, new ground floor mall, four-level carpark facing Diagonal Road. Expanding from 135,300sqm to 152,200sqm. Part of $500 million South Australian development pipeline including new retail spaces, fresh food precinct, dining options, and entertainment facilities. Enhanced parking and contemporary design updates. Creates up to 2,600 construction and retail jobs, strengthening position as premier southern suburbs retail destination.Introduction of paid parking for stays over 3 hours with ticketless system using numberplate recognition.

Retail

Residential Development at 1 Greenfield Road
Category: Residential Development
Stage: Construction | Est. Comp: 0

Approved development opportunity for 3 stunning two-storey townhouses with water views on a re-zoned and prepared vacant land parcel. This site was previously subject to a larger mixed-use development application.

Residential Development

Oaklands Green
Category: Residential Development
Stage: Construction | Est. Comp: 2030

South Australia's largest social and affordable housing renewal project, transforming 16.5 hectares into a masterplanned community. The development delivers 680 new dwellings, comprising 235 social housing homes managed by Junction and 445 private/affordable homes. The project features 3.4 hectares of open space, including the expansion of Rajah Reserve and sustainable Green Star rated designs. Construction is staged over eight years with the first residents moved in during 2023.

Residential Development

Seaview Downs Primary School Redevelopment
Category: Education & Training
Stage: Construction | Est. Comp: 0
Source / Links: Link 1   Link 2  

Major upgrade project to deliver contemporary learning areas, new administration building, and demolition of ageing infrastructure, based on contemporary educational philosophies. The project received additional funding totaling $19.3 million.

Education & Training

Southern Suburbs Residential Policy Code Amendment
Category: Communities, Precincts & Urban Renewal
Stage: Planning | Est. Comp: 0
Source / Links: Link 1   Link 2  

A proposed planning amendment affecting residential zones in Southern Suburbs, including Seaview Downs, to transition areas to Hills Neighbourhood Zone and facilitate low-density infill development.

Communities, Precincts & Urban Renewal

OTR Seacombe Road Redevelopment
Category: Residential Development
Stage: Completed | Est. Comp: 2024
Source / Links: Link 1   Link 2  

Upgrade of the existing OTR fuel and convenience site delivering a reconfigured car park, a convenience drive-through, 2.4m acoustic fencing, and new on-site amenities including dog wash and vacuum facilities. The store page indicates drive-through and dog wash services operating, consistent with works being completed.

Residential Development

Seaview High School Upgrade
Category: Education & Training
Stage: Completed | Est. Comp: 2022
Source / Links: Link 1   Link 2  

Facility upgrade delivering a new 2 storey multi purpose Creative Design building, a new single storey Performing Arts facility with associated performance spaces, and refurbishment of an existing building to provide contemporary STEM learning areas. Project value reported at $17.65 million. Architect: Flightpath Architects. Builder: Badge Constructions. Construction completed, with completion reported by industry sources at end of 2022.

Education & Training

Jobs & IndustryEmployment Trends in Seacliff Park

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1,566 residents of Seacliff Park are employed, from a labour force of 1,605. Unemployment sits at 2.4%, with participation at 71.0%. Weighted for its industry mix, the area's sectors are forecast to grow about 7.0% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. The working-day population is estimated at 2,043, about 76% of the resident population, so more people leave the area for work than travel in. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.

Detail

A highly qualified labor force characterizes Seacliff Park, alongside strong representation in essential service fields, a low unemployment rate of 2.4%, and an estimated job growth of 4.8% over the preceding year based on AreaSearch compilations. As of March 2026, 1,566 local citizens are employed, with the unemployment rate tracking 1.4% below the 3.8% recorded across Greater Adelaide. Labor force participation is typical, sitting at 71.0% relative to the Greater Adelaide rate of 66.6%. Census data indicates that a minor share of 11.4% of residents performed their jobs from home, although the influence of Covid-19 restrictions during that period must be kept in mind.

The primary sectors employing local residents are health care & social assistance, construction, and education & training. The neighborhood shows a specific concentration in construction, where its share of employment is 1.4 times that of the broader region. On the other hand, manufacturing is less prominent, employing 4.9% of the workforce compared to the regional average of 7.0%. The highly residential character of the neighborhood appears to provide few local employment options, as shown by comparing the count of active workers living in the area to the local working population from Census data. Based on AreaSearch assessments of SALM and ABS statistics compiled from broader local regions, the year leading to March 2026 saw employment expand by 4.8% and the workforce grow by 4.2%, which pushed the local unemployment rate down by 0.6 percentage points. Over the same timeframe in Greater Adelaide, employment increased by 4.2%, the labor force expanded by 4.0%, and unemployment dipped by 0.2 percentage points. Forecasts for the national job market published by Jobs and Skills Australia in May-25 offer additional perspective on potential demand trends in Seacliff Park. These five and ten-year forecasts have been aligned with local employment sectors to project future growth. While nationwide employment is predicted to rise by 6.6% over five years and 13.7% over ten years, the rates of change vary widely across different fields. Projecting these industry trends onto the job profile of Seacliff Park suggests local employment will grow by 7.0% over five years and 14.4% over ten years, assuming a basic weighted extrapolation that does not incorporate localized population adjustments.

Frequently Asked Questions - Employment

What is the employment situation in the suburb of Seacliff Park?
As of March 2026, the suburb of Seacliff Park has approximately 1,566 employed residents with an unemployment rate of 2.4%. This very low unemployment rate indicates a tight labour market with strong demand for workers. The area ranks in the top 25% nationally for employment performance, indicating a robust job market.
How does the suburb of Seacliff Park's unemployment rate compare to the broader region?
As of March 2026, the unemployment rate in the suburb of Seacliff Park stands at 2.4%, which is 1.4 percentage points below Greater Adelaide's rate of 3.8%. This lower unemployment rate suggests stronger local employment conditions. For comparison, the national unemployment rate is 4.2%.
What are the major employment sectors in the suburb of Seacliff Park?
The employment landscape in the suburb of Seacliff Park is dominated by several key sectors. The largest employers are health care & social assistance (20.5% of employment), construction (11.9%), and education & training (10.0%). Other significant employers include retail trade and public administration & safety.
How has employment changed recently in the suburb of Seacliff Park?
Over the past year to March 2026, the suburb of Seacliff Park has experienced employment growth, with total employment increasing while the labour force increased. As a result, the unemployment rate has fall. By comparison, Greater Adelaide saw employment increased and its unemployment rate dropped.
What is the workforce participation rate in the suburb of Seacliff Park?
The workforce participation rate in the suburb of Seacliff Park is 71.0%, which represents the proportion of working-age residents who are either employed or actively seeking work. This high participation rate indicates strong workforce engagement and economic vitality. The local rate leading the Greater Adelaide average of 66.6%, showing similar workforce dynamics to the broader region.
Which industries are over-represented in the suburb of Seacliff Park's employment market?
The suburb of seacliff park shows notable specialization in construction, which employs 11.9% of the local workforce compared to 8.7% regionally. This moderate specialization indicates some local strength in the sector. The area also shows above-average employment in 1 other sectors, contributing to a distinctive economic profile.
What are the employment growth prospects for the suburb of Seacliff Park?
Based on Jobs and Skills Australia projections applied to the suburb of Seacliff Park's industry mix, employment is expected to grow by 7.0% over the next five years and 14.4% over ten years. This exceeds the national forecast of 6.6% over five years, suggesting the area's industry composition is well-positioned for future growth. Steady growth is anticipated across multiple sectors, providing diverse employment opportunities.
How does the job market in the suburb of Seacliff Park compare nationally?
The suburb of seacliff park's employment market shows strong performance nationally, ranking in the top 25% of areas assessed by AreaSearch. This indicates robust employment conditions and economic vitality compared to other regions. Recent job advertisement trends show the broader employment region experienced 0.7% growth, ranking 11.0th out of 37 regions nationally.
What employment opportunities exist for skilled workers in the suburb of Seacliff Park?
Skilled workers will find excellent opportunities in the suburb of Seacliff Park, with knowledge-intensive sectors comprising 42.0% of local employment. Key sectors for skilled workers include health care & social assistance (20.5%), education & training (10.0%), and professional & technical (7.1%). With projected employment growth of 7.0% over five years, demand for skilled workers is expected to remain strong.

EarningsHousehold Income in Seacliff Park

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Median household income in Seacliff Park is $1,693 a week (about $88,000 a year), with median personal income at $856 a week. ATO records put median taxable income at $54,832 a year against an average of $70,289. Household income is from the 2021 Census; taxable income is from ATO Taxation Statistics for the latest financial year available, indexed forward using the ABS Wage Price Index.

Detail

Taxpayer statistics from the ATO aggregated by AreaSearch for financial year 2023 show that income levels in Seacliff Park exceed the national standard. The median income for local taxpayers is $54,832 and the average is $70,289, contrasting with Greater Adelaide metrics of $54,808 and $66,852. Factoring in Wage Price Index growth of 10.17% since financial year 2023, current estimates would sit around $60,408 for the median and $77,437 for the average as of March 2026. The 2021 Census placed household, family, and individual incomes in Seacliff Park near the 53rd percentile nationally.

The data shows that 32.2% of the population, representing 869 residents, earn between $1,500 and $2,999, mirroring the wider metropolitan region where this bracket accounts for 31.8% of the total. Residents retain 85.2% of their income for non-housing expenditures, and the local SEIFA index for income places the area in the 7th decile.

Frequently Asked Questions - Income

What is the median taxable income in the suburb of Seacliff Park?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the suburb of Seacliff Park is approximately $60,408. The official ATO data from FY-23 recorded a median of $54,832.
What is the average taxable income in the suburb of Seacliff Park?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the suburb of Seacliff Park is approximately $77,437. The official ATO data from FY-23 recorded an average of $70,289.
How does the median taxable income in the suburb of Seacliff Park compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the suburb of Seacliff Park is approximately $60,408 compared to $60,382 in Greater Adelaide. The official ATO data from FY-23 shows $54,832 and $54,808 respectively.
How does the average taxable income in the suburb of Seacliff Park compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the suburb of Seacliff Park is approximately $77,437 compared to $73,651 in Greater Adelaide. The official ATO data from FY-23 shows $70,289 and $66,852 respectively.
What are the main income cohorts in the suburb of Seacliff Park according to the 2021 Census?
As per the 2021 Census, the income bracket containing the largest proportion (~32.2% / 869 persons) of the suburb of Seacliff Park's population is the $1,500 - 2,999 cohort.
How do the main income cohorts in the suburb of Seacliff Park compare to the region?
The largest income cohort in the suburb of Seacliff Park is the $1,500 - 2,999 group, representing about 32.2% of the population. In comparison, Greater Adelaide's largest income cohort is the $1,500 - 2,999 group, representing 31.8% of its population, according to the 2021 Census.
What is the median household income in the suburb of Seacliff Park according to the 2021 Census?
The 2021 Census data indicates that the median household income in the suburb of Seacliff Park is $1,693/wk.
What is the median family income in the suburb of Seacliff Park according to the 2021 Census?
According to the 2021 Census, the median family income in the suburb of Seacliff Park is $2,193/wk.
What is the median personal income in the suburb of Seacliff Park according to the 2021 Census?
The 2021 Census shows that the median personal income in the suburb of Seacliff Park is $856/wk.
How does the suburb of Seacliff Park's income rank nationally?
According to AreaSearch's aggregation of the latest postcode level ATO data released for FY-23, the suburb of Seacliff Park had a median income among taxpayers of $54,832 with the average level standing at $70,289. This is above the national average and compares to levels of $54,808 and $66,852 across Greater Adelaide respectively. Based on Wage Price Index growth of 10.17% since FY-23, current estimates would be approximately $60,408 (median) and $77,437 (average) as of March 2026.
What is the disposable income in the suburb of Seacliff Park?
The estimated disposable income in the suburb of Seacliff Park is $6,251 per year according to AreaSearch analysis.
How does the suburb of Seacliff Park's disposable income compare to the region?
The suburb of seacliff park's disposable income is $6,251 compared to $5,698 for Greater Adelaide, based on AreaSearch analysis.

Housing StockHousing & Dwellings in Seacliff Park

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Seacliff Park had 1,041 occupied dwellings at the 2021 Census, 84% detached houses and 3% apartments. 42% are owned with a mortgage, 21% rented and 37% owned outright. At that Census the median rent was $370 a week and the median mortgage repayment $1,800 a month. Rent absorbs 21.9% of household income here and mortgage repayments 24.5%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.

Detail

The residential landscape of Seacliff Park at the time of the latest Census consisted of 83.9% standalone houses and 16.1% alternative housing types, such as townhouses, units, or other options, compared to the wider Adelaide metropolitan distribution of 75.2% houses and 24.9% other dwellings. Furthermore, home ownership in Seacliff Park was substantially higher than the Adelaide metropolitan average, standing at 37.3%, while the remaining properties were either held with a mortgage (41.7%) or occupied by tenants (20.9%). The median monthly home loan repayment of $1,800 was noticeably higher than the metropolitan Adelaide average of $1,562, and the median weekly rent was $370 compared to the metropolitan average of $320.

Across the country, mortgage commitments in Seacliff Park are lower than the Australian average of $1,863, and typical rent prices are below the national median of $375.

Frequently Asked Questions - Housing

What percentage of homes are owned vs rented in the suburb of Seacliff Park?
In the suburb of Seacliff Park, 37.3% of homes are owned outright, 41.7% are owned with a mortgage, and 20.9% are rented.
What percentage of dwellings in the suburb of Seacliff Park are houses?
According to the latest data, 83.9% of dwellings in the suburb of Seacliff Park are houses.
What percentage of dwellings in the suburb of Seacliff Park are apartments or units?
In the suburb of Seacliff Park, 3.1% of dwellings are apartments or units, with an additional 13.0% being semi-detached dwellings.
What is the level of outright home ownership in the suburb of Seacliff Park?
Outright home ownership in the suburb of Seacliff Park stands at 37.3%, compared to 32.1% in Greater Adelaide.
What is the median monthly mortgage repayment in the suburb of Seacliff Park?
The median monthly mortgage repayment in the suburb of Seacliff Park is $1,800, compared to $1,562 in Greater Adelaide.
What is the median weekly rent in the suburb of Seacliff Park?
The median weekly rent in the suburb of Seacliff Park is $370, compared to $320 in Greater Adelaide.
What is the distribution of rental prices in the suburb of Seacliff Park?
In the suburb of Seacliff Park, 2.9% of rentals are $0-149/week, 35.3% are $150-349/week, 60.3% are $350-649/week, 1.5% are $650-949/week, and 0.0% are $950+/week.
What is the average monthly housing cost in the suburb of Seacliff Park?
The aggregate monthly housing cost in the suburb of Seacliff Park is $1,085, which represents the average monthly cost across all housing types.
What percentage of income do residents spend on housing in the suburb of Seacliff Park?
In the suburb of Seacliff Park, households with mortgages typically spend 24.5% of their income on mortgage repayments, while renters spend 21.9% of their income on rent.
How crowded are homes in the suburb of Seacliff Park?
The average persons per bedroom ratio in the suburb of Seacliff Park is 0.7, indicating the level of household density.
How does housing affordability in the suburb of Seacliff Park compare to the region?
Housing affordability in the suburb of Seacliff Park shows mortgage holders spending 24.5% of income on repayments (vs 23.3% regionally), while renters spend 21.9% of income on rent (vs 20.7% regionally).
What types of dwellings are most common in the suburb of Seacliff Park?
The dwelling mix in the suburb of Seacliff Park consists of 83.9% detached houses, 13.0% semi-detached dwellings, 3.1% apartments, and 0.0% other dwelling types.
What is the weighted average housing cost based on tenure mix in the suburb of Seacliff Park?
Based on the area's tenure composition, the weighted average monthly housing cost is approximately $1,085. This accounts for outright owners paying no housing costs, mortgage holders paying $1,800/month, and renters paying $1,602/month.
How affordable is housing in the suburb of Seacliff Park relative to local incomes?
Housing in Seacliff Park consumes approximately 14.8% of median household income ($7,331 monthly), indicating costs are highly affordable. The generally accepted benchmark is that housing should not exceed 30% of household income.
How do proposed developments compare to existing housing types in the suburb of Seacliff Park?
Recent development applications in Seacliff Park show attached dwellings contributing 18% of approvals compared to 16% of existing stock, while detached houses represent 82% of applications versus 84% of current dwellings. This suggests development patterns consistent with existing housing mix. Density increases remain below national trends.

HouseholdsHousehold Composition in Seacliff Park

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Seacliff Park counted 1,041 households at the 2021 Census, averaging 2.4 people each. 30% are couples with children, against 28% couples without children. 26% of households are people living alone, and families average 1.5 children. Household and family composition is measured only by the Census, so these are 2021 figures.

Detail

Domestic units are predominantly family households, representing 70.4% of the total, which includes 30.4% couples with children, 28.0% couples without children, and 11.2% single parent households. Non-family households account for the remaining 29.6%, consisting of lone occupant households at 26.1% and group living situations at 3.7%. The typical household size of 2.4 residents is slightly below the Greater Adelaide average of 2.5.

Frequently Asked Questions - Households

How many households are in the suburb of Seacliff Park?
As of the 2021 Census, the suburb of Seacliff Park had 1,041 households. Based on population growth patterns, this has grown by approximately 2.1% to an estimated 1,063 households today.
What is the typical household size?
The median household size in the suburb of Seacliff Park is 2.4 people. This compares to 2.5 in Greater Adelaide and reflects the area's household composition mix.
What types of households are most common?
Family households dominate at 70.4% of all households. The remaining households consist of lone person households (26.1%), group households (3.7%), and other household types (0.1%).
How are families structured in the area?
Among the 732 family households, 30.4% are couples with children, 28.0% are couples without children at home, and 11.2% are single parent families. This mix shapes local demand for schools, family services, and housing types.
How does the suburb of Seacliff Park compare to regional household patterns?
Compared to Greater Adelaide, the suburb of Seacliff Park shows distinct household patterns. This family-oriented profile influences local demand for family homes, schools, and children's services.
What is the average family size?
Families in the suburb of Seacliff Park have an average of 1.5 children, matching the Greater Adelaide average of 1.5. This influences local demand for child-related services and larger family homes.
What are the marriage patterns in the suburb of Seacliff Park?
Marriage patterns reveal 47.0% of the adult population are currently married, while 33.7% have never married. This compares to 45.7% married and 36.4% never married across Greater Adelaide.
How significant are single-person households?
Single-person households represent 26.1% of all households in the suburb of Seacliff Park, similar to the regional average of 27.7%. This affects demand for smaller dwellings and single-person accommodation.
Are shared living arrangements common?
Group households (unrelated people sharing) account for 3.7% of households, well below the Greater Adelaide average of 3.7%. This low rate suggests limited student or young professional shared accommodation.
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EducationSchools & Education in Seacliff Park

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31.4% of adults in Seacliff Park hold a university qualification, including 20.9% with a bachelor degree and 7.4% with postgraduate qualifications, higher than 98% of areas nationally. A further 24.5% hold a vocational qualification. Qualifications come from the 2021 Census.

Detail

The local educational profile stands out when compared to the broader region, with tertiary qualification rates at 31.4% of citizens aged 15 and above, outperforming both the South Australian average of 25.7% and the SA4 region level of 28.1%, showing a strong focus on tertiary education. Bachelor degrees are the most common at 20.9%, followed by postgraduate degrees at 7.4% and graduate diplomas at 3.1%. Practical and vocational skills are also well represented, with 36.7% of citizens aged 15 and above holding trade certifications, split between advanced diplomas at 12.2% and certificate-level courses at 24.5%.

Enrolment rates are high, with 26.9% of local residents actively participating in formal study. This student population includes 8.9% attending primary schools, 6.9% in secondary schools, and 5.4% enrolled in higher education programs.

Frequently Asked Questions - Education

What percentage of people in the suburb of Seacliff Park have university qualifications?
31.4% of people aged 15 and over in the suburb of Seacliff Park have university qualifications, compared to 28.9% in the broader region.
What percentage of people in the suburb of Seacliff Park have no formal qualifications?
32.0% of people aged 15 and over in the suburb of Seacliff Park have no formal qualifications, compared to 39.0% regionally.
How does the suburb of Seacliff Park's education level compare to national averages?
The suburb of seacliff park ranks in the 98th percentile nationally for education based on AreaSearch's analysis of qualification and performance metrics.
What types of qualifications are most common in the suburb of Seacliff Park?
The most common qualifications in the suburb of Seacliff Park are: Certificate (24.5%), Bachelor Degree (20.9%), Advanced Diploma (12.2%).
What proportion of the suburb of Seacliff Park's population is currently attending educational institutions?
26.9% of the population in the suburb of Seacliff Park is currently engaged in formal education, with 8.9% in primary school, 6.9% in secondary school, 5.4% at university.
What is the ICSEA score for schools in the suburb of Seacliff Park?
The average ICSEA (Index of Community Socio-Educational Advantage) score for schools in the suburb of Seacliff Park is 0, indicating below-average socio-educational advantage compared to the national average of 1000.

Schools Detail

AmenitiesServices & Amenities in Seacliff Park

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Getting AroundTransport & Commuting in Seacliff Park

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Public transport in Seacliff Park reaches 17 stops on 14 routes, timetabled for about 1,200 services a week. The typical home sits about 180 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.5 vehicles. Stop and service counts are built from operators' published GTFS timetables and refresh with each timetable release; vehicle ownership is from the 2021 Census.

Detail

Public transit records show 17 operational stops in Seacliff Park, consisting of bus services. These points are connected to 14 distinct routes, which support a total of 1,196 passenger journeys per week. Access to transit is rated as excellent, with typical walking distances to the nearest stop averaging 179 meters. Because the locality is primarily residential, most workers travel to other areas for employment, with private cars remaining the primary travel choice at 87%, followed by rail transit at 8%. Motor vehicle ownership averages 1.5 per household. A minor share of 11.4% of residents work from home, based on 2021 Census data, which may reflect the impact of pandemic conditions.

Weekly timetables show an average of 170 journeys per day across all active routes, which translates to roughly 70 weekly services for each transit stop.

Frequently Asked Questions - Transport

How many public transport stops are in Seacliff Park?
There are 17 public transport stops within the suburb of Seacliff Park.
How frequent are the transport services in Seacliff Park?
the suburb of Seacliff Park has 1,196 weekly trips across 14 routes, averaging 170 trips per day.
How far are residents from public transport in Seacliff Park?
On average, residential properties are 179 meters from the nearest transport stop.

Transport Stops Detail

HealthcareHealth Services in Seacliff Park

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70.8% of residents in Seacliff Park report no long-term health condition. 5.0% need daily assistance with core activities, and 54.8% hold private health cover. The standardised death rate runs at 4.9 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.

Detail

An evaluation of health indicators reveals positive outcomes in Seacliff Park, based on AreaSearch analysis of mortality statistics and the prevalence of long-term illnesses, with both younger and older demographic groups showing a low incidence of typical medical issues. Additionally, the rate of private health insurance is high, covering approximately 55% of the population, which equals about 1,478 residents, compared to 52.7% across Greater Adelaide. The most prevalent health issues reported among residents were arthritis and asthma, affecting 7.6% and 7.3% of the community respectively, while 70.8% of the population reported no long-term medical conditions, compared to 67.9% across Greater Adelaide.

The working-age population exhibits strong health profiles with minimal chronic illness. Seniors aged 65 and over make up 21.3% of the community, representing 575 residents, which is higher than the Greater Adelaide figure of 19.2%. Health indicators for these senior citizens are strong, aligning well with national benchmarks for the broader public.

Frequently Asked Questions - Health

How many people in the suburb of Seacliff Park have private health insurance?
Around 54.8% of people in the suburb of Seacliff Park are covered by private health insurance, which compares to 52.7% in the broader region of Greater Adelaide.
What percentage of the population requires ongoing medical assistance in the suburb of Seacliff Park?
In the suburb of Seacliff Park, 5.0% of the population is identified as requiring ongoing medical assistance. This figure is slightly different from the regional average, where 6.6% of people in Greater Adelaide require similar assistance.
How prevalent is asthma in the suburb of Seacliff Park?
7.3% of people in the suburb of Seacliff Park are diagnosed with asthma. In comparison, 7.7% of the population across Greater Adelaide is affected by asthma.
What percentage of people have diabetes in the suburb of Seacliff Park?
Diabetes affects 3.8% of the the suburb of Seacliff Park population, while in the surrounding region, 4.8% of people are diagnosed with diabetes.
What is the percentage of people with heart disease in the suburb of Seacliff Park?
3.2% of people in the suburb of Seacliff Park have heart disease. Across the region of Greater Adelaide, 3.8% of the population is affected by heart disease.
How does the suburb of Seacliff Park compare to the region in terms of overall private health coverage?
In the suburb of Seacliff Park, 54.8% of the population are estimated to have private health insurance. Comparatively, Greater Adelaide sees an estimated private health coverage rate of 52.7%.

Ancestry & LanguageCultural Diversity in Seacliff Park

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26.5% of Seacliff Park residents were born overseas and 11.9% speak a language other than English at home. The largest reported ancestries are English (31.2%) and Australian (26.3%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.

Detail

Seacliff Park exhibits above-average cultural diversity, with 11.9% of its residents speaking a language other than English at home and 26.5% born in another country. Christianity is the primary religion, representing 40.6% of local residents. The most noticeable divergence is in the Other religious category, which represents 2.2% of the population, compared to 1.8% across Greater Adelaide. Looking at parent countries of birth, the primary ancestries in Seacliff Park are English at 31.2%, Australian at 26.3%, and Other at 8.3%. There are also specific differences in other cultural backgrounds: residents of Polish descent are overrepresented at 1.2% in Seacliff Park compared to 1.0% in the region, German heritage is at 5.9% compared to 5.1%, and Russian heritage is at 0.4% compared to 0.3%.

Frequently Asked Questions - Diversity

What is the level of cultural diversity in the suburb of Seacliff Park?
Seacliff Park was found to be above average in terms of cultural diversity, with 11.9% of its population speaking a language other than English at home and 26.5% born overseas.
What is the most common religion in the suburb of Seacliff Park?
The main religion in Seacliff Park was found to be Christianity, which makes up 40.6% of people in Seacliff Park. However, the most apparent overrepresentation was in Other, which comprises 2.2% of the population, compared to 1.8% across Greater Adelaide.
What are the top countries of origin in the suburb of Seacliff Park?
In terms of ancestry (country of birth of parents), the top three represented groups in Seacliff Park are English, comprising 31.2% of the population, Australian, comprising 26.3% of the population, and Other, comprising 8.3% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: Polish is notably overrepresented at 1.2% of Seacliff Park (vs 1.0% regionally), German at 5.9% (vs 5.1%) and Russian at 0.4% (vs 0.3%).
How does the percentage of people born overseas compare to the regional average?
26.5% of the the suburb of Seacliff Park population was born overseas, compared to 28.7% regionally.
What percentage of the the suburb of Seacliff Park population speaks a language other than English at home?
11.9% of the population in the suburb of Seacliff Park speaks a language other than English at home, compared to 22.2% in the wider region.
How many people in the suburb of Seacliff Park identify as Australian Aboriginal?
0.9% of the the suburb of Seacliff Park population identifies as Australian Aboriginal, compared to 1.2% in the region.
What is the citizenship status of the population in the suburb of Seacliff Park?
90.1% of the the suburb of Seacliff Park population holds citizenship, compared to 86.3% in the wider region.

Age StructureAge Profile of Seacliff Park

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The median resident of Seacliff Park is 41. 24.5% of residents are aged 15 to 34. Age cohorts are not raw Census counts: the Census split is re-based to the latest ABS population estimates and state projections.

Detail

The median age of 41 years in Seacliff Park is slightly higher than the Greater Adelaide average of 39 and exceeds the national average of 38. The age distribution shows a high concentration of residents aged 45 to 54, making up 13.4% of the population, while the group aged 25 to 34 is smaller at 12.0% compared to Greater Adelaide. Since 2021, the 15 to 24 age bracket has risen from 10.9% to 12.5% of the population, and the 75 to 84 bracket has increased from 5.7% to 7.2%, whereas the 65 to 74 group has decreased from 12.1% to 10.7%.

Projections to 2041 point to significant changes in the age structure of Seacliff Park, with the cohort aged 85 and over expected to grow by 87 individuals (95%), rising from 91 to 179. In contrast, the groups aged 5 to 14 and 0 to 4 are expected to decrease in size.

Frequently Asked Questions - Age

What is the median age in the suburb of Seacliff Park?
According to the latest data, the median age in the suburb of Seacliff Park is 41 years.
How does the suburb of Seacliff Park's median age compare to broader areas?
At 41 years, Seacliff Park is 2 years older than the Greater Adelaide average (39 years) and 3 years older than the national average (38 years).
What age groups are over-represented in the suburb of Seacliff Park?
The most over-represented age group in the suburb of Seacliff Park compared to the Greater Adelaide region is the 45 - 54 group, making up 13.4% of the population.
What age groups are under-represented in the suburb of Seacliff Park?
The most under-represented age group in the suburb of Seacliff Park compared to the Greater Adelaide region is the 25 - 34 group, making up 12.0% of the population.
Are there age groups with notable population variances?
No, the age distribution in the suburb of Seacliff Park is broadly in line with the Greater Adelaide region.
What is the percentage of children (0-14 years) in the suburb of Seacliff Park?
The percentage of children aged 0-14 years in the suburb of Seacliff Park is 17.0%.
What is the percentage of older people (65+ years) in the suburb of Seacliff Park?
The percentage of people aged 65 and over in the suburb of Seacliff Park is 21.3%.

Data & MethodBoundaries, Sources & Method for Seacliff Park

Data currency Refreshed

9 of 14 data sections on this page were updated within the last 12 months — the newest current to Aug 2026.

Everything is aggregated to the Suburb (SAL) boundary shown above, on a 2021 Census baseline. Only 3 sections — housing, households and cultural diversity — still wait on the 2026 Census.

The ledger — source, cycle and currency by section

Section Source & update cycle Currency
Updated within the last 12 months 9 sections
Population ABS, GNAF, Geoscience Australia Annual (ABS ERP) May 2026 3 months ago headline measures · 2021 Census baseline
Re-based to the ABS Estimated Resident Population (June 2025 release) and updated with new dwellings from GNAF address data. Current to May 2026, with the 2021 Census supplying the small-area baseline.
Age profile ABS, Geoscience Australia, State governments Annual May 2026 3 months ago headline measures · 2021 Census baseline
Age cohorts are re-based to the latest ABS population estimates and state projections, current to May 2026. Each cohort is held as a Census baseline and a current estimate.
Development & approvals ABS, GNAF Monthly (ABS approvals) Jun 2026 2 months ago headline measures · May 2026 baseline
Property sales & rents Valuer General, Rental Board, ABS Weekly sales, quarterly rents Aug 2026 this month all 21 measures
Sales from the state Valuer General register, refreshed weekly, and rents from quarterly rental bond lodgements. Both are read live each time this page loads, current to Aug 2026.
Infrastructure projects Infrastructure Australia, Local governments Daily May 2026 3 months ago all 2 projects tracked here
Project pipeline maintained continuously from Infrastructure Australia, state agencies, local government and public announcements. Records are added and revised daily; this area was last updated May 2026.
Employment ABS, DEWR, JSA Quarterly (ABS SALM) Mar 2026 5 months ago headline measures · 2021 Census baseline
Unemployment and labour force from ABS Small Area Labour Markets, current to Mar 2026. The growth outlook applies Department of Employment (now Jobs and Skills Australia) forecasts for all 19 industry divisions to the local industry mix, so it measures sector composition rather than local expansion and makes no allowance for population growth. Job demand comes from the same agency via its Internet Vacancy Index; industry and occupation structure from the 2021 Census.
Education ABS, ACARA Annual (ACARA) Aug 2026 this month headline measures · 2021 Census baseline
Transport ABS, State Transport Departments Each timetable release Jul 2026 last month headline measures · 2021 Census baseline
Services & amenities Provider directories, ACECQA Continuous Jul 2026 last month all 14 measures
Annual and financial-year sources 2 sections
Income ABS, ATO Annual (ATO) FY 2023 3 years ago headline measures · 2021 Census baseline
ATO taxable income statistics for FY 2023, indexed forward using the Wage Price Index. Census household income provides the distribution detail.
Health ABS, ATO Annual 2024 2 years ago headline measures · 2021 Census baseline
Census-measured — next update: 2026 Census 3 sections No more current small-area source exists for these, so they are labelled as Census-measured rather than implied to be current.
Housing ABS 5-yearly (Census) 2021 Census next update 2026 all 30 measures
Households ABS 5-yearly (Census) 2021 Census next update 2026 all 18 measures
Cultural diversity ABS, Geoscience Australia 5-yearly (Census) 2021 Census next update 2026 all 44 measures

"Currency" is the most recent release feeding that section. Where the Census supplies the structural baseline underneath a current headline figure, the row says so.

How the numbers are built

Population

The Census provides the small-area baseline, aggregated from mesh blocks to this boundary. It is then re-based to the ABS Estimated Resident Population (June 2025 release), and new dwellings built since Census night are counted from address data — 29 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (2,644 at the 2021 Census → 2,700 now). Annual growth rates are compound (CAGR), not simple averages.

Age profile

Cohort shares are not raw Census counts. Every cohort is held as a pair — the Census baseline and a current estimate — and the split is re-based using ERP and state population projections, current to May 2026. Median age is the Census median plus modelled change since. Charts that show both are labelled "2021 Census vs Current Estimate".

Property sales

Sourced from the state valuation authority's sales register — current, not Census, and refreshed weekly. Medians are calculated from settled transactions in the period shown; periods with very low transaction counts are flagged or suppressed, because a handful of sales can move a median substantially.

Rents

Derived from state rental bond lodgement data, by dwelling type and bedroom count. Bonds are lodged at the start of a new tenancy, so this reflects new lettings, not the whole rented stock.

Development & infrastructure

Building approvals come from current ABS releases; development applications are collected from council and state planning portals; the infrastructure pipeline is compiled from Infrastructure Australia and local government sources. Applications are matched to this boundary by address or coordinates, so very recent lodgements may not yet appear.

Employment & income

Industry and occupation structure comes from the Census, but the headline labour-market indicators do not. Unemployment and labour force are derived from ABS Small Area Labour Markets (quarterly). The employment outlook applies Department of Employment forecasts for all 19 industry divisions to this area's own industry mix (the agency is now Jobs and Skills Australia), as does the Internet Vacancy Index used for job demand. Because it is weighted on industry composition alone, that outlook carries no allowance for local population growth — in fast-growing areas the real rise in local jobs will typically be higher. Income combines Census household income with ATO taxable-income statistics for FY 2023, indexed forward using the Wage Price Index.

Education, transport & amenities

School enrolments, ICSEA and performance come from ACARA's current release, not the Census. Public transport stops and service frequency are derived from GTFS timetable feeds published by state transport departments. Services and amenities are proximity and count scores built from provider directories, refreshed on their own cycle. The Census contributes only the travel-to-work and qualification measures.

Rankings and benchmarks. Where we rank this area, the comparison set is every area of the same boundary type — suburbs against suburbs, SA2s against SA2s. Benchmarks compare this area against its greater capital city region and the national figure for the same measure and period.

Limits worth knowing. Small areas carry larger error margins, and the ABS introduces small random adjustments to Census counts to protect confidentiality — so totals may not sum exactly. Estimates re-based from regional data describe the area's expected trajectory, not a direct count of it. Figures are indicative for research and are not financial, planning or valuation advice.

Cross-check us. The Census baseline for this boundary is at ABS 2021 Census QuickStats (SAL41312). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.

Common questions about this page

How do Seacliff Park suburb boundaries differ from Statistical Areas?
This page uses Suburbs and Localities (SAL) boundaries (suburb-style geography). SAL represents commonly-known suburb names used in addresses, while Statistical Areas (SA2) are designed for census/statistical reporting. Even when sharing the same name, SAL and SA2 boundaries often cover different geographic areas with different populations.
Where does the data on this Seacliff Park page come from?
AreaSearch compiles this page from official and industry sources — including ABS, Geoscience Australia, Valuer General, Provider directories, DEWR, JSA, State Transport Departments and ACARA — then aggregates them to the boundary shown and calculates the rankings, growth rates and benchmarks itself. Property sales come from the state valuation authority, rents from state rental bond lodgements, development applications from council and state planning portals, school data from ACARA, and public transport from state transport departments.
Is the Seacliff Park data on this page just from the 2021 Census?
No. Most of this page is maintained well beyond the Census. Sourced entirely from current releases: development & approvals (Jun 2026), property sales & rents (Aug 2026), infrastructure projects (May 2026) and services & amenities (Jul 2026). Built on a Census baseline but carrying newer measures on top: population (to May 2026), age profile (to May 2026), employment (to Mar 2026), income (to FY 2023), education (to Aug 2026), transport (to Jul 2026) and health (to 2024). Population and age cohorts in particular are re-based to the latest ABS Estimated Resident Population rather than left at 2021 counts. Only housing, households and cultural diversity remain wholly Census-based, because no more current small-area dataset exists for those measures.

Nearby Areas