Suburb profile · Greater Adelaide
Seacombe Heights has an estimated 1,605 residents, up 3.6% since the 2021 Census, with 14 projects tracked in the area around Seacombe Heights.
Updated 15 Oct 2026.
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Located 13 kilometres south-southwest from Adelaide CBD, the suburb of Seacombe Heights has an estimated population of around 1,605 as of Aug 2026, based on aggregated SA2-level ERP counts, released yearly, and national address file data updated each quarter. (ERP) means Estimated Resident Population. This is an increase of 56 people (3.6%) since the 2021 Census, which recorded 1,549 people. The area is characterised by a strong presence of detached houses, a notable healthcare employment base, high levels of mortgaged homes, elevated 45 to 54yo representation, a very high proportion of married families, and pronounced construction employment. Residents include a high proportion of middle-aged people, comprised largely of couples without children, and population growth shows moderate expansion patterns.
The suburb of Seacombe Heights combines a substantial detached housing presence with established employment in healthcare and construction.
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01Profile
The analysis, national rankings and who lives there.
Located 13 kilometres south-southwest from Adelaide CBD, the suburb of Seacombe Heights has an estimated population of around 1,605 as of Aug 2026, based on aggregated SA2-level ERP counts, released yearly, and national address file data updated each quarter. (ERP) means Estimated Resident Population. This is an increase of 56 people (3.6%) since the 2021 Census, which recorded 1,549 people. The area is characterised by a strong presence of detached houses, a notable healthcare employment base, high levels of mortgaged homes, elevated 45 to 54yo representation, a very high proportion of married families, and pronounced construction employment. Residents include a high proportion of middle-aged people, comprised largely of couples without children, and population growth shows moderate expansion patterns.
The suburb of Seacombe Heights combines a substantial detached housing presence with established employment in healthcare and construction.
Estimated resident population by year (ABS, not Census counts): 1,409 in 2006 and 1,600 in 2025. The dashed segment ends at the AreaSearch estimate for Aug 2026: 1,605 (ABS June 2025 base).
Share of residents in each age band (ABS age profile, scaled to the Aug 2026 AreaSearch estimate). Largest: 35 to 44, 14.4%.
Share of households in each weekly household income band (2021 Census). Largest: $1,500 - 2,999, 37.7%.
Seacombe Heights ranks in the 99th percentile nationally for employment drivers and the 71st for health.
Each bar and spoke is a national percentile; the dashed ring is the typical area. 99th = higher than 99 in every 100 neighbourhood-sized areas across Australia (ABS SA2 areas). Higher means more of the measure, not necessarily better. Orange marks the top three measures where a higher percentile is better; not Age, Housing or Housing Cost.
02Market and pipeline
Rents, sale prices and what is being built.
The median rent in Seacombe Heights is $638 a week, up 6.0% over 12 months to Jun 2026 and 12% above Greater Adelaide.
12% above Greater Adelaide on median weekly rent
Median weekly rent by year, lodged bonds. Houses (solid line): $400 in 2020, $650 in 2026; Units (dashed orange line): $260 in 2021, $330 in 2026. The latest is to Jun 2026.
Some rents are estimated from nearby areas.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Median rent | $638 a week | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Change in median rent over 12 months | +6.0% | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Median rent, houses | $650 a week | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Change in median rent for houses over 12 months | +4.8% | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Median rent, units | $330 a week | Rental bond lodgements, median for the 12 months to Jun 2026 |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Change in median rent for units over 12 months | 0.0% | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Median rent, Marion | $609 a week | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Change in median rent, Marion, over 12 months | +7.2% | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Median rent, Adelaide - South | $598 a week | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Change in median rent, Adelaide - South, over 12 months | +7.1% | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Median rent, Greater Adelaide | $570 a week | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Change in median rent, Greater Adelaide, over 12 months | +6.2% | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Median rent, SA | $546 a week | Rental bond lodgements, median for the 12 months to Jun 2026 | |
| Change in median rent, SA, over 12 months | +6.4% | Rental bond lodgements, median for the 12 months to Jun 2026 |
AreaSearch tracks 14 projects in and around Seacombe Heights, 7 of them under construction.
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.
The Flinders Medical Centre Stage 1 Southern Redevelopment is a major $572 million public healthcare expansion delivered by Built Environs for SA Health and the Department for Infrastructure and Transport.
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.
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.
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.
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.
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.
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.
A 650m extension of the former Tonsley rail line delivering the new Flinders Station next to Flinders Medical Centre and connecting the Flinders University precinct to the Adelaide rail network.
The Marion Cultural Centre Plaza has been redeveloped to become a vibrant heart for the city, providing a space for community gatherings, celebrations, relaxation, and support for local businesses. The upgrade includes surface treatments, soft landscaping, tree planting, public art installations, and a new pedestrian crossing on Warracowie Way.
Comprehensive upgrade of sporting and community amenities at Flagstaff Hill Recreation Ground delivered by the City of Onkaparinga. The project features upgraded clubroom and change facilities, enhanced playing surfaces and sports lighting, modernised playground equipment, and site-wide accessibility improvements.
An 11-hectare residential development by Peet Limited within the Tonsley Innovation District, aiming to deliver over 850 homes, including terrace homes and apartments. The community offers a convenient, low-maintenance lifestyle with green open spaces and connectivity to Tonsley's amenities.
Images marked AI impression are illustrative only and not photographs of the project; follow the project links for actual imagery. Original imagery? Contact us.
Estimated completion year of the 4 projects in and around the area that are not yet completed and have one: 2026 1, 2027 1, 2028 1, 2029 0, 2030 1. 5 have no completion year.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| ABS building approvals | 1.0 per 1,000 people | ABS building approvals | 11th percentile nationally |
| Average approvals a year | 2 | ABS building approvals | 8th percentile nationally |
Dwelling approval activity in the suburb of Seacombe Heights area has seen 8 residential approvals over the past two financial years, based on AreaSearch's SA2 aggregation method. The suburb of Seacombe Heights's current population of 1,605 has been supported by 2 approvals on average over recent years.
The long-run outlook for development is part of AreaSearch Operator and Pro. Log in to see the forecast detail in Full.
Looking at development activity over the past five years, the suburb of Seacombe Heights's approval levels have been significantly above the yearly average of 2, indicating strong recent growth in development activity.
Over the past five years, the population in the suburb of Seacombe Heights has grown by approximately 40 people, while 8 residential approvals were recorded. This equates to a ratio of 5.0 people added for each new dwelling approval. This high ratio suggests strong population growth relative to housing supply, potentially indicating unmet housing demand.
Key infrastructure and planning changes likely to influence the suburb of Seacombe Heights include: Flagstaff Road Upgrade (Construction); Flinders Medical Centre Southern Redevelopment Stage 1 (Acute Services Building) (Construction); Flinders Medical Centre Acute Services Building (Construction); 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.
Infrastructure development impacting the suburb of Seacombe Heights spans multiple sectors including Transport & Logistics, Social Infrastructure, and Health & Medical, among others.
Infrastructure development activity impacting the suburb of Seacombe Heights currently ranks below national averages at the 32nd percentile.
03People
Population, age, income, work, education and more.
99th = higher than 99 in every 100 neighbourhood-sized areas across Australia (ABS SA2 areas). Higher means more of the measure, not necessarily better.
An assessment of population growth drivers in Seacombe Heights reveals an overall ranking slightly below national averages considering recent, and medium term trends.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Population | 1,605 | AreaSearch estimate, Aug 2026, from the ABS June 2025 base | |
| Growth since 2021 Census | +3.6% | AreaSearch estimate, Aug 2026, against the 2021 Census | 29th percentile nationally |
| Population density | 1,910 per km² | AreaSearch estimate, Aug 2026, from the ABS June 2025 base | 69th percentile nationally |
| Average yearly growth, 2020 to 2025 | +0.5% | ABS estimated resident population series to June 2025 | |
| Average yearly growth, 2015 to 2025 | +0.4% | ABS estimated resident population series to June 2025 |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Population at the 2021 Census | 1,549 | 2021 Census | |
| Residents added since the 2021 Census | 56 | AreaSearch estimate, Aug 2026, against the 2021 Census | |
| Average yearly growth, 2022 to 2025 | +0.8% | ABS estimated resident population series to June 2025 | |
| Population growth, 2024 to 2025 | +0.6% | ABS estimated resident population series to June 2025 | |
| Land area | 0.84 km² | AreaSearch boundary analysis |
Total population for the suburb of Seacombe Heights was estimated to be approximately 1,605 as at Aug 2026. This is based upon an estimated resident population of 1,600 from the ABS up to June 2025.
The suburb of Seacombe Heights has added approximately 56 people and shown a 3.62% increase from the 1,549 people recorded at the 2021 Census period.
The population density in the suburb of Seacombe Heights is estimated at 1,911 persons per square kilometre based on the latest population estimate.
Over the past 10 years, the population in the suburb of Seacombe Heights has shown a compound annual growth rate of 0.4% per annum.
Population growth in the suburb of Seacombe Heights 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.
Seacombe Heights's population is slightly older than the national pattern.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Median age | 40 years | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | 56th percentile nationally |
| Aged 65 and over | 19.2% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Children under 15 | 18.4% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 15 to 34 | 24.5% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 25 to 64 | 50.7% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Median age at the 2021 Census | 40 years | 2021 Census | |
| Aged 0 to 4 | 5.8% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 5 to 14 | 12.6% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 15 to 24 | 12.1% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 25 to 34 | 12.4% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 35 to 44 | 14.4% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 45 to 54 | 14.1% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 55 to 64 | 9.8% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 65 to 74 | 8.2% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 75 to 84 | 8.8% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate | |
| Aged 85 and over | 2.2% | ABS estimated resident population age profile (June 2025), scaled to the Aug 2026 AreaSearch estimate |
AreaSearch estimates the median age in the suburb of Seacombe Heights at 40 years as at August 2026. That is in line with the 2021 Census figure of 40 years, on an age profile AreaSearch re-estimates for population change recorded since the Census.
At an estimated 40 years as at August 2026, Seacombe Heights is comparable to the Greater Adelaide 2021 Census average (39 years) and 2 years older than the national Census average (38 years).
On AreaSearch estimates updated to August 2026, the most over-represented age group in the suburb of Seacombe Heights compared to the Greater Adelaide region is the 45 - 54 group, making up 14.1% of the population.
On AreaSearch estimates updated to August 2026, the most under-represented age group in the suburb of Seacombe Heights compared to the Greater Adelaide region is the 25 - 34 group, making up 12.4% of the population.
No, the age distribution in the suburb of Seacombe Heights is broadly in line with Greater Adelaide.
AreaSearch estimates children aged 0-14 years at 18.4% of the population in the suburb of Seacombe Heights as at August 2026.
AreaSearch estimates people aged 65 and over at 19.2% of the population in the suburb of Seacombe Heights as at August 2026.
Income levels align closely with national averages, indicating typical economic conditions for Australian communities according to AreaSearch analysis.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Median taxable income (ATO) | $58,245 a year | ATO FY-24, annual | 46th percentile nationally |
| Average taxable income | $75,172 a year | ATO FY-24, annual |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Census household income / week | $1,917 | 2021 Census, weekly | 60th percentile nationally |
| Census personal income / week | $815 | 2021 Census, weekly | 52nd percentile nationally |
| High-income households | 22.0% | 2021 Census | |
| Census family income / week | $2,143 | 2021 Census, weekly | |
| Low-income households | 20.4% | 2021 Census |
Based on Wage Price Index adjustments to June 2026, the estimated median taxable income in the suburb of Seacombe Heights is approximately $62,404. The official ATO data from FY-24 recorded a median of $58,245.
Based on Wage Price Index adjustments to June 2026, the estimated average taxable income in the suburb of Seacombe Heights is approximately $80,539. The official ATO data from FY-24 recorded an average of $75,172.
Based on Wage Price Index adjustments to June 2026, the estimated median taxable income in the suburb of Seacombe Heights is approximately $62,404 compared to $62,352 in Greater Adelaide. The official ATO data from FY-24 shows $58,245 and $58,197 respectively.
Based on Wage Price Index adjustments to June 2026, the estimated average taxable income in the suburb of Seacombe Heights is approximately $80,539 compared to $76,380 in Greater Adelaide. The official ATO data from FY-24 shows $75,172 and $71,290 respectively.
As per the 2021 Census, the weekly household income bracket containing the largest proportion of the suburb of Seacombe Heights's households (~37.7% / 214 households) is the $1,500 - 2,999 cohort.
The largest weekly household income cohort in the suburb of Seacombe Heights is the $1,500 - 2,999 group, representing about 37.7% of households. In comparison, Greater Adelaide's largest household income cohort is the $1,500 - 2,999 group, representing 31.8% of its households, according to the 2021 Census.
The 2021 Census data indicates that the median household income in the suburb of Seacombe Heights is $1,917/wk.
According to the 2021 Census, the median family income in the suburb of Seacombe Heights is $2,143/wk.
The 2021 Census shows that the median personal income in the suburb of Seacombe Heights is $815/wk.
The suburb of Seacombe Heights shows a median taxpayer income of $58,245 and an average of $75,172 according to the latest postcode level ATO data aggregated by AreaSearch for FY-24. This is above the national average, contrasting with Greater Adelaide's median income of $58,197 and average income of $71,290. Based on Wage Price Index growth of 7.14% since FY-24, current estimates would be approximately $62,404 (median) and $80,539 (average) as of June 2026.
The estimated disposable income in the suburb of Seacombe Heights is $7,190 per year according to AreaSearch analysis.
The suburb of Seacombe Heights's disposable income is $7,190 compared to $5,698 for Greater Adelaide, based on AreaSearch analysis.
AreaSearch analysis of employment trends sees Seacombe Heights performing better than 99% of local markets assessed across Australia.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Unemployment rate | 0.6% | ABS and DEWR labour data, compiled by AreaSearch | |
| Workforce participation | 71.2% | ABS and DEWR labour data, compiled by AreaSearch | |
| Employed residents | 929 | ABS and DEWR labour data, compiled by AreaSearch | |
| Daytime population | 1,167 | AreaSearch estimate of residents and workers present on a weekday | |
| Labour force | 935 | ABS and DEWR labour data, compiled by AreaSearch |
As of March 2026, the suburb of Seacombe Heights has approximately 929 employed residents with an unemployment rate of 0.6%. 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.
As of March 2026, the unemployment rate in the suburb of Seacombe Heights stands at 0.6%, which is 3.2 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%.
The employment landscape in the suburb of Seacombe Heights is dominated by several key sectors. The largest employers are health care & social assistance (21.3% of employment), construction (12.1%), and education & training (11.0%). Other significant employers include retail trade and manufacturing.
Over the past year to March 2026, the suburb of Seacombe Heights has experienced employment growth, with total employment increasing while the labour force increased. As a result, the unemployment rate has fallen. By comparison, Greater Adelaide saw employment increased and its unemployment rate dropped.
The workforce participation rate in the suburb of Seacombe Heights is 71.2%, 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 66.4%, showing similar workforce dynamics to Greater Adelaide.
The suburb of Seacombe Heights shows notable specialisation in health care & social assistance, which employs 21.3% of the local workforce compared to 17.7% across Greater Adelaide. This moderate specialisation indicates some local strength in the sector. The area also shows above-average employment in 1 other sectors, contributing to a distinctive economic profile.
The long-run outlook for employment is part of AreaSearch Operator and Pro. Log in to see the forecast detail in Full.
The suburb of Seacombe Heights'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 saw a 0.5% decline, ranking 22nd out of 37 regions nationally.
Educational attainment in Seacombe Heights sits close to the middle of locations nationally, based on AreaSearch's ranking of qualification and performance metrics.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Bachelor qualifications | 21.0% | 2021 Census | 65th percentile nationally |
| Postgraduate qualifications | 6.9% | 2021 Census | 63rd percentile nationally |
| University qualifications | 30.1% | 2021 Census | |
| Vocational qualifications | 23.6% | 2021 Census | 45th percentile nationally |
| Graduate diploma or certificate | 2.2% | 2021 Census | 44th percentile nationally |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Advanced diploma or diploma | 10.2% | 2021 Census | 40th percentile nationally |
| No post-school qualification | 36.0% | 2021 Census | |
| Residents attending an educational institution | 28.1% | 2021 Census | |
| Residents attending university or other higher education | 6.2% | 2021 Census | 72nd percentile nationally |
| Residents attending primary school | 9.7% | 2021 Census | 41st percentile nationally |
| Residents attending secondary school | 7.1% | 2021 Census | 31st percentile nationally |
30.1% of people aged 15 and over in the suburb of Seacombe Heights have university qualifications, compared to 28.9% in Greater Adelaide.
36.0% of people aged 15 and over in the suburb of Seacombe Heights have no formal qualifications, compared to 39.0% in Greater Adelaide.
The suburb of Seacombe Heights ranks in the 53th percentile nationally for education based on AreaSearch's analysis of qualification and performance metrics.
The most common qualifications in the suburb of Seacombe Heights are: Certificate (23.6%), Bachelor Degree (21.0%), Advanced Diploma (10.2%).
28.1% of the population in the suburb of Seacombe Heights is currently engaged in formal education, including 9.7% in primary school, 7.1% in secondary school, 6.2% at university (all shares of total residents).
The average ICSEA (Index of Community Socio-Educational Advantage) score for schools in the suburb of Seacombe Heights is 1032, indicating average socio-educational advantage (national average is 1000).
There are 1 schools within the suburb of Seacombe Heights, with a combined enrollment of approximately 1,345 students.
The suburb of Seacombe Heights includes 1 secondary school.
Seacombe Heights features high concentrations of couples without children and family households but relatively few lone person households, with a larger average household size than Greater Adelaide.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Median household size | 2.6 people | 2021 Census | 63rd percentile nationally |
| Lone-person households | 18.0% | 2021 Census | 20th percentile nationally |
| Couples with children | 36.7% | 2021 Census | 70th percentile nationally |
| Couples without children | 32.5% | 2021 Census | 81st percentile nationally |
| One-parent families | 8.7% | 2021 Census | 27th percentile nationally |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Group households | 3.1% | 2021 Census | 58th percentile nationally |
| Households at the 2021 Census | 568 | 2021 Census | |
| Estimated households | 589 | AreaSearch estimate, Aug 2026 | |
| Family households | 78.8% | 2021 Census | 80th percentile nationally |
| Average children per family | 1.5 per family | 2021 Census | 32nd percentile nationally |
As of the 2021 Census, the suburb of Seacombe Heights had 568 households. Based on population growth patterns, this has grown by approximately 3.7% to an estimated 589 households today.
The average household size in the suburb of Seacombe Heights is 2.6 people. This compares to 2.5 in Greater Adelaide and reflects the area's household composition mix.
Family households dominate at 78.8% of all households. Non-family households consist of lone person households (18.0%), group households (3.1%), and other household types (0.0%).
Of the 448 family households, couples with children account for 36.7% of all households, couples without children at home 32.5%, and single parent families 8.7%. This mix shapes local demand for schools, family services, and housing types.
Compared to Greater Adelaide, the suburb of Seacombe Heights shows distinct household patterns. Family households are notably over-represented at 78.8% (versus 68.6% in Greater Adelaide). Conversely, lone person households are under-represented at 18.0% compared to 27.7% in Greater Adelaide. This family-oriented profile influences local demand for family homes, schools, and children's services.
Families in the suburb of Seacombe Heights 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.
Marriage patterns reveal 53.6% of the adult population are currently married, while 32.8% have never married. This compares to 45.7% married and 36.4% never married across Greater Adelaide.
Single-person households represent 18.0% of all households in the suburb of Seacombe Heights, notably lower than the average for Greater Adelaide of 27.7%. This affects demand for smaller dwellings and single-person accommodation.
Group households (unrelated people sharing) account for 3.1% of households, slightly below the Greater Adelaide average of 3.7%.
The level of cultural diversity witnessed in Seacombe Heights was found to be above average when compared nationally for a number of language and cultural background related metrics.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Born overseas | 28.8% | 2021 Census | 61st percentile nationally |
| Speak another language at home | 19.7% | 2021 Census | 62nd percentile nationally |
| English only at home | 80.3% | 2021 Census | 37th percentile nationally |
| Australian citizens | 89.9% | 2021 Census | 75th percentile nationally |
| Born in Australia | 71.2% | 2021 Census | 38th percentile nationally |
| Aboriginal and Torres Strait Islander residents | 0.4% | 2021 Census | 16th percentile nationally |
Seacombe Heights was found to be more culturally diverse than the vast majority of local markets, with 28.8% of its population born overseas and 19.7% speaking a language other than English at home.
Christianity is the most commonly reported religion in Seacombe Heights, at 37.6% of people, although more residents (54.6%) reported no religion. However, the most apparent overrepresentation was in Hinduism, which comprises 3.1% of the population, compared to 2.8% across Greater Adelaide.
In terms of ancestry (country of birth of parents), the top three represented groups in Seacombe Heights are English, comprising 29.7% of the population, Australian, comprising 22.3% of the population, and Scottish, comprising 7.4% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: Hungarian is notably overrepresented at 0.5% of Seacombe Heights (vs 0.3% across Greater Adelaide), Polish at 1.2% (vs 1.0%) and German at 5.4% (vs 5.1%).
28.8% of the suburb of Seacombe Heights population was born overseas, compared to 28.7% across Greater Adelaide.
19.7% of the population in the suburb of Seacombe Heights speaks a language other than English at home, compared to 22.2% in Greater Adelaide.
0.4% of the suburb of Seacombe Heights population identifies as Australian Aboriginal, compared to 1.2% in Greater Adelaide.
89.9% of the suburb of Seacombe Heights population holds citizenship, compared to 86.3% in Greater Adelaide.
04Place
Housing, health, transport, local services and the reports on them.
Seacombe Heights is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Rented homes | 12.8% | 2021 Census | 8th percentile nationally |
| Owned outright | 38.1% | 2021 Census | 64th percentile nationally |
| Detached houses | 97.7% | 2021 Census | 91st percentile nationally |
| Median mortgage repayment | $1,850 a month | 2021 Census, monthly | 52nd percentile nationally |
| Owned with a mortgage | 49.0% | 2021 Census | 86th percentile nationally |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Semi-detached, terrace and townhouses | 2.3% | 2021 Census | 19th percentile nationally |
| Median weekly rent paid, 2021 Census | $380 | 2021 Census, weekly | 55th percentile nationally |
| Median rent as a share of median household income | 19.8% | 2021 Census, ratio calculated by AreaSearch | 42nd percentile nationally |
| Median mortgage repayment as a share of household income | 22.3% | 2021 Census, ratio calculated by AreaSearch | 34th percentile nationally |
| People per bedroom | 0.8 per bedroom | 2021 Census | 72nd percentile nationally |
In the suburb of Seacombe Heights, 38.1% of homes are owned outright, 49.0% are owned with a mortgage, and 12.8% are rented.
According to the latest data, 97.7% of dwellings in the suburb of Seacombe Heights are houses.
In the suburb of Seacombe Heights, 0.0% of dwellings are apartments or units, with an additional 2.3% being semi-detached dwellings.
Outright home ownership in the suburb of Seacombe Heights stands at 38.1%, compared to 32.1% in Greater Adelaide.
The median monthly mortgage repayment in the suburb of Seacombe Heights is $1,850, compared to $1,562 in Greater Adelaide.
The aggregate monthly housing cost in the suburb of Seacombe Heights is $1,117, which represents the average monthly cost across all housing types.
In the suburb of Seacombe Heights, households with mortgages typically spend 22.3% of their income on mortgage repayments, while renters spend 19.8% of their income on rent.
The average persons per bedroom ratio in the suburb of Seacombe Heights is 0.8, indicating the level of household density.
Housing affordability in the suburb of Seacombe Heights shows mortgage holders spending 22.3% of income on repayments (vs 23.3% in Greater Adelaide), while renters spend 19.8% of income on rent (vs 20.7% in Greater Adelaide).
The dwelling mix in the suburb of Seacombe Heights consists of 97.7% detached houses, 2.3% semi-detached dwellings, 0.0% apartments, and 0.0% other dwelling types.
Housing in Seacombe Heights consumes approximately 13.5% of median household income ($8,301 monthly), indicating costs are highly affordable. The generally accepted benchmark is that housing should not exceed 30% of household income.
Development activity remains minimal in this area with fewer than 5 recent applications recorded.
Seacombe Heights's residents are extremely healthy relative to locations nationally with both young and old age cohorts seeing low prevalence of common health conditions.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Private health cover | 55.1% | ATO FY 2024, private health cover | 58th percentile nationally |
| No long-term health condition | 72.0% | 2021 Census | 65th percentile nationally |
| Need help with daily activities | 3.7% | 2021 Census | 19th percentile nationally |
| No long-term health condition, under 65 | 78.7% | 2021 Census | 67th percentile nationally |
| Three or more long-term health conditions, under 65 | 0.7% | 2021 Census | 20th percentile nationally |
Around 55.1% of people in the suburb of Seacombe Heights are covered by private health insurance, which compares to 53.3% in Greater Adelaide.
In the suburb of Seacombe Heights, 3.7% of the population is identified as requiring ongoing medical assistance. By comparison, 6.6% of people in Greater Adelaide require similar assistance.
7.1% of people in the suburb of Seacombe Heights are diagnosed with asthma. In comparison, 7.7% of the population across Greater Adelaide is affected by asthma.
Diabetes affects 3.8% of the suburb of Seacombe Heights population, while in Greater Adelaide, 4.8% of people are diagnosed with diabetes.
4.3% of people in the suburb of Seacombe Heights have heart disease. Across Greater Adelaide,3.8% of the population is affected by heart disease.
In the suburb of Seacombe Heights, 55.1% of the population are estimated to have private health insurance. Comparatively, Greater Adelaide sees an estimated private health coverage rate of 53.3%.
Transport servicing is moderate compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Transport access | 57 out of 100 | AreaSearch transport analysis of timetable data | 57th percentile nationally |
| Public transport stops | 10 | Public transport timetable (GTFS) data, compiled by AreaSearch | 10th percentile nationally |
| Weekly public transport trips | 444 | Public transport timetable (GTFS) data, compiled by AreaSearch | 24th percentile nationally |
| People per public transport stop | 158 | Public transport timetable (GTFS) data, compiled by AreaSearch | |
| Public transport routes | 8 | Public transport timetable (GTFS) data, compiled by AreaSearch |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Vehicles per dwelling | 1.7 per dwelling | 2021 Census | |
| Working residents who worked from home | 11.8% | 2021 Census, taken during COVID-19 restrictions |
There are 10 public transport stops within the suburb of Seacombe Heights.
The suburb of Seacombe Heights has 444 weekly trips across 8 routes, averaging 63 trips per day.
On average, residential properties are 269 metres from the nearest transport stop.
From the typical resident, the nearest school is 513 m away and the nearest child care centre 548 m.
Distance from the typical resident to the nearest of each service. Every bar starts at 0 m. The nearest is orange.
Public transport 10 stops nearby, 444 weekly trips, access rating 57 out of 100.
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Amenity score | 49 out of 100 | AreaSearch proximity analysis | 49th percentile nationally |
| Nearest school | 513 m | AreaSearch proximity analysis, from the typical resident | |
| Nearest child care | 548 m | AreaSearch proximity analysis, from the typical resident | |
| Nearest pharmacy | 760 m | AreaSearch proximity analysis, from the typical resident | |
| Nearest supermarket | 768 m | AreaSearch proximity analysis, from the typical resident |
| Measure | Value | Source and date | National percentile |
|---|---|---|---|
| Nearest GP | 1.2 km | AreaSearch proximity analysis, from the typical resident | |
| Nearest dentist | 1.7 km | AreaSearch proximity analysis, from the typical resident | |
| Nearest bank | 1.8 km | AreaSearch proximity analysis, from the typical resident | |
| Nearest fitness centre | 1.9 km | AreaSearch proximity analysis, from the typical resident | |
| Nearest shopping centre | 2.0 km | AreaSearch proximity analysis, from the typical resident | |
| Nearest government service | 2.3 km | AreaSearch proximity analysis, from the typical resident | |
| Nearest hospital | 2.5 km | AreaSearch proximity analysis, from the typical resident |
Sector reports that go deeper on these services: child care, medical, retail, aged care and specialist disability accommodation (SDA). There is 1 long day care centre with 123 places in Seacombe Heights, about 0.7 children aged 0-4 per place.
Short silent previews of sample pages. Sector reports are ordered for a catchment you draw, not for the suburb as a whole.
05Reports and tools
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An area report on Seacombe Heights is built to order and emailed to you.
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06About this profile
Where the figures come from, downloads and nearby areas.
On AreaSearch's development drivers ranking, residential development activity is lower than average in Seacombe Heights compared with local real estate markets nationally.
Seacombe Heights has emerging levels of nearby infrastructure activity, ranking in the 32nd percentile nationally.
No headline figures are reported for this area.
Median rent in Seacombe Heights is $638 a week, +6.0% over 12 months to Jun 2026.
An assessment of population growth drivers in Seacombe Heights reveals an overall ranking slightly below national averages considering recent, and medium term trends.
Seacombe Heights's population is slightly older than the national pattern.
Income levels align closely with national averages, indicating typical economic conditions for Australian communities according to AreaSearch analysis.
AreaSearch analysis of employment trends sees Seacombe Heights performing better than 99% of local markets assessed across Australia.
Educational attainment in Seacombe Heights sits close to the middle of locations nationally, based on AreaSearch's ranking of qualification and performance metrics.
Seacombe Heights features high concentrations of couples without children and family households but relatively few lone person households, with a larger average household size than Greater Adelaide.
The level of cultural diversity witnessed in Seacombe Heights was found to be above average when compared nationally for a number of language and cultural background related metrics.
Seacombe Heights is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership.
Seacombe Heights's residents are extremely healthy relative to locations nationally with both young and old age cohorts seeing low prevalence of common health conditions.
Transport servicing is moderate compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility.
Amenity provision was found to be in line with the typical area assessed nationally by AreaSearch, based on counts and proximity analysis.
Seacombe Heights has an estimated 1,605 residents, up 3.6% since the 2021 Census, with 14 projects tracked in the area around Seacombe Heights.
Latest estimate as at Aug 2026; other figures from the 2021 Census, ATO FY-24 and AreaSearch estimates where labelled. Updated 15 Oct 2026.
Sources: ABS Census 2021, ABS estimated resident population, ATO taxation statistics, state rental bonds and property sales records where published, and AreaSearch analysis for Seacombe Heights.
Data currency
Refreshed . Rents to Jun 2026, population and age estimated to Aug 2026, taxable income FY 2024 and projects to Jul 2026. Housing, households and cultural diversity are from the 2021 Census (next update with the 2026 Census results).
Infrastructure projects and development applications also include sites in the surrounding area, and are labelled as such. Other sections were compiled 15 Oct 2026 from sources that update on their own cycles; "See the evidence" lists each source and its cycle.
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 a complete picture, consider both boundary types where available.
Main sources: ABS, Geoscience Australia, GNAF, ATO, State governments, Valuer General, Rental Board and Infrastructure Australia.
Cross-check us. The Census baseline for this boundary is at ABS 2021 Census QuickStats (SAL41314). QuickStats reports 2021 only; the figures on this page are more current wherever the ledger shows a later date.
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 and statistical reporting. Even when sharing the same name, SAL and SA2 boundaries often cover different geographic areas with different populations.
AreaSearch compiles this page from official and industry sources, including ABS, Geoscience Australia, GNAF, ATO, State governments, Valuer General, Rental Board and Infrastructure Australia, then calculates statistics for the boundary shown, and ranks, 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. Infrastructure projects and development applications also include sites in the surrounding area, labelled as such.
No. Most of this page is built beyond the Census. Dated for this area: population (Aug 2026), age profile (Aug 2026), infrastructure projects (Jul 2026) and income (FY 2024). Compiled with this profile from sources that publish on their own cycles: development and approvals, property sales and rents, employment, education, transport, health and services and amenities. Only housing, households and cultural diversity remain wholly Census-based, because no more current small-area dataset exists for those measures.
Key demographics and figures for Seacombe Heights from the 2021 Census, ATO taxpayer data and AreaSearch estimates and analysis. Each topic has its own table of key figures beside the section it belongs to, and each row names its source and date. The percentile compares Seacombe Heights with every neighbourhood-sized area across Australia (ABS SA2 areas): a higher percentile means more of that measure than most, not necessarily better.
Source: AreaSearch (areasearch.com.au) compiled from ABS Census 2021, ATO and other public sources.
