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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.
est. as @ -- *
2021 Census | -- people
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Klemzig has an estimated 6,627 residents, down from 6,713 at the 2021 Census — a change of 86 people, or 1.3%. The population has thinned by an average 0.5% a year over five years, slower than 96% of areas nationally. That puts 2,640 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
According to investigations of ABS population updates for the wider region and new addresses validated by AreaSearch since the Census, the resident count of Klemzig is estimated to be approximately 6,627 as of May 2026. This represents a drop of 86 individuals (1.3%) compared to the 2021 Census, which counted 6,713 individuals. This shift is deduced from a resident population of 6,611, estimated by AreaSearch using the ABS ERP data release from June 2025 and 30 validated new addresses added after the Census date. The suburb of Klemzig has a density ratio of 2,640 persons per square kilometer, placing it in the top quarter of national locations analysed by AreaSearch.
Overseas migration was the primary driver of population growth, accounting for approximately 74.0% of recent population increases. AreaSearch utilizes ABS/Geoscience Australia projections for each SA2 region, which were published in 2024 using 2022 as the baseline year. For SA2 regions lacking this data, and for any years after 2032, regional and LGA projections by age category from the SA State Government (released in 2023 based on 2021 data) are applied, utilizing weighted aggregation of population growth from LGA to SA2 levels. Based on these projected demographic trends, population growth in the suburb of Klemzig is expected to exceed the median of areas analysed by AreaSearch, with the suburb of Klemzig projected to add 876 residents by 2041, representing a total increase of 13.0% over the 16 years.
Frequently Asked Questions - Population
173 new dwellings have been approved in Klemzig over the past five years, an average of 34 a year. That is 5.1 approvals per 1,000 residents. Of the 35 dwellings approved in the latest reporting year, 89% were detached houses and the rest townhouses or apartments. Approvals are currently running at an annualised 7, 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
Analysis of ABS building approvals allocated from statistical area data indicates that Klemzig averages about 34 residential approvals annually, with a total of 173 homes approved over the last 5 financial years. Thus far in FY-26, 7 approvals have been logged. As the population has been shrinking recently, this new supply has likely met local demand, providing buyers with options, while new dwellings carry an average construction value of $379,000, showing that builders are focusing on the higher-end market. Furthermore, $7.3 million in commercial approvals have been registered during this financial year, which highlights the residential nature of the suburb.
Relative to Greater Adelaide, Klemzig has approximately two-thirds the rate of new dwelling approvals per capita, ranking in the 60th percentile of areas evaluated nationwide. Recent building activity consists of 89.0% detached houses and 11.0% apartments or townhouses, preserving the suburban character of the area through a focus on detached homes for buyers seeking more space. Interestingly, the proportion of traditional houses being built is higher than the existing mix recorded at the Census (68.0%), pointing to sustained interest in family properties. The area features about 250 residents for every residential approval, pointing to a low-density market environment. Demographic projections indicate Klemzig will add 860 residents by 2041, based on the most recent quarterly estimate from AreaSearch. Current levels of construction appear to align with future requirements, supporting balanced market conditions without significant price pressure.
Frequently Asked Questions - Development
Development applications around Klemzig
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| Lodged | Address | Description | Type | Distance | Status |
|---|
SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.
AreaSearch tracks 2 current infrastructure and development projects inside Klemzig, worth an estimated $46 million. A further 6 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $62 million. 4 are already under construction. The pipeline spans sports & recreation, residential development and education & training. 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 updates, planning initiatives, and major developments have a significant impact on local performance. AreaSearch has identified a total of 5 projects likely to influence the area. Prominent developments include the final stages of Lochiel Park Green Village, the Klemzig Interchange Upgrade, the Klemzig Village Shopping Centre Expansion & Refurbishment, and the River Torrens Linear Park Trail Upgrade - Klemzig Section, with key details provided below.
Professional plan users can use the search below to filter and access additional projects.
INFRASTRUCTURE SEARCH
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Frequently Asked Questions - Infrastructure
Klemzig Interchange Upgrade
Major upgrade of the Klemzig O-Bahn guided busway interchange including new sheltered waiting areas, improved accessibility, real-time passenger information, and enhanced park 'n' ride facilities, completed in 2021.
Lochiel Park
Completed 15 hectare sustainable residential village developed by Renewal SA on the former Lochiel Park education site, about 8 km from the Adelaide CBD. The project created an award-winning green village with over 100 dwellings, parkland, wetlands, recycled stormwater systems, solar technologies and high-efficiency homes, including South Australia's first zero-carbon home.
East Marden Primary School Major Upgrades
East Marden Primary School is undergoing a facility upgrade, including a new administration building with reception/foyer, leadership offices, meeting rooms, staff preparation space, a staff room, and unisex staff and student amenities. Additionally, two new buildings will comprise general learning areas, withdrawal areas, teacher preparation space, and unisex student amenities. The project also involves the demolition of ageing infrastructure. Project budget is $8.91 million.
Broad Street Reserve Playground Upgrade
The City of Norwood Payneham & St Peters Council is upgrading the playground equipment at Broad Street Reserve, Marden, to create a more enjoyable and accessible play space for the community. The project cost is $120,000.
Chain of Trails Master Plan
A strategic master plan endorsed by the City of Campbelltown in 2014 to guide staged upgrades to around 10 km of creek line trails along Third, Fourth and Fifth Creeks, creating a safer and more accessible trail network from the foothills to the River Torrens Linear Park. The plan addresses existing conditions, access and safety issues, proposing new alignments, materials, furniture, biodiversity improvements, and upgraded signage. Implementation continues through multiple staged projects; the Fourth Creek Morialta Parri Trail upgrade at Denis Morrissey Park, Hectorville, was officially launched in February 2024, co-funded by the SA Government Planning and Development Fund Open Space Grant Program ($225,000).Further works are funded through Councils open space strategy and annual business plans.
Felixstow Intergenerational Community
A six-storey intergenerational community with retirement, aged care, disability, family housing and build-to-rent apartments.
Marden Connect Development
The Marden Connect development by Qattro involves the replacement of ageing medium density public housing stock with contemporary medium to high-density housing, comprising 170 dwellings, with 66 designated as affordable homes through the State Government's Affordable Homes Program. The project also incorporates Water Sensitive Urban Design (WSUD) principles.
Campbelltown RSL Development
Redevelopment of Campbelltown RSL facilities including modern club amenities, function spaces, dining facilities, and community meeting rooms. The project enhances services for veterans and the local community with contemporary facilities and improved accessibility.
3,489 residents of Klemzig are employed, from a labour force of 3,601. Unemployment sits at 3.1%, with participation at 64.6%. Weighted for its industry mix, the area's sectors are forecast to grow about 6.9% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. The working-day population is estimated at 5,126, about 77% 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
Klemzig has a workforce with high levels of education and strong representation in essential services, alongside an unemployment rate of just 3.1%, according to statistical area data compiled by AreaSearch. In March 2026, 3,489 residents were employed, and the unemployment rate was 0.7% lower than the Greater Adelaide rate of 3.8%. Workforce participation was slightly lower than the benchmark, standing at 64.6% compared to 66.6% in Greater Adelaide. Census data showed that a low proportion of residents (10.4%) worked from home, though this may have been influenced by COVID-19 restrictions.
The primary employment sectors for local residents are health care & social assistance, education & training, and retail trade. Conversely, construction is underrepresented, employing only 6.3% of Klemzig's workforce compared to 8.7% in Greater Adelaide. The heavily residential nature of the area suggests local employment opportunities are limited, as shown by comparing Census working population numbers to the resident population. According to AreaSearch analysis of SALM and ABS data for wider statistical areas, the labour force shrank by 1.0% and employment fell by 1.5% during the year ending March 2026, leading to a 0.5 percentage point increase in unemployment. In contrast, Greater Adelaide saw employment grow by 4.2%, the labour force expand by 4.0%, and unemployment decrease by 0.2 percentage points. National employment forecasts from Jobs and Skills Australia published in May-25 provide context for future local demand. These five and ten-year projections have been applied to the local workforce structure to model potential growth. Nationwide employment is projected to grow by 6.6% over five years and 13.7% over ten years, though individual industries vary. Weighting these projections against Klemzig's employment distribution suggests local employment could grow by 6.9% over five years and 14.3% over ten years, assuming a simple weighting extrapolation that does not incorporate local population projections.
Frequently Asked Questions - Employment
Median household income in Klemzig is $1,488 a week (about $77,000 a year), with median personal income at $769 a week. ATO records put median taxable income at $51,027 a year against an average of $57,497. 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
The most recent postcode-level ATO statistics from AreaSearch for financial year 2023 show that incomes in Klemzig are below the national average, with a median of $51,027 and an average of $57,497. In comparison, Greater Adelaide recorded a median income of $54,808 and an average of $66,852. Factoring in Wage Price Index growth of 10.17% since financial year 2023, current estimates would be approximately $56,216 for the median and $63,344 for the average as of March 2026. According to Census data, Klemzig ranks modestly for household, family, and personal incomes, placing between the 35th and 42nd percentiles.
The data indicates that 33.4% of the population (2,213 individuals) earn between $1,500 and $2,999, mirroring the metropolitan area where 31.8% of the population fall into this bracket. Housing affordability presents a significant challenge, with only 83.5% of income remaining after housing costs, ranking in the 34th percentile, while the SEIFA income index places the area in the 5th decile.
Frequently Asked Questions - Income
Klemzig had 2,718 occupied dwellings at the 2021 Census, 68% detached houses and 18% apartments. 31% are owned with a mortgage, 42% rented and 27% owned outright. At that Census the median rent was $300 a week and the median mortgage repayment $1,684 a month. Rent absorbs 20.2% of household income here and mortgage repayments 26.1%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.
Detail
Residential structure in Klemzig at the last Census consisted of 68.3% houses and 31.7% other housing types like semi-detached properties, units, and alternative dwellings, compared to 75.2% houses and 24.9% other dwellings in metropolitan Adelaide. Home ownership in Klemzig lagged behind the metropolitan average, standing at 27.0%, while the remaining properties were mortgaged (30.7%) or rented (42.3%). The median monthly mortgage payment was higher than the Adelaide metropolitan average at $1,684, whereas the median weekly rent was $300, compared to metropolitan figures of $1,562 and $320. Nationally, Klemzig's mortgage repayments are below the Australian average of $1,863, and weekly rents are considerably lower than the national figure of $375.
Frequently Asked Questions - Housing
Klemzig counted 2,718 households at the 2021 Census, averaging 2.3 people each. 28% are couples with children, against 24% couples without children. 32% of households are people living alone, and families average 1.3 children. Household and family composition is measured only by the Census, so these are 2021 figures.
Detail
Families make up 62.4% of all households, consisting of 27.7% couples with children, 23.9% couples without children, and 9.2% single-parent households. Non-family households account for the remaining 37.6%, with single-person households representing 32.2% and group households making up 5.6% of the total. The median household size of 2.3 individuals is smaller than the Greater Adelaide average of 2.5.
Frequently Asked Questions - Households
41.3% of adults in Klemzig hold a university qualification, including 25.3% with a bachelor degree and 12.9% with postgraduate qualifications. A further 15.6% hold a vocational qualification. 1 school serves the area, with 192 enrolment places and an average ICSEA of 1,035 against a national benchmark of 1,000. Qualifications come from the 2021 Census; school enrolments, ICSEA and results come from ACARA's current release.
Detail
Academic achievement in Klemzig is higher than regional benchmarks, with 41.3% of residents aged 15+ holding a university degree, compared to 19.8% in the SA4 region and 25.7% statewide. This high concentration of tertiary education positions the local workforce well for knowledge-intensive roles. Bachelor degrees are the most common at 25.3%, followed by postgraduate degrees (12.9%) and graduate diplomas (3.1%). Vocational and technical education is also common, with 25.8% of residents aged 15+ holding trade credentials, consisting of advanced diplomas (10.2%) and certificates (15.6%). Participation in study is high, with 28.9% of the population currently enrolled in education.
This group includes 8.7% in higher education, 8.4% in primary school, and 4.3% attending secondary school.
Frequently Asked Questions - Education
Schools Detail
Public transport in Klemzig reaches 35 stops on 56 routes, timetabled for about 3,500 services a week. The typical home sits about 220 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.1 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 transport data shows 35 active transit stops in Klemzig, consisting of bus services. These stops serve 56 routes, providing a total of 3,532 weekly passenger trips. Transport access is rated as good, with residents living an average of 219 meters from their nearest stop. Because Klemzig is primarily residential, most workers commute out of the suburb, with private cars being the main transport mode at 78% and buses at 17%. Vehicle ownership stands at 1.1 per household, below the regional average. A relatively low 10.4% of residents worked from home, based on the 2021 Census, which may reflect the pandemic context.
Services average 504 daily trips across all routes, which translates to roughly 100 weekly trips per active stop.
Frequently Asked Questions - Transport
Transport Stops Detail
72.0% of residents in Klemzig report no long-term health condition. 7.4% need daily assistance with core activities, and 49.8% hold private health cover. The standardised death rate runs at 5.8 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.
Detail
Health metrics point to below-average outcomes in Klemzig according to AreaSearch's evaluation of mortality and chronic disease rates, although the prevalence of general health issues is standard, despite being higher than the national average for older groups. Private health insurance coverage is relatively low, held by approximately 50% of the population (~3,297 people), compared to 52.7% in Greater Adelaide and a national average of 55.7%. The most prevalent health issues locally are mental health conditions and arthritis, affecting 8.5% and 8.0% of residents. Meanwhile, 72.0% of residents reported having no long-term health conditions, compared to 67.9% across Greater Adelaide.
Working-age residents show good health profiles with low rates of chronic illness. Residents aged 65 and older make up 17.2% of the population (1,139 people), which is lower than the 19.2% average in Greater Adelaide. Senior health outcomes present some challenges, though they rank more favorably nationally than the local population as a whole.
Frequently Asked Questions - Health
42.3% of Klemzig residents were born overseas and 42.7% speak a language other than English at home, more culturally diverse than 85% of areas nationally. The largest reported ancestries are English (18.6%) and Australian (16.8%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.
Detail
Klemzig has a high level of cultural diversity, with 42.3% of the population born outside Australia and 42.7% speaking a non-English language at home. Christianity is the most common religion, representing 42.2% of residents. Hinduism is notably overrepresented, accounting for 11.7% of the population, which is much higher than the Greater Adelaide average of 2.8%. Looking at parent birthplaces, the most common ancestries in Klemzig are English at 18.6% (lower than the regional average of 27.8%), Australian at 16.8% (lower than the regional average of 22.8%), and Other at 14.7% (higher than the regional average of 9.7%).
There are also notable differences in other backgrounds, with Italian ancestry representing 9.7% of Klemzig (compared to 5.2% regionally), Indian at 8.5% (compared to 2.3%), and Polish at 1.2% (compared to 1.0%).
Frequently Asked Questions - Diversity
The median resident of Klemzig is 36. 30.3% 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 36 years in Klemzig is slightly below the Greater Adelaide average of 39 and the national median of 38. Compared to Greater Adelaide, Klemzig has a larger share of residents aged 25 - 34 (19.5%) and a smaller share aged 65 - 74 (7.4%). Since the 2021 Census, the 35 to 44 age cohort has increased from 16.0% to 17.1% of the population, while the 0 to 4 group has decreased from 6.7% to 5.7%. By 2041, demographic shifts will alter the age profile, with the 45 to 54 group projected to grow by 30% (206 people), rising from 675 to 882, while the 5 to 14 group is expected to grow by 1%, adding just 6 residents.
Frequently Asked Questions - Age
Data & MethodBoundaries, Sources & Method for Klemzig
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, State agencies, Local governments Daily | May 2026 3 months ago all 4 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 — 30 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (6,713 at the 2021 Census → 6,627 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 (SAL40703). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.