Isabella Plains

Isabella Plains has shown very soft population growth performance across periods assessed by AreaSearch

As of Feb 2026, the population of Isabella Plains is estimated at around 4,276, a decrease of 53 people (1.2%) since the 2021 Census which reported a population of 4,329. This estimate is based on AreaSearch's validation of new addresses following examination of the latest ERP data release by the ABS in June 2024 and an additional validated new address since the Census date. The suburb's population density is 1,710 persons per square kilometer, above the average seen across national locations assessed by AreaSearch. While Isabella Plains experienced a 1.2% decline since census, the SA3 area achieved 0.1% growth, indicating divergent population trends. Natural growth contributed approximately 65.0% of overall population gains during recent periods. AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022.

For areas not covered by this data and years post-2032, age group growth rates from the ACT Government's SA2 area projections are adopted, using 2022 as a base year. Considering projected demographic shifts, lower quartile growth is anticipated for Australian statistical areas. The suburb is expected to expand by 57 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 1.3% in total over the 17 years.

The level of residential development activity in Isabella Plains is very low in comparison to the average area assessed nationally by AreaSearch

AreaSearch analysis of ABS building approval numbers in Isabella Plains shows approximately one new home approved annually over the past five financial years, totalling about five homes. In FY26 so far, one approval has been recorded. The area's population decline suggests that new supply has likely kept pace with demand, offering buyers good choice.

This year, $67,000 in commercial approvals have been registered, indicating the area's residential nature. Compared to the Australian Capital Territory average, Isabella Plains shows significantly reduced construction, 90.0% below the regional per capita average, which typically reinforces demand and pricing for existing homes. The area is also under the national average, suggesting its established nature and potential planning limitations. Recent building activity consists entirely of standalone homes, maintaining the area's traditional suburban character with a focus on family homes appealing to those seeking space. Developers are building more traditional houses than the current mix suggests, indicating strong demand for family homes.

Isabella Plains has about 4270 people per approval, indicative of a mature, established area. Looking ahead, AreaSearch estimates the area's population will grow by 57 residents by 2041. At current development rates, housing supply may struggle to match population growth, potentially heightening buyer competition and supporting price increases.

Isabella Plains has moderate levels of nearby infrastructure activity, ranking in the top 50% nationally

Five projects identified by AreaSearch are expected to impact the area significantly. These include Tuggeranong Public Housing Development, Canberra Light Rail Stage 4 from Woden to Tuggeranong, Banks Gateway Estate, and Dairy Farmers Hill Precinct at 1 Dairy Road. The following list details those most relevant.

Professional plan users can use the search below to filter and access additional projects.

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Employment conditions in Isabella Plains remain below the national average according to AreaSearch analysis

Isabella Plains has a skilled workforce with essential services sectors well represented. The unemployment rate was 5.1% in the past year, with an estimated employment growth of 1.2%. As of September 2025, there are 2,288 residents employed, and the unemployment rate is 4.7%, compared to the Australian Capital Territory's (ACT) rate of 3.6%.

The workforce participation rate is similar to ACT's at 72.5%. According to Census responses, 9.5% of residents work from home. Employment is concentrated in public administration & safety, health care & social assistance, and construction. Construction employment is particularly high, with a share of 1.5 times the regional level.

Professional & technical services employ only 7.1% of local workers, below ACT's 11.1%. The area offers limited local employment opportunities, indicated by the Census working population count vs resident population. In the 12-month period ending May-25, employment increased by 1.2%, while the labour force grew by 1.3%, keeping unemployment broadly flat at 4.7%. Nationally, employment is forecast to grow by 6.6% over five years and 13.7% over ten years. Applying these projections to Isabella Plains' employment mix suggests local employment should increase by 6.5% over five years and 13.3% over ten years.

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

AreaSearch's latest postcode level ATO data for financial year 2023 shows that income in Isabella Plains is higher than average nationally. The median income is $64,002 and the average income stands at $70,933. This contrasts with Australian Capital Territory's figures of a median income of $72,206 and an average income of $85,981. Based on Wage Price Index growth of 9.26% since financial year 2023, current estimates would be approximately $69,929 (median) and $77,501 (average) as of September 2025. According to the 2021 Census, household, family and personal incomes in Isabella Plains rank highly nationally, between the 74th and 85th percentiles. The earnings profile shows that 36.0% of locals (1,539 people) earn within the $1,500 - 2,999 weekly category, similar to the metropolitan region where 34.3% occupy this range. A significant 31.4% earn above $3,000 weekly. Housing accounts for 14.5% of income and strong earnings rank residents within the 76th percentile for disposable income. The area's SEIFA income ranking places it in the 6th decile.

Isabella Plains is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

The latest Census showed that in Isabella Plains, 75.5% of dwellings were houses, with the remaining 24.5% being semi-detached homes, apartments, or other types. In comparison, across the Australian Capital Territory (ACT), 63.3% of dwellings were houses and 36.7% were other types. Home ownership in Isabella Plains stood at 29.3%, with mortgaged properties making up 50.4% and rented dwellings accounting for 20.3%. The median monthly mortgage repayment in the area was $1,880, below the ACT average of $2,080. The median weekly rent figure in Isabella Plains was $450, matching the ACT's figure but higher than the national average of $375. Nationally, Isabella Plains' mortgage repayments were slightly above the Australian average of $1,863.

Isabella Plains has a typical household mix, with a higher-than-average median household size

Family households constitute 74.3% of all households, including 35.5% couples with children, 24.4% couples without children, and 13.2% single parent families. Non-family households comprise the remaining 25.7%, with lone person households at 23.3% and group households making up 2.3%. The median household size is 2.6 people, larger than the Australian Capital Territory average of 2.5.

The educational profile of Isabella Plains exceeds national averages, with above-average qualification levels and academic performance metrics

The area's university qualification rate is 26.3%, significantly lower than the SA4 region average of 46.8%. Bachelor degrees are most prevalent at 17.7%, followed by postgraduate qualifications (5.7%) and graduate diplomas (2.9%). Vocational credentials are held by 36.2% of residents aged 15+, including advanced diplomas (12.1%) and certificates (24.1%). Educational participation is high, with 29.2% currently enrolled in formal education: primary (10.7%), secondary (7.2%), and tertiary (4.6%).

Educational participation is notably high, with 29.2% of residents currently enrolled in formal education. This includes 10.7% in primary education, 7.2% in secondary education, and 4.6% pursuing tertiary education.

Transport servicing is high compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

Isabella Plains has 24 operational public transport stops, all of which are bus stops. These stops are served by a total of 52 different routes, facilitating 3032 weekly passenger trips combined. The area's transport accessibility is deemed good, with residents on average living 226 meters away from the nearest stop. Most residents in this predominantly residential zone commute outwards, primarily by car at a rate of 93%. Bus usage stands at 5%, and vehicle ownership averages 1.6 per dwelling, surpassing the regional norm. According to the 2021 Census, only 9.5% of residents work from home, possibly due to COVID-19 conditions.

Across all routes, an average of 433 trips are made daily, equating to approximately 126 weekly trips per individual stop.

Health performance in Isabella Plains is lower than average with common health conditions somewhat prevalent across both younger and older age cohorts

Isabella Plains faces significant health challenges based on AreaSearch's assessment. Mortality rates and chronic condition prevalence are high across both younger and older age cohorts.

Private health cover is very high at approximately 55% of the total population (~2,360 people), compared to 62.4% in Australian Capital Territory. The most common medical conditions are asthma (9.3%) and mental health issues (9.2%). However, 67.1% of residents declare themselves completely clear of medical ailments, compared to 70.2% across Australian Capital Territory. Working-age residents show an above-average prevalence of chronic health conditions. The area has 17.2% of residents aged 65 and over (735 people), higher than the 14.3% in Australian Capital Territory. Health outcomes among seniors present some challenges, with national rankings broadly in line with the general population.

The level of cultural diversity witnessed in Isabella Plains was found to be slightly above average when compared nationally for a number of language and cultural background related metrics

Isabella Plains had a higher cultural diversity than most local markets, with 23.6% of its population born overseas and 20.8% speaking a language other than English at home. Christianity was the predominant religion in Isabella Plains, comprising 47.8% of the population. The category 'Other' was notably overrepresented in Isabella Plains compared to Australian Capital Territory, with 2.3% versus 1.4%.

For ancestry, the top three groups were Australian (26.1%), English (25.6%), and Other (9.5%). Some ethnic groups showed significant differences: Spanish was overrepresented at 0.9%, Serbian at 0.7%, and Macedonian at 0.5% compared to regional averages of 0.5%, 0.4%, and 0.2% respectively.

Isabella Plains's population is slightly younger than the national pattern

Isabella Plains has a median age of 36 years, nearly matching the Australian Capital Territory average of 35 but younger than Australia's average of 38 years. Compared to the Australian Capital Territory, Isabella Plains has a higher proportion of residents aged 55-64 (11.8%) but fewer residents aged 15-24 (10.5%). Between the 2021 Census and the present, the proportion of residents aged 65-74 has increased from 7.5% to 9.7%, while the proportion of residents aged 75-84 has risen from 4.3% to 5.9%. Conversely, the proportion of residents aged 25-34 has declined from 15.9% to 14.5%, and the proportion of residents aged 55-64 has decreased from 13.0% to 11.8%. Population forecasts for 2041 indicate significant demographic changes in Isabella Plains, with the strongest projected growth in the 65-74 age group (20%), adding 84 residents to reach a total of 499. Residents aged 65 and above are expected to drive 67% of population growth, highlighting trends towards an aging demographic. Conversely, population declines are projected for the 35-44 and 0-4 age cohorts.