Isaacs
With 60.9% of residents holding university qualifications, Isaacs sits 30.8 points above the national figure, making it one of the most highly educated suburbs in the ACT. Household income is at the 94.5th percentile nationally, yet the estimated median house price of $690,000 is moderate by Canberra standards, partly because 52.1% of homes are owned outright by established, older residents. The median age of 49 is 9 years above the national median, reflecting a long-settled population with low turnover of 18.5%. These two signals together explain the suburb's trajectory: strong economic credentials, aging demographics, and steady rather than speculative property dynamics.
Population
2,379
Median Age
49.0
Household IncomeiMedian weekly household income (ABS Census)
$2,670/wk
DAs (12 months)iDevelopment Applications lodged in the past year
3
Median House
$690K
Estimated from rent (2025)
The estimated median house price of $690,000 places Isaacs below the ACT median for detached houses, offering relative value for a suburb in the 94.5th percentile for household income nationally. Separate houses dominate at 83.9% of dwellings and semi-detached properties account for the remaining 16.1%, with no meaningful apartment stock. Bedrooms skew large, with 56.8% of dwellings having 4 or more bedrooms and 37.9% having 3 bedrooms. Monthly mortgage repayments average $2,300, producing a mortgage-to-income ratio of 19.9%, comfortably below the 30% stress threshold. Outright ownership at 52.1% far exceeds the mortgage rate of 30.4%, indicating that most homes are held by long-term, debt-free owners rather than recent purchasers entering at peak prices.
For Buyers
The estimated median house price of $690,000 places Isaacs below the ACT median for detached houses, offering relative value for a suburb in the 94.5th percentile for household income nationally. Separate houses dominate at 83.9% of dwellings and semi-detached properties account for the remaining 16.1%, with no meaningful apartment stock. Bedrooms skew large, with 56.8% of dwellings having 4 or more bedrooms and 37.9% having 3 bedrooms. Monthly mortgage repayments average $2,300, producing a mortgage-to-income ratio of 19.9%, comfortably below the 30% stress threshold. Outright ownership at 52.1% far exceeds the mortgage rate of 30.4%, indicating that most homes are held by long-term, debt-free owners rather than recent purchasers entering at peak prices.
For Investors
Rental demand in Isaacs is thin relative to the suburb's size. Only 17.5% of residents rent, well below state and national averages, and the vacancy rate of 6.3% is elevated, signalling that available rental stock is not absorbing quickly. Weekly rent of $520 against an estimated $690,000 median implies a gross yield around 3.9%, modest but not unusual for an established Canberra suburb dominated by owner-occupiers. Development activity is low at 3 applications in the past 12 months, all alterations or lease variations rather than new dwellings. Annual population change runs at minus 0.29%, and medium forecasts project the population declining from around 2,402 to 2,315 by 2031. The investment case depends on the suburb's income profile and stability rather than growth in demand.
Development Activity
Total DAs
20
Last 12 Months
3
YoY ChangeiYear-over-year change in DA lodgements
0.0%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Demographics
Isaacs has a median age of 49, which is 9 years higher than the national median, driven by a senior share that grew 6.3 points over the decade while the working-age share fell 2.6 points. University qualifications at 60.9% are 30.8 points above national, among the highest in the ACT. Overseas-born residents make up 36.6% of the population, which is 15 points above the national figure. The top ancestries are English (696 residents), Irish (243) and Chinese (232), and the leading non-English languages are Mandarin (37 speakers) and Cantonese (28), consistent with the 36.6% born overseas. Couples without children account for 33.3% of families, a pattern typical of an aging suburb where children have grown and left. The volunteering rate of 21.9% is high and reflects the established, community-embedded nature of the resident base.
Age Distribution
Bedrooms
Dwelling Structure
83.9%
Houses
16.1%
Townhouse
N/A
Apartment
Tenure
Outright ownership at 52.1% is the dominant tenure mode, with only 30.4% of households carrying a mortgage and 17.5% renting. This tenure split points to long-held, debt-free wealth rather than a suburb driven by recent purchasers. Dwellings are overwhelmingly detached houses at 83.9%, with semi-detached at 16.1% and no significant apartment stock. Four-plus bedroom homes represent 56.8% of dwellings, above typical suburban norms, reflecting the large family-oriented housing that was built when the suburb was established. Monthly mortgage repayments average $2,300, producing a mortgage-to-income ratio of 19.9%, and rent averages $520 a week with a rent-to-income ratio of 19.5%, both well below stress thresholds. The vacancy rate of 6.3% is high compared to typical Canberra suburbs, which is consistent with the low renter share and limited demand-side pressure.
Mortgage / mo
$2,300
Rent / wk
$520
HH Size
2.5
Personal Income / wk
$1,307
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
6.3%
Unoccupied
61
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
19.5%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
19.9%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
33.3%
Couples, no children
1,980
Total families
Economy & Employment
Public administration dominates the local workforce at 35.2% of employed residents (320 workers), typical for a suburb drawing on Canberra's federal government base. Healthcare comes second at 17.7% (161 workers), followed by Professional and Technical Services at 12.7% (115 workers) and Education at 8.7% (79 workers). By occupation, Professionals (426) and Managers (227) together represent the largest groups, consistent with decile 10 IRSD and IRSAD scores, the highest advantage tier nationally. Unemployment stands at 4.6%, and the full-time employment rate is 70.1%. Participation at 55.3% is lower than income alone would predict, because the aging population leaves 809 residents not in the labour force. Real income growth of 16.9% over the decade reflects the high-skill workforce's wage trajectory.
Unemployment
3.1%
Labour Force
1,185
Unemployed
37
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
70.1%
Part-time
25.3%
Participation
55.3%
Employed
1,072
Occupations
Top Industries
University
60.9%
Postgraduate
24.9%
Born Overseas
36.6%
Dwellings
913
Transport to Work
Isaacs residents are heavily car-dependent, with 88.1% commuting as car drivers compared to 3.4% using public transport and 1.4% walking or cycling. This pattern is common across suburban Canberra due to limited frequent transit outside the light rail corridor. The suburb scores decile 10 on both IRSD and IRSAD, the highest advantage nationally, and decile 9 on IEO, indicating an exceptionally low-disadvantage environment. Household income sits at the 94.5th percentile nationally and housing stress is absent, with mortgage-to-income at 19.9% and rent-to-income at 19.5%. No schools are recorded within the suburb boundary in the dataset, so families rely on schools in adjacent suburbs such as Farrer, Torrens and Chifley. The need-for-assistance rate is 5.8% (134 residents), a figure that rises with the older age profile but remains manageable relative to the suburb's overall advantage profile.
Drive
88.1%
Public Transport
3.4%
Walk / Cycle
1.4%
Work from Home
N/A
Population Forecast
-0.29%/yr
(-7 people/yr)
EstablishedPopulation growth in Isaacs is effectively stagnant, with an annual change of minus 0.29% and a 10-year growth of just 1.1%. The medium forecast projects continued gradual decline from 2,402 residents in 2025 to 2,315 by 2031. Migration dynamics show net overseas arrivals averaging 24 per year while internal migration runs at minus 18, leaving a thin positive balance. The aging trajectory is the dominant structural trend, with the senior share rising 6.3 points and working-age share falling 2.6 points over the decade. Gentrification does not apply here, as the suburb is already at IRSD decile 10, the highest nationally, and the gentrification score reads not gentrifying. The turnover rate of 18.5% is relatively low, meaning most residents stay long term, which further dampens the pace of demographic change.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Balanced
Net Overseas / yr
+24
Net Internal / yr
-18
Gentrification Signal
Not gentrifying
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Isaacs compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Isaacs a good suburb to live in?
Isaacs ranks at IRSD and IRSAD decile 10, the highest advantage tier nationally, with household income at the 94.5th percentile. University qualifications reach 60.9%, which is 30.8 points above the national figure. The suburb is quiet and established, with low housing stress at a mortgage-to-income ratio of 19.9%, though car ownership is essentially required given a public transport usage rate of just 3.4%.
What is the median house price in Isaacs?
The estimated median house price is $690,000, based on 2025 rent data. Monthly mortgage repayments average $2,300, producing a mortgage-to-income ratio of 19.9%, well below stress levels. Weekly rent averages $520. Over 52.1% of homes are owned outright, indicating that most stock is held by long-term owner-occupiers.
What schools are in Isaacs?
No schools are recorded within the Isaacs boundary in this dataset. Families typically use schools in neighbouring suburbs including Farrer, Torrens and Chifley. The local population is highly educated, with 60.9% holding university qualifications, which is 30.8 points above the national average.
Is Isaacs safe?
Detailed crime statistics are not available for Isaacs in this dataset. As an indirect indicator, the suburb scores decile 10 on the IRSD index of relative disadvantage, the highest nationally, and household income is at the 94.5th percentile. These factors are generally associated with lower crime rates compared to less advantaged areas.
Is Isaacs good for property investment?
The investment outlook is cautious. Only 17.5% of residents rent and the vacancy rate is 6.3%, indicating weak rental demand relative to supply. A weekly rent of $520 against an estimated $690,000 median implies a gross yield around 3.9%. Population is forecast to decline from 2,402 in 2025 to around 2,315 by 2031, limiting demand-side growth drivers.
How is Isaacs's population changing?
Population growth is minus 0.29% annually, and the 10-year rise was just 1.1%, from 2,367 in 2023 to 2,402 in 2025. The medium forecast projects a decline to 2,315 by 2031. The suburb is aging, with the senior share rising 6.3 points and the working-age share falling 2.6 points over the decade.
What languages are spoken in Isaacs?
About 36.6% of residents were born overseas, which is 15 points above the national figure. The leading non-English languages are Mandarin (37 speakers) and Cantonese (28), with Malayalam (19), Greek (15) and Hindi (15) also present. The top ancestries are English, Irish and Chinese, reflecting a predominantly Anglo-Celtic base with a notable Asian-born cohort.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state Valuer-General (house prices), Department of Jobs SALM (unemployment), ACARA (school ICSEA), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
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