Flagstaff Hill

An assessment of population growth drivers in Flagstaff Hill reveals an overall ranking slightly below national averages considering recent, and medium term trends

Flagstaff Hill's population is approximately 11,230 as of February 2026. This figure represents an increase of 446 people, a 4.1% rise from the 2021 Census which recorded 10,784 residents. The change is inferred from the estimated resident population of 11,185 in June 2024 and additional validated new addresses since then. This results in a population density of 1,151 persons per square kilometer, comparable to averages observed across other locations assessed by AreaSearch. Flagstaff Hill's growth rate of 4.1% since the census is within 2.3 percentage points of the SA3 area's rate of 6.4%, indicating strong growth fundamentals. Overseas migration contributed approximately 71.4% of overall population gains in recent periods, driving primary growth.

AreaSearch uses 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, the SA State Government's Regional/LGA projections are adopted, based on 2021 data and adjusted using weighted aggregation methods from LGA to SA2 levels. By 2041, Flagstaff Hill is expected to grow by approximately 1,314 persons, reflecting an increase of around 11.3% over the 17-year period, based on the latest annual ERP population numbers.

Residential development activity is lower than average in Flagstaff Hill according to AreaSearch's national comparison of local real estate markets

Flagstaff Hill has recorded approximately 21 residential properties granted approval annually. Over the past five financial years, from FY-21 to FY-25, a total of 105 homes have been approved, with an additional 14 approved so far in FY-26. This results in an average of around 3.5 new residents per year for every home built during these years.

The demand for housing significantly outpaces supply, which typically puts upward pressure on prices and increases competition among buyers. New properties are constructed at an average expected cost value of $226,000, which is under regional levels, indicating more accessible housing choices for buyers. In terms of commercial development activity, approximately $2.3 million in approvals have been registered this financial year, suggesting minimal commercial development activity compared to Greater Adelaide. Flagstaff Hill has significantly less development activity, at 61.0% below the regional average per person. This scarcity of new dwellings typically strengthens demand and prices for existing properties.

Additionally, this activity is under the national average, indicating the area's established nature and suggesting potential planning limitations. Recent development in Flagstaff Hill has been entirely comprised of standalone homes, maintaining the area's traditional suburban character with a focus on family homes appealing to those seeking space. This is reflected by the figure of around 777 people per approval, indicating a mature, established area. According to the latest AreaSearch quarterly estimate, Flagstaff Hill is projected to add approximately 1,269 residents by 2041. Should current construction levels persist, housing supply could lag population growth, likely intensifying buyer competition and underpinning price growth.

Flagstaff Hill has limited levels of nearby infrastructure activity, ranking in the 6thth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch identified twelve projects likely influencing the region. Notable ones include Living Choice Flagstaff Hill, Flagstaff Hill Reserve Revegetation Project, Flinders Medical Centre Southern Redevelopment Stage 1 (Acute Services Building), and Urban Creek Resilience and Recovery Project - Sauerbier and Homestead Creeks. 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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The exceptional employment performance in Flagstaff Hill places it among Australia's strongest labour markets

Flagstaff Hill has a well-educated workforce with significant representation in essential services sectors. The unemployment rate was 1.6% as of September 2025, showing an employment growth of 3.4% over the past year. In comparison to Greater Adelaide's unemployment rate of 3.9%, Flagstaff Hill's rate is 2.3% lower.

Workforce participation in Flagstaff Hill is 70.8%, slightly higher than Greater Adelaide's 66.4%. According to Census responses, 12.3% of residents work from home. Employment is concentrated in health care & social assistance, education & training, and retail trade. Education & training has particularly notable concentration with employment levels at 1.3 times the regional average.

Manufacturing employs only 5.8% of local workers, below Greater Adelaide's 7.0%. The predominantly residential area appears to offer limited local employment opportunities, indicated by the count of Census working population versus resident population. In the 12-month period ending in September 2025, employment increased by 3.4%, while labour force increased by 3.3%, keeping unemployment broadly flat at 1.6%. By comparison, Greater Adelaide recorded employment growth of 3.0%, labour force growth of 2.9%, and a fall in unemployment by 0.1 percentage points to 3.8%. Jobs and Skills Australia's national employment forecasts from May-25 project national employment expansion by 6.6% over five years and 13.7% over ten years. Applying these projections to Flagstaff Hill's employment mix suggests local employment should increase by 6.8% over five years and 14.1% over ten years, though these are simple weighted extrapolations for illustrative purposes and do not account for localized population projections.

Income analysis reveals strong economic positioning, with the area outperforming 60% of locations assessed nationally by AreaSearch

Flagstaff Hill SA2 had a median income among taxpayers of $55,688 and an average level of $64,667 in the financial year 2023. This was below the national average, with Greater Adelaide having levels of $54,808 and $66,852 respectively. By September 2025, estimated median income would be approximately $60,589 and average income $70,358, based on Wage Price Index growth of 8.8% since financial year 2023. Census data shows household, family, and personal incomes in Flagstaff Hill cluster around the 62nd percentile nationally. The income bracket of $1,500 - 2,999 dominates with 36.5% of residents (4,098 people), reflecting patterns seen in the region where 31.8% similarly occupy this range. After housing costs, residents retain 88.2% of income, indicating strong purchasing power. The area's SEIFA income ranking places it in the 6th decile.

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

Flagstaff Hill's dwelling structures, as per the latest Census data, consisted of 95.2% houses and 4.8% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Adelaide metro's figures of 75.2% houses and 24.9% other dwellings. Home ownership in Flagstaff Hill stood at 38.8%, with mortgaged dwellings at 49.3% and rented ones at 11.9%. The median monthly mortgage repayment was $1,733, higher than Adelaide metro's average of $1,562. Median weekly rent in Flagstaff Hill was recorded at $375, compared to Adelaide metro's $320. Nationally, Flagstaff Hill's mortgage repayments were lower than the Australian average of $1,863, while rents were comparable at $375.

Flagstaff Hill features high concentrations of family households, with a higher-than-average median household size

Family households account for 81.8 percent of all households, consisting of 39.2 percent couples with children, 33.0 percent couples without children, and 8.9 percent single parent families. Non-family households make up the remaining 18.2 percent, with lone person households at 16.1 percent and group households comprising 2.1 percent of the total. The median household size is 2.7 people, larger than the Greater Adelaide average of 2.5.

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

Educational attainment in Flagstaff Hill is notable with 30.5% of residents aged 15 years and over holding university qualifications, surpassing the broader benchmark of 18.9%. This indicates a significant educational advantage for the area, positioning it well for knowledge-based opportunities. Bachelor degrees are most prevalent at 20.4%, followed by postgraduate qualifications (6.7%) and graduate diplomas (3.4%). Vocational credentials are also prominent with 35.0% of residents aged 15 years and over holding such qualifications, including advanced diplomas (12.0%) and certificates (23.0%).

Educational participation is high in the area, with 27.6% of residents currently enrolled in formal education. This includes 9.5% in primary education, 7.1% in secondary education, and 6.2% pursuing tertiary education.

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

Flagstaff Hill has 44 active public transport stops, all serving buses. These stops are covered by 33 different routes, collectively offering 1,460 weekly passenger trips. Residents' access to transport is rated as good, with an average distance of 325 meters to the nearest stop. Most residents commute outwards from this primarily residential area, with cars being the dominant mode at 89%. The average vehicle ownership per dwelling is 1.8, above the regional average. According to the 2021 Census, only 12.3% of residents work from home, which may reflect COVID-19 conditions.

On average, there are 208 trips per day across all routes, equating to approximately 33 weekly trips per individual stop.

The level of general health in Flagstaff Hill is notably higher than the national average with both young and old age cohorts seeing low prevalence of common health conditions

Flagstaff Hill shows superior health outcomes according to AreaSearch's evaluation of mortality rates and chronic condition prevalence.

Both young and elderly cohorts exhibit low prevalence of common health conditions. Private health cover is relatively low at approximately 51% of the total population (~5749 people). The most prevalent medical conditions are arthritis and mental health issues, affecting 7.8 and 7.7% of residents respectively. 69.2% of residents report being completely free from medical ailments, compared to 67.9% across Greater Adelaide. Under-65s have better than average health outcomes. The area has 21.3% of residents aged 65 and over (2396 people), higher than the 19.3% in Greater Adelaide. Health outcomes among seniors are notably strong, with national rankings even higher than those of the general population.

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

Flagstaff Hill, surveyed in August 2021, showed higher cultural diversity than most local areas. 14.4% spoke a language other than English at home, and 28.6% were born overseas. Christianity was the predominant religion, accounting for 42.7%.

Judaism, however, was slightly overrepresented at 0.2%, compared to Greater Adelaide's 0.1%. In terms of ancestry (parental country of birth), the top groups were English (32.4%), Australian (23.8%), and Other (7.4%). Notable differences existed for Welsh (0.9% vs regional 0.6%), Polish (1.2% vs 1.0%), and German (5.8% vs 5.1%) groups.

Flagstaff Hill's median age exceeds the national pattern

Flagstaff Hill has a median age of 42, which is higher than Greater Adelaide's figure of 39 and the national norm of 38. The 75-84 age group makes up 8.2% of Flagstaff Hill's population, compared to Greater Adelaide, while the 25-34 cohort comprises 9.9%. According to the 2021 Census, the 75 to 84 age group has increased from 5.7% to 8.2%, the 45 to 54 group has decreased from 14.0% to 12.7%, and the 65 to 74 group has fallen from 12.3% to 11.2%. By 2041, demographic modeling indicates significant changes in Flagstaff Hill's age profile. The 85+ group is projected to grow by 157%, adding 328 people to reach 537 from 208. The 65 to 74 group is expected to show minimal growth, with an increase of only 3 residents.