Seacombe Gardens
At a median age of 35, Seacombe Gardens skews 5 years younger than the national figure, which aligns with its renter-majority profile: 43.7% of households rent, well above the national average. University qualifications stand at 41.9%, some 11.8 percentage points above the national rate, and 36.7% of residents were born overseas, which is 15.1 points higher than nationally. Healthcare employs 30.8% of the local workforce, a concentration that shapes both income patterns and daily commute rhythms across this compact 0.99 km2 suburb.
Population
3,373
Median Age
35.0
Household IncomeiMedian weekly household income (ABS Census)
$1,420/wk
DAs (12 months)iDevelopment Applications lodged in the past year
32
Median House
$977K
First quarter 2026
Stock splits between 57.1% separate houses and 42.2% semi-detached dwellings, with apartments at just 0.8%, so buyers face a predominantly land-based market. Three-bedroom homes account for 72.8% of all dwellings, limiting variety but reflecting a stable family-oriented stock. Monthly mortgage repayments average $1,672 and mortgage-to-income sits at 27.2%, below the 30% stress threshold, making the suburb more accessible than its price tag suggests relative to household income at the 41.7th national percentile.
For Buyers
Stock splits between 57.1% separate houses and 42.2% semi-detached dwellings, with apartments at just 0.8%, so buyers face a predominantly land-based market. Three-bedroom homes account for 72.8% of all dwellings, limiting variety but reflecting a stable family-oriented stock. Monthly mortgage repayments average $1,672 and mortgage-to-income sits at 27.2%, below the 30% stress threshold, making the suburb more accessible than its price tag suggests relative to household income at the 41.7th national percentile.
For Investors
A 43.7% renter share is notably higher than the national average, giving landlords a deep and consistent tenant pool. Vacancy sits at 5.6%, which is elevated and warrants monitoring before committing, as it suggests some softness in tenant demand relative to supply. Development activity shows 28 applications in the past 12 months, including multi-dwelling proposals such as a four-unit residential flat building lodged in April 2026. The 22.9% price appreciation over the year supports a capital growth case, though investors should weigh the vacancy rate carefully against rental returns.
Development Activity
Total DAs
160
Last 12 Months
32
YoY ChangeiYear-over-year change in DA lodgements
+39.1%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Seacombe Gardens
Open-register school locations for education access. This is not a school-quality ranking.
Darlington Primary School
Demographics
The median age of 35 is 5 years below the national figure, reflecting a population concentrated in younger working households rather than retirees. University qualifications reach 41.9%, which is 11.8 percentage points above the national rate, indicating a well-educated labour force. Overseas-born residents at 36.7% are 15.1 points above nationally, with English (1,117) and Chinese (265) as the leading ancestries alongside Scottish (250) and Irish (235). Mandarin speakers (79) and Arabic speakers (39) represent the largest non-English language groups. Average household size is 2.3, slightly below the national figure of 2.5, consistent with a mix of couples and smaller families rather than multi-generational households.
Age Distribution
Bedrooms
Dwelling Structure
57.1%
Houses
42.2%
Townhouse
0.8%
Apartment
Tenure
Tenure is skewed toward renting: 43.7% rent, 32.9% hold a mortgage and 23.4% own outright, a breakdown that places ownership well below national norms. Three-bedroom homes dominate at 72.8% of dwellings, making it an unusually uniform stock compared to suburbs with more diverse unit mixes. Mortgage repayments average $1,672 per month, and the mortgage-to-income ratio of 27.2% stays below the 30% stress line, as does rent-to-income at 26.1%. Semi-detached dwellings at 42.2% represent a larger share than typical SA suburbs, with apartments nearly absent at 0.8%.
Mortgage / mo
$1,672
Rent / wkiABS Census 2021 median across all dwelling types. Current market rents are typically higher.
$370
Census 2021
HH Size
2.3
Personal Income / wk
$715
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
5.6%
Unoccupied
84
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
26.1%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
27.2%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
36.2%
Couples with children
37.5%
Couples, no children
23.0%
Single parent
921
Total families
Economy & Employment
Healthcare is the defining industry at 30.8% of employed residents (360 workers), a share well above typical suburban concentrations and likely reflecting proximity to the Flinders Medical Centre and surrounding health precincts. Education follows at 9.4% (110 workers), then Construction at 7.5% and Public Admin at 6.9%. By occupation, Professionals lead with 408 workers, followed by Community and Personal Services (288) and Clerical and Administrative (202), a spread consistent with the healthcare-heavy base. The full-time employment rate of 60% is moderate, and unemployment of 5% is in line with broader Adelaide levels. Household income sits at the 41.7th national percentile, below the median, partly because the part-time and community-services workforce depresses average earnings.
Unemployment
4.6%
Labour Force
1,752
Unemployed
81
Source: ABS Census 2021
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
55.7%
Part-time
37.2%
Participation
61.5%
Employed
1,671
Full-time and part-time are shares of the employed. Source: ABS Census 2021
Occupations
Top Industries
University
41.9%
Postgraduate
12.2%
Born Overseas
36.7%
Dwellings
1,418
Transport to Work
Car dependency is high at 83.8% of commuters, above the national average, with public transport used by 8.1% and walking or cycling by 3.6%, reflecting a suburban layout without dense transit infrastructure. Crime recorded 102 incidents giving a rate of 30.2 per 1,000 residents; no breakdown by category is available, but the rate is broadly comparable to mid-tier suburban SA areas. Rent-to-income at 26.1% and mortgage-to-income at 27.2% both sit below the 30% stress threshold, indicating the suburb is financially manageable for renters and owners alike. The volunteering rate of 15.1% and the relatively young median age of 35 point to an engaged, working-age community rather than a retirement-skewed population. No schools are recorded inside the 0.99 km2 boundary in this dataset.
Drive
76.0%
Public Transport
7.5%
Walk / Cycle
3.3%
Work from Home
9.1%
Safety & Crime
Total Offences
102
Year ending June 2024
Rate per 1,000 People
30.2
Source: Crime Statistics Agency Victoria / SA Police
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Seacombe Gardens compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Seacombe Gardens a good suburb to live in?
Seacombe Gardens has a median age of 35, 5 years below the national figure, and university qualifications at 41.9%, which is 11.8 percentage points above national. Mortgage and rent costs both sit below the 30% stress threshold, at 27.2% and 26.1% respectively, making it financially manageable. The suburb suits households who value proximity to healthcare employment corridors and a predominantly house-based streetscape.
What schools are in Seacombe Gardens?
No schools are recorded inside the 0.99 km2 Seacombe Gardens boundary in this dataset. Families rely on schools in surrounding suburbs. The local adult population is well educated, with 41.9% holding university qualifications, which is 11.8 percentage points above the national average.
Is Seacombe Gardens safe?
Recorded crime totalled 102 incidents, giving a rate of 30.2 per 1,000 residents. No breakdown by crime category is available in this dataset. As a relative indicator, rent-to-income of 26.1% and mortgage-to-income of 27.2% both signal a financially stable population, which tends to correlate with lower property-crime rates.
How is Seacombe Gardens's population changing?
The resident turnover rate of 29.2% indicates a fluid and mobile population with nearly 3 in 10 households changing in the measured period. The overseas-born share stands at 36.7%, some 15.1 percentage points above the national figure, suggesting ongoing migrant inflows sustain both rental demand and population renewal across the 3,373-person suburb.
What languages are spoken in Seacombe Gardens?
About 36.7% of residents were born overseas, which is 15.1 percentage points above the national average. The top non-English languages spoken are Mandarin (79 speakers), Arabic (39), Punjabi (32) and Nepali (25), reflecting a modest but varied international community within a population of 3,373.
How much development is happening in Seacombe Gardens?
There were 28 development applications lodged in the past 12 months. Recent projects include a four-dwelling residential flat building with car parking lodged in April 2026, alongside single-storey detached dwellings and tree-removal applications, indicating a mix of infill densification and standard residential works across the 0.99 km2 suburb.
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), SA Department for Housing and Urban Development (house prices), state education open registers (school locations), 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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