Seaton
At 2,371.1 people per sq km, Seaton is a compact western Adelaide suburb where established housing is being repriced quickly. The median house price reached $1,077,000 in 1Q 2026, up 13.5% from 1Q 2025, while household income sits at the 30.9 percentile. Compared with nearby Grange and Fulham Gardens, Seaton has a more middle-income profile but still benefits from its coastal-side position, 10,877 residents and a born-overseas share of 30.6%, which is 9.0 points above the national level.
Population
10,877
Median Age
40.0
Household IncomeiMedian weekly household income (ABS Census)
$1,300/wk
DAs (12 months)iDevelopment Applications lodged in the past year
76
Median House
$1.1M
Median 1Q 2026
Homebuyers face a price-to-income squeeze in Seaton because the $1,077,000 median house price sits well above what a $1,300 weekly household income usually supports. Mortgage costs consume 30.2% of income, above the common stress threshold, even though the recorded median mortgage is $1,700 per month. The housing stock still suits families better than many inner areas, with 66.6% separate houses, 24.6% semi-detached homes and 60.0% of dwellings having 3 bedrooms. Buyers seeking lower maintenance options have some choice, but apartments are only 8.7%.
For Buyers
Homebuyers face a price-to-income squeeze in Seaton because the $1,077,000 median house price sits well above what a $1,300 weekly household income usually supports. Mortgage costs consume 30.2% of income, above the common stress threshold, even though the recorded median mortgage is $1,700 per month. The housing stock still suits families better than many inner areas, with 66.6% separate houses, 24.6% semi-detached homes and 60.0% of dwellings having 3 bedrooms. Buyers seeking lower maintenance options have some choice, but apartments are only 8.7%.
For Investors
Seaton has a sizeable rental base, with 37.1% of homes rented, but the $310 weekly median rent is low compared with the $1,077,000 house median, so yield-led investors need to be selective. Vacancy is 6.4%, higher than a tight-market benchmark, which can soften short-term rent pressure. The more compelling angle is renewal: 60 development applications in 12 months point to active infill and upgrades. Demand is helped by 30.6% born overseas and 5.5% public transport commuting, but car access still dominates at 86.7%.
Development Activity
Total DAs
485
Last 12 Months
76
YoY ChangeiYear-over-year change in DA lodgements
+31.0%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Seaton iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Seaton High School
U, 7-12 · 917 students
Seaton Park Primary School
U, R-6 · 149 students
Demographics
Seaton's age profile is close to national, with a median age of 40 and an age gap of 0.0 years versus the national figure. Education is slightly higher than average, with 31.6% university qualified, 1.5 percentage points above national. Migration is a clearer marker: 30.6% of residents were born overseas, 9.0 points above national, and ancestry is led by English at 2,760, Italian at 2,259 and Greek at 644. Italian, Punjabi and Greek are the main non-English language counts, which explains the suburb's older European and newer migrant mix.
Age Distribution
Bedrooms
Dwelling Structure
66.6%
Houses
24.6%
Townhouse
8.7%
Apartment
Tenure
Seaton's housing market has moved sharply in a short window, rising from $948,750 in 1Q 2025 to $1,077,000 in 1Q 2026, a 13.5% gain and also the recorded peak. The latest price is 0.0% below that peak, so there is no visible pullback in the short series. Ownership is evenly split: 31.4% own outright, 31.5% are paying a mortgage and 37.1% rent. Compared with higher-density inner suburbs, Seaton remains house-led, with 66.6% separate houses and 60.0% 3 bedroom dwellings, but mortgage stress at 30.2% shows affordability is tight.
Median House Price Trend
Source: State Valuer-General
Mortgage / mo
$1,700
Rent / wk
$310
HH Size
2.3
Personal Income / wk
$696
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
6.4%
Unoccupied
308
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
23.8%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
30.2% stressed
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
26.7%
Couples, no children
8,115
Total families
Economy & Employment
Seaton's workforce is service-heavy rather than high-income corporate, which aligns with household income at the 30.9 percentile. Healthcare is the largest industry at 19.8% and 643 workers, followed by education at 10.5%, construction at 9.4%, public admin at 8.2% and retail at 7.6%. Professionals lead occupations with 970 workers, above clerical and admin at 760. SEIFA is mixed: IEO decile 5 and IRSAD decile 5 sit near average, while IER decile 3 and IRSD decile 4 point to lower economic resources despite moderate education.
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
62.0%
Part-time
32.7%
Participation
54.9%
Employed
4,800
Occupations
Top Industries
University
31.6%
Postgraduate
6.6%
Born Overseas
30.6%
Dwellings
4,525
Transport to Work
Seaton is practical for households that want western Adelaide access with local schooling, but car use is much higher than public transport. Commuting is dominated by driving at 86.7%, while public transport is 5.5% and walking or cycling is 2.0%, below what inner-city buyers often expect. Education is government-led, with 2 local schools and an ICSEA range from 999 to 1001, anchored by Seaton High School with 917 enrolments. Safety needs due diligence: 617 recorded offences equal 56.7 per 1,000 residents, while IRSAD decile 5 is around the state middle.
Drive
86.7%
Public Transport
5.5%
Walk / Cycle
2.0%
Work from Home
N/A
Safety & Crime
Total Offences
617
Year ending June 2024
Rate per 1,000 People
56.7
Source: Crime Statistics Agency Victoria / SA Police
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Seaton compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Seaton a good suburb to live in?
Seaton suits buyers who value western Adelaide access, established homes and local schools. It has 10,877 residents, 2 local schools and 66.6% separate houses, but car dependence is higher than inner areas at 86.7% of commuters.
What is the median house price in Seaton?
The median house price in Seaton is $1,077,000 for 1Q 2026. That is 13.5% higher than the $948,750 recorded in 1Q 2025, so prices are at their recorded peak rather than below it.
What schools are in Seaton?
Seaton has 2 local schools: Seaton High School, a government secondary school with 917 enrolments and ICSEA 1001, and Seaton Park Primary School, a government primary school with 149 enrolments and ICSEA 999.
Is Seaton safe?
Seaton recorded 617 offences, equal to 56.7 per 1,000 residents. That rate is a useful suburb-level safety marker, and buyers should compare it with nearby areas and inspect individual streets before deciding.
Is Seaton good for property investment?
Seaton has investor appeal through a 37.1% rental share and 60 development applications in 12 months. The caution is yield, because the $310 weekly rent is low compared with the $1,077,000 median house price.
How is Seaton's population changing?
Seaton has 10,877 residents at a density of 2,371.1 people per sq km. Change is being shaped by infill activity, with 60 development applications in 12 months, and by migration, with 30.6% born overseas.
What languages are spoken in Seaton?
English is common, but Seaton has notable non-English language groups. Italian is recorded for 371 residents, Punjabi for 164, Greek for 163, Serbian for 93 and Arabic for 79, reflecting an overseas-born share 9.0 points above national.
Is there much development in Seaton?
Yes. Seaton recorded 60 development applications in 12 months, which is a meaningful level for a 4.59 sq km suburb. Recent examples include alterations and a single-storey detached dwelling on a newly divided allotment.
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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