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Suburb profile ·Onkaparinga LGA · SA ·5169

Seaford SA 5169

Seaford is in Onkaparinga LGA, SA, postcode 5169, with population 4,493.

The read

Livability-led

There are enough stretched or weaker signals here that you should assume trade-offs rather than a clean story. Use compare mode to see whether the downside is price, local quality, or weaker momentum before treating it as a target suburb.

$506/wk
-5.4% YoY
Mar 2025 → Mar 2026 · 5 periods
SA private rent report · suburb grain · Mar 2026
$568
$506
Mar 2025Mar 2026
Why it fits

School coverage gives the page a stronger family/livability signal. Transport coverage adds a practical access signal.

What to check

Gross yield looks low for an income-first use case.

Median house
$870K
House median, latest period
5.8%YoY D5 vs AU
Median rent
$506/wk
Income-stretched rent market
5.4%YoY D10 vs AU
Gross yield
3.0%
Low yield band
D9 vs AU
Population
4,493
4K local footprint
D9 vs AU
Schools
3
Matched school context
D9 vs AU
Solar
5,764
320 added 12mo · 35MW

Price history

HousesUnits

Houses to Q1'26 · Units to 2024 — house and unit medians are released on separate cycles, so their latest period can differ.

Trend & investor depth

Indicative cashflow-$437/wk (-$22,722/yr) · interest-only @ 6.1%, 80% LVR

Indicative cashflow is interest-only and excludes tax — use the calculator for a full projection.

Affordability

Buying
13.3x
median home price as a multiple of annual household income
Stretched
Renting
40%
median weekly rent as a share of gross household income (the 30% rule)
High stress

Owners with a mortgage repay a median of $1,400/mo, while renters pay about $2,193/mo — renting runs $793/mo higher on these medians.

Median price
$870K
Household income · yr
$65K
Median rent · wk
$506
Owner mortgage · mo
$1,400
Gross yield
3.0%

Household income

$65K household · yr-13.4% vs SA suburb median
Personal
$34K
Family
$81K
Household
$65K

Schools

Total3
Avg ICSEA999
Students1,734
Catholic1
Government2
  • Seaford Secondary CollegeSecondary · Government · ICSEA 962
  • Moana Primary SchoolPrimary · Government · ICSEA 1018
  • All Saints Catholic Primary SchoolPrimary · Catholic · ICSEA 1017
Crime 2024-25
512
11,396 per 100k
D9 vs AU

Crime

Rate · per 100k11,396
Total incidents512· 2024-25
  • Assault6872%
  • Break And Enter1718%
  • Drug Offences00%
  • Fraud910%

Full data detail

Seaford SA — Property Data and Demographics

Seaford is a smaller residential area in South Australia within the Onkaparinga local government area (postcode 5169). With a population of 4,493, the suburb has a settled mid-life population with a median age of 43. Households earn a median income of $65K per year, with an average household size of 2.3 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.9% year-on-year at the LGA level. SA employment has moved +2.1% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. SA also had 23 Commonwealth-backed major projects under construction, 2 underway, and 11 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are technicians & trades, professionals, community & personal service. Employment in the area leans toward healthcare and construction. The top ancestries reported are English, Australian, Scottish.

Seaford has a median house price of $870,000, which has declined by 5.8% year-on-year. Units have a median price of $547,000 (+16.5% YoY). The current median weekly rent is $506. This gives a gross rental yield of approximately 3.0%. The median monthly mortgage repayment is $1,400.

Seaford is served by 3 schools, including 2 primary, 1 secondary. The average ICSEA score is 999, which is around the national average of 1,000. Public transport access includes 1 rail station, 36 bus stops. The crime rate in the Onkaparinga LGA is higher than average at 11,396 incidents per 100,000 population.

On the investment side, Seaford shows a gross rental yield of approximately 3.0%, rated as moderate yield. Property prices are near the state median ($870K/$950K). The price-to-income ratio of 13.3x is considered stretched. House prices have moved -5.8% year-on-year. Population growth of +0.9% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.

Market & money
Investment signalsHeuristics
Rental Yield3.0%· Moderate Yield
Price vs State$870K/$950K· Near Median
Affordability13.3x Stretched
Price Momentum-5.8% Falling
Pop. Growth+0.9%· Stable
Development+0%· Steady
InvestmentSA
Mortgage · mth$1,400
Rent · wk(Census)$330
Market rent · wk(Q1 2026)$506
Gross yield2.0%
Price / income13.3x
Population growth · Onkaparinga LGAABS ERP
Population (2025)184,827
5-year growth+1.1% CAGR
YoY change+0.9%
20012025
Development · Onkaparinga LGAABS Approvals
Approvals (2026)892
Houses574
Units319
YoY change+0%
Employment · Onkaparinga LGASALM
Unemployment (Dec-25)4.4%
YoY change-0.7pp
Dec-10Dec-25
Property investors · Postcode 5169ATO
Negatively geared621 (5% of filers)
Avg rental loss$5,183/yr
Landlords (rental income)1,187
Reported capital gains732
People & prosperity
DemographicsCensus 21
Population4,493
Median age43
Household size2.3
HH income · wk$1,254
Personal income · wk$656
Persons / bedroom0.7
IncomeATO 22-23
Median income$56,743
Mean income$61,865
Earners8,900
YoY change+5.7%
SEIFA indexABS
Advantage (IRSAD)3/10
Education (IEO)3/10
Economic (IER)3/10
Disadvantage (IRSD)3/10
Area & amenity
Local amenitiesOSM
Supermarkets3
Pharmacies2
GP / clinics0
Fuel stations3
Cafes & dining13
woolworths1
TransportGTFS
Rail stations1
Bus stops36
Seaford Railway Station
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Current status
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Sources & freshness
Strong evidence

Seaford has enough direct local evidence for a first-pass decision.

QuickProperty mixes release files, Census baselines, and matched local services on this page. Read the status panel before treating every metric as equally fresh.

PRICE POSTURE
Prices come from release-based suburb series.

Official quarterly house sales workbooks; units remain on ABS fallback coverage

RENT POSTURE
Rent is using a state market dataset when available.

Use current rent as a starting signal, not as a fixed underwriting truth.

SERVICE POSTURE
Service coverage is matched locally, not inferred nationally.

Schools, transport, and hospitals are useful as presence signals, but they still have different source cadences.

Data status
Property prices
SA metropolitan median house sales · 2026-Q1 · Official quarterly house sales workbooks; units remain on ABS fallback coverage
stable source · automated · every update · quarterly
Available
Market rent
SA Housing Authority / CBS · Q1 2026 · State market dataset
medium stability · automated · every update · quarterly
Available
Crime
State crime dataset · 2024-25 · Area-level release dataset
Available
Schools
ACARA 2025 · 3 schools matched
stable source · automated · every update · annual
Available
Hospitals
AIHW · No linked local hospital coverage
medium stability · manual file · snapshot · mixed
Missing
Transport
GTFS feeds · 37 matched stops/stations
medium stability · manual file · snapshot · mixed
Available
Population growth
ABS ERP · 2025 · Annual estimate series
stable source · automated · every update · annual
Available
Building approvals
ABS Building Approvals · 2026 · Annual release series
stable source · automated · every update · monthly
Available
Available means a direct local dataset is linked. Verify means coverage exists but freshness or precision is weaker, such as ABS price fallback, Census rent fallback, or low-confidence hospital matching.

Seaford FAQ

Common questions
  1. What LGA is Seaford in?

    Seaford is in the Onkaparinga Local Government Area, SA, postcode 5169. Council-level context for Onkaparinga LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.

  2. What is the median house price in Seaford?

    The current median house price in Seaford, SA is $870K, based on the latest available sales data from state Valuers General offices and ABS Data by Region.

  3. What is the typical weekly rent in Seaford?

    The median weekly rent in Seaford is $506/wk, based on the current market rent dataset. The current rent signal is income-stretched rent market.

  4. What does the rent signal say about Seaford?

    Income-stretched rent market: Weekly rent screens at about 46% of annual income. Use this as a suburb screening signal before comparing candidates or modelling a purchase; the matching rent ranking can provide broader market context.

  5. Is Seaford a good investment?

    QuickProperty's investment signals for Seaford show: Moderate Yield, Near Median, Stretched. These are computed from price, rent, income, and population data — not an opaque score.

  6. Where does QuickProperty get its data for Seaford?

    Property prices come from state Valuers General offices and ABS Data by Region. Demographics are from ABS Census 2021. School ICSEA scores are from ACARA. Crime statistics are from state police agencies. Transport data is sourced from GTFS feeds.

  7. How often is the Seaford data updated?

    Property prices update quarterly. RBA macro indicators update with each deploy. Demographics are from Census 2021. School ICSEA scores are from ACARA 2025.