Maslin Beach
The median age of 46 is 6.0 years above the national figure, and 76.2% of residents stayed at the same address for five years, producing a highly settled, older owner base. At 97.3%, the share of separate houses is among the highest in South Australia, and crime totals just 20 recorded incidents, placing the crime rate at 16.5 per 1,000 residents. Household income sits in the 39.2nd percentile nationally, a reminder that wealth here is held in property rather than wages.
Local council: Onkaparinga
Population
1,213
Median Age
46.0
Household IncomeiMedian weekly household income (ABS Census)
$1,380/wk
DAs (12 months)iDevelopment Applications lodged in the past year
20
Median House
$900K
First quarter 2026
Stock is almost entirely separate houses at 97.3%, so buyers face a homogeneous market with limited unit or townhouse alternatives. The bedroom split leans toward 3-bedroom homes at 54.4%, with 4-plus bedrooms at 28.8%, meaning supply caters to families and downsizers rather than first-home buyers. Monthly mortgage repayments average $1,320, and mortgage-to-income sits at 22.1%, comfortably below the 30% stress threshold compared to most capital-city suburbs. Outright owners at 39.5% outnumber mortgage holders at 38.0%, indicating a mature, settled buyer base where debt-free tenure is the norm rather than the exception.
For Buyers
Stock is almost entirely separate houses at 97.3%, so buyers face a homogeneous market with limited unit or townhouse alternatives. The bedroom split leans toward 3-bedroom homes at 54.4%, with 4-plus bedrooms at 28.8%, meaning supply caters to families and downsizers rather than first-home buyers. Monthly mortgage repayments average $1,320, and mortgage-to-income sits at 22.1%, comfortably below the 30% stress threshold compared to most capital-city suburbs. Outright owners at 39.5% outnumber mortgage holders at 38.0%, indicating a mature, settled buyer base where debt-free tenure is the norm rather than the exception.
For Investors
The rental market at Maslin Beach is thin but stable. The 11.8% vacancy rate is elevated and signals that a portion of the housing stock sits idle between seasonal or lifestyle use rather than serving permanent rental demand. Development activity recorded 24 applications in the past 12 months, covering additions and outbuildings rather than new subdivisions, so supply is not expanding quickly. The 9.8% annual price growth to 1Q 2026 is the clearest investment signal, driven by coastal lifestyle demand rather than population density or migration.
Development Activity
Total DAs
170
Last 12 Months
20
YoY ChangeiYear-over-year change in DA lodgements
-20.0%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Demographics
The median age of 46 sits 6.0 years above the national figure, reflecting an established owner base that has largely moved beyond the family-formation stage. Couples without children make up 31.5% of families, and couples with children account for 29.6%, a nearly even split that points to a mixed lifecycle community rather than a purely retired enclave. Overseas-born residents reach 27.1%, which is 5.5 percentage points above the national figure, led by English-ancestry residents at 658 people, followed by Scottish (143), Irish (132) and German (104) ancestries. University qualifications stand at 25.5%, which is 4.6 points below the national average, consistent with a workforce tilted toward healthcare, trades and public sector roles. Volunteering runs at 15.4%, above many comparable coastal suburbs.
Age Distribution
Bedrooms
Dwelling Structure
97.3%
Houses
0.0%
Townhouse
2.7%
Apartment
Tenure
Maslin Beach is one of the most detached-house-dominant suburbs in South Australia, with 97.3% of dwellings being separate houses and apartments accounting for only 2.7%. The tenure split is weighted toward ownership: 39.5% own outright and 38.0% hold a mortgage, together accounting for 77.5% of households, compared to a national renter share typically around 30%. Three-bedroom homes lead at 54.4%, followed by 4-plus bedrooms at 28.8%, with 2-bedroom dwellings at 14.5%. Rent-to-income at 24.3% remains below the 30% stress threshold, though the low rental population of 22.5% means this affects relatively few households.
Mortgage / mo
$1,320
Rent / wkiABS Census 2021 median across all dwelling types. Current market rents are typically higher.
$335
Census 2021
HH Size
2.4
Personal Income / wk
$697
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
11.8%
Unoccupied
66
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
24.3%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
22.1%
Community Profile
Ancestry
Household Composition
37.9%
Couples with children
42.2%
Couples, no children
18.1%
Single parent
348
Total families
Economy & Employment
Healthcare dominates the local employment base at 19.1% of workers (78 people), followed by Education at 11.8% (48), Manufacturing and Public Administration each at 9.6% (39), and Professional/Tech at 8.1% (33). By occupation, Professionals lead at 128 workers, ahead of Community and Personal Services at 90 and Labourers at 72. The full-time employment rate is 56.4% and the unemployment rate sits at 7.2%, higher than metropolitan averages, because a substantial share of the 1,213 residents fall outside the labour force, with 338 people not participating.
Unemployment
6.8%
Labour Force
657
Unemployed
45
Source: ABS Census 2021
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
53.8%
Part-time
41.5%
Participation
63.2%
Employed
612
Full-time and part-time are shares of the employed. Source: ABS Census 2021
Occupations
Top Industries
University
25.5%
Postgraduate
5.5%
Born Overseas
27.1%
Dwellings
490
Transport to Work
With a crime rate of 16.5 per 1,000 residents (20 recorded incidents total), Maslin Beach sits well below the rates seen in higher-density South Australian suburbs. Car dependency is pronounced: 90.4% of residents drive to work and only 3.1% use public transport, reflecting the suburb's coastal fringe location with limited bus frequency compared to inner suburbs. No schools are recorded within the suburb boundary, so families depend on institutions in neighbouring areas. Rent-to-income at 24.3% and mortgage-to-income at 22.1% both sit below the 30% stress threshold, indicating housing costs are manageable relative to incomes for most residents. Only 5.1% of residents (59 people) need daily assistance, a low rate for a suburb with a median age 6 years above national.
Drive
77.6%
Public Transport
2.7%
Walk / Cycle
2.1%
Work from Home
14.1%
Growth Outlook
The suburb has only 1,213 residents in 6.55 square kilometres, giving a density of 185 people per km2, far below metropolitan norms. With 76.2% of residents having stayed at the same address for five years, turnover is low at 23.8%, which limits the pool of new buyers and sellers compared to higher-churn suburbs. No population forecast is available in the brief, but the aging median age of 46 years, which is 6.0 years above national, suggests the resident base will continue skewing older rather than growing through family-formation migration. The 24 development applications in the past 12 months are concentrated on additions rather than new dwellings, so supply-side growth is constrained.
Population trend: Onkaparinga council area
Maslin Beach sits in the Onkaparinga council area. These are the council area's residents, not Maslin Beach's.
Residents 2025
184,827
Growth, 5 yr average
+1.1%/yr
2020 to 2025
Growth, last year
+0.9%
2024 to 2025
ABS Estimated Resident Population by LGA, 30 June each year; council area, not this suburb
Safety & Crime
Total Offences
20
Year ending June 2024
Rate per 1,000 People
16.5
Source: Crime Statistics Agency Victoria / SA Police
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Maslin Beach compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Maslin Beach a good suburb to live in?
Maslin Beach suits owner-occupiers seeking a low-density coastal setting. The crime rate is just 16.5 per 1,000 residents and 76.2% of residents have stayed for at least 5 years, indicating genuine attachment to the area. The trade-offs are limited public transport at 3.1% and no schools within the suburb boundary, so families rely on neighbouring areas for education.
What schools are in Maslin Beach?
No schools are recorded within the Maslin Beach suburb boundary in this dataset. Families rely on schools in neighbouring suburbs. About 25.5% of residents hold university qualifications, which is 4.6 percentage points below the national average, consistent with a workforce-oriented rather than highly academic residential profile.
Is Maslin Beach safe?
Maslin Beach recorded only 20 total crimes in the reference period, giving a crime rate of 16.5 per 1,000 residents. This is low compared to higher-density South Australian suburbs. The stable resident base, with 76.2% having stayed 5 or more years, also reflects the settled, low-risk character of the area.
How is Maslin Beach's population changing?
Maslin Beach has a small population of 1,213 across 6.55 square kilometres, with a density of 185 people per km2. The median age of 46 is 6.0 years above the national figure and 76.2% of residents stayed at the same address for 5 years, suggesting slow natural turnover and gradual aging of the resident base rather than significant population growth.
How much development is happening in Maslin Beach?
There were 24 development applications lodged in the past 12 months, including a two-storey detached dwelling, upper-storey additions and outbuildings. Most activity reflects renovation and improvement of existing houses rather than new subdivisions, consistent with the 97.3% separate-house stock and the suburb's established, low-density character.
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).
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