Victoria · Postcode 3851

Somerton Park postcode and suburb data

Victoria · Phone area code 03 · 190 km from Melbourne

CoastalOuter Regional Top 10% SEIFA
5,811
Population (2021)
$1,633
Household income/wk
$335
Median rent/wk
48
Median age
9/10
SEIFA advantage

Suburb snapshot

Somerton Park at a glance vs VIC

Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.

Quick facts

3851 Postcode See every suburb sharing this postcode
5,811 People Resident population, Census 2021
Holdfast Bay Council area Local Government Area
48 Median age Years, Census 2021
$1,633/wk Household income Suburb median, Census 2021 dollars
Decile 9/10 SEIFA advantage Very high advantage

Benchmarks against VIC

Household income
$1,633/wk
10% below VIC average
Suburb median, Census 2021
Weekly rent
$335/wk
11% below VIC average
Suburb median, Census 2021
SEIFA advantage
9/10
3.0 deciles above VIC average
IRSAD decile, higher means more advantage
Median age
48 years
2.0 years older than VIC average
Resident median age
Unemployment
3.0%
2.0 pts below VIC average
Census labour-force rate

Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.

Where Somerton Park ranks: SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.

ABS Census 2021 · SEIFA 2021

Detailed comparison table

Somerton Park vs the VIC average and the national average, using population-weighted 2021 Census data.

MetricSomerton ParkVIC avgAU avg
Household income/wk $1,633 -VIC $1,817 $1,836
Rent/wk $335 -VIC $375 $390
Mortgage/month $2,058 ≈VIC $1,933 $1,958
Median age 48 46.0 45.0
SEIFA decile 9/10 +VIC 6.0/10 6.0/10
Unemployment 3.0% -VIC 5.0% 5.0%

Green pill = at least 10% above the VIC average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.

Somerton Park (3851) is a coastal town in regional Victoria. It lies around 190 km from Melbourne by road. The locality is part of the Wellington statistical area. It is administered by Holdfast Bay.

According to the 2021 Census, Somerton Park has a population of 5,811 with a median age of 48. The median weekly household income is $1,633, below the VIC average. The unemployment rate is 3.0%, lower than the VIC average. The Indigenous population is 56 (1.0% of residents).

Housing in Somerton Park includes a median weekly rent of $335, median monthly mortgage repayment of $2,058, with 2,427 total dwellings. Housing costs in the area sit below the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 74.5% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Somerton Park scores in decile 9 out of 10, which is well above the national average.

Somerton Park is part of the Wellington statistical area in Victoria.

Somerton Park details

Location, Census, housing, SEIFA and geography fields used across this profile.

Postcode3851
StateVictoria (VIC)
Phone Area Code03
Population (2021)5,811
Median Age48 years
Median Household Income (Census 2021)$1,633/week
Median Personal Income (Census 2021)$908/week
Median Weekly Rent (Census 2021)$335
Median Monthly Mortgage (Census 2021)$2,058
Average Household Size2.2 persons
Area2.2 km²
Population Density2597/km²
Total Dwellings2,427
Australian Citizens92.2%
Indigenous Population56 (1.0%)
Unemployment Rate3.0%
SEIFA IRSAD Decile9/10 (well above average)
Latitude-38.0976286
Longitude147.0973977
Distance from Melbourne190 km
Region (SA4)Latrobe - Gippsland
Area (SA3)Wellington
Local GovernmentHoldfast Bay
Federal ElectorateGippsland
State ElectorateGippsland South (Eastern Victoria)
Time ZoneAEST (UTC+10), Australia/Melbourne (standard time)

Age Profile

0–14 (13.6%) 15–24 (12.7%) 25–44 (18.8%) 45–64 (27.5%) 65+ (27.2%)
Show counts
0–14 years790 (13.6%)
15–24 years738 (12.7%)
25–44 years1,094 (18.8%)
45–64 years1,597 (27.5%)
65+ years1,579 (27.2%)

Housing Tenure

Owned outright (42.9%) Mortgaged (31.6%) Rented (25.5%)

SEIFA socio-economic index

Somerton Park is in SEIFA IRSAD decile 9 of 10. Higher deciles indicate more relative socio-economic advantage. This is an area-level index, not a score for individual households.
More disadvantagedMiddle rangeMore advantaged

Health Conditions (2021 Census)

Arthritis627 (10.8%)
Asthma516 (8.9%)
Heart Disease327 (5.6%)
Diabetes275 (4.7%)
Cancer258 (4.4%)
Lung Condition107 (1.8%)
Dementia95 (1.6%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle205 (8.6%)
1 vehicle915 (38.3%)
2 vehicles867 (36.3%)
3+ vehicles399 (16.7%)

Suburbs Near Somerton Park

Same Postcode (3851)

More Somerton Park Data

Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.