Tonimbuk Postcode

Victoria

Inner Regional Top 10% SEIFA Above VIC income
3815
Postcode for Tonimbuk, VIC
Phone area code: 03 · 70 km from Melbourne · Pop. 229
229
Population
50
Median Age
$2,024
Household Income/wk
$260
Median Rent/wk
9/10
SEIFA Advantage
38.4
Area (km²)

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

Where Tonimbuk ranks: household income is in the top 25% of VIC suburbs; SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.

How Tonimbuk Compares

Tonimbuk vs the VIC average and the national average (2021 Census, population-weighted).

MetricTonimbukVIC avgAU avg
Household income/wk $2,024 +VIC $1,817 $1,836
Rent/wk $260 -VIC $375 $390
Mortgage/month $2,111 ≈VIC $1,933 $1,958
Median age 50 46.0 45.0
SEIFA decile 9/10 +VIC 6.0/10 6.0/10
Unemployment 0.0% -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.

Tonimbuk is a locality 70 km from Melbourne in Victoria, classified as inner regional by the ABS. The postcode is 3815. It falls within the Melbourne - South East region. The local government area is Cardinia.

According to the 2021 Census, Tonimbuk has a population of 229 with a median age of 50. The median weekly household income is $2,024, above the VIC average. The Indigenous population is 7 (3.1% of residents).

Housing in Tonimbuk includes a median weekly rent of $260, median monthly mortgage repayment of $2,111, with 82 total dwellings. Housing costs in the area sit below the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 89.0% of housing.

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

Tonimbuk is part of the Cardinia statistical area in Victoria.

Tonimbuk Details

Postcode3815
StateVictoria (VIC)
Phone Area Code03
Population (2021)229
Median Age50 years
Median Household Income (Census 2021)$2,024/week
Median Personal Income (Census 2021)$776/week
Median Weekly Rent (Census 2021)$260
Median Monthly Mortgage (Census 2021)$2,111
Average Household Size2.6 persons
Area38.4 km²
Population Density6/km²
Total Dwellings82
Australian Citizens94.3%
Indigenous Population7 (3.1%)
Unemployment Rate0.0%
SEIFA IRSAD Decile9/10 (well above average)
Latitude-38.0206756
Longitude145.7182515
Distance from Melbourne70 km
Region (SA4)Melbourne - South East
Area (SA3)Cardinia
Local GovernmentCardinia
Federal ElectorateMonash

Age Profile

0–14 (14.8%) 15–24 (12.7%) 25–44 (16.2%) 45–64 (41.9%) 65+ (19.7%)
Show counts
0–14 years34 (14.8%)
15–24 years29 (12.7%)
25–44 years37 (16.2%)
45–64 years96 (41.9%)
65+ years45 (19.7%)

Housing Tenure

Owned outright (46.6%) Mortgaged (42.5%) Rented (11.0%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 9 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Asthma20 (8.7%)
Arthritis15 (6.6%)
Cancer13 (5.7%)
Heart Disease11 (4.8%)
Diabetes7 (3.1%)
Lung Condition5 (2.2%)

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

Motor Vehicles per Dwelling

No vehicle0 (0.0%)
1 vehicle8 (10.3%)
2 vehicles25 (32.1%)
3+ vehicles45 (57.7%)

Suburbs Near Tonimbuk

Garfield North 4.5 km Bunyip North 6.4 km Longwarry North 7.3 km Labertouche 7.7 km Tynong North 7.9 km Bunyip 8.8 km Garfield 9.4 km Maryknoll 10.3 km Longwarry 10.9 km Tynong 11.3 km Gembrook 12.7 km Vervale 13.3 km

Same Postcode (3815)

Bunyip Bunyip North Iona

More Tonimbuk Data

Cardinia LGA 42 suburbs, 14 postcodes, 118,769 people Climate & Weather Closest station: Wonthaggi (66.5 km) NDIS Providers NDIS data for Cardinia LGA

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.