Maryknoll Postcode

Victoria

Inner Regional Top 10% SEIFA Above VIC income
3812
Postcode for Maryknoll, VIC
Phone area code: 03 · 61 km from Melbourne · Pop. 646
646
Population
39
Median Age
$2,352
Household Income/wk
$96
Median Rent/wk
9/10
SEIFA Advantage
3.4
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 Maryknoll ranks: household income is in the top 10% of VIC suburbs; SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.

How Maryknoll Compares

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

MetricMaryknollVIC avgAU avg
Household income/wk $2,352 +VIC $1,817 $1,836
Rent/wk $96 -VIC $375 $390
Mortgage/month $2,167 +VIC $1,933 $1,958
Median age 39 46.0 45.0
SEIFA decile 9/10 +VIC 6.0/10 6.0/10
Unemployment 1.4% -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.

Maryknoll is a locality 61 km from Melbourne in Victoria, classified as inner regional by the ABS. The postcode is 3812. It falls within the Melbourne - South East region. The local government area is Cardinia.

According to the 2021 Census, Maryknoll has a population of 646 with a median age of 39. The median weekly household income is $2,352, above the VIC average. The unemployment rate is 1.4%, lower than the VIC average. The Indigenous population is 5 (0.8% of residents).

Housing in Maryknoll includes a median weekly rent of $96, median monthly mortgage repayment of $2,167, with 196 total dwellings. These housing costs sit above the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 95.7% of housing.

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

Maryknoll is part of the Cardinia statistical area in Victoria.

Maryknoll Details

Postcode3812
StateVictoria (VIC)
Phone Area Code03
Population (2021)646
Median Age39 years
Median Household Income (Census 2021)$2,352/week
Median Personal Income (Census 2021)$870/week
Median Weekly Rent (Census 2021)$96
Median Monthly Mortgage (Census 2021)$2,167
Average Household Size3.1 persons
Area3.4 km²
Population Density192/km²
Total Dwellings196
Australian Citizens92.6%
Indigenous Population5 (0.8%)
Unemployment Rate1.4%
SEIFA IRSAD Decile9/10 (well above average)
Latitude-38.032
Longitude145.602
Distance from Melbourne61 km
Region (SA4)Melbourne - South East
Area (SA3)Cardinia
Local GovernmentCardinia
Federal ElectorateLa Trobe

Age Profile

0–14 (20.3%) 15–24 (13.2%) 25–44 (21.8%) 45–64 (29.9%) 65+ (14.2%)
Show counts
0–14 years131 (20.3%)
15–24 years85 (13.2%)
25–44 years141 (21.8%)
45–64 years193 (29.9%)
65+ years92 (14.2%)

Housing Tenure

Owned outright (37.1%) Mortgaged (58.6%) Rented (4.3%)

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)

Asthma57 (8.8%)
Arthritis40 (6.2%)
Diabetes32 (5.0%)
Heart Disease18 (2.8%)
Cancer16 (2.5%)
Lung Condition4 (0.6%)

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

Motor Vehicles per Dwelling

No vehicle4 (2.0%)
1 vehicle29 (14.8%)
2 vehicles69 (35.2%)
3+ vehicles94 (48.0%)

Suburbs Near Maryknoll

Same Postcode (3812)

More Maryknoll 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.