Victoria · Postcode 3401
Karnak postcode and suburb data
Victoria · Phone area code 03 · 324 km from Melbourne
Suburb snapshot
Karnak 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
Benchmarks against VIC
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Karnak ranks: household income sits in the bottom 25% of VIC suburbs; SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Karnak vs the VIC average and the national average, using population-weighted 2021 Census data.
| Metric | Karnak | VIC avg | AU avg |
|---|---|---|---|
| Household income/wk | $966 -VIC | $1,817 | $1,836 |
| Rent/wk | $92 -VIC | $375 | $390 |
| Median age | 62 | 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.
Karnak is a locality 324 km from Melbourne in Victoria, classified as outer regional by the ABS. The postcode is 3401. It falls within the Warrnambool and South West region. The local government area is West Wimmera.
According to the 2021 Census, Karnak has a population of 9 with a median age of 62. The median weekly household income is $966, below the VIC average.
Housing in Karnak includes a median weekly rent of $92, 4 total dwellings. Housing costs in the area sit below the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Karnak scores in decile 9 out of 10, which is well above the national average.
Karnak is part of the Glenelg - Southern Grampians statistical area in Victoria.
Karnak details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 3401 |
| State | Victoria (VIC) |
| Phone Area Code | 03 |
| Population (2021) | 9 |
| Median Age | 62 years |
| Median Household Income (Census 2021) | $966/week |
| Median Personal Income (Census 2021) | $850/week |
| Median Weekly Rent (Census 2021) | $92 |
| Average Household Size | 1.6 persons |
| Area | 151.6 km² |
| Population Density | 0/km² |
| Total Dwellings | 4 |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -36.8387468 |
| Longitude | 141.5067129 |
| Distance from Melbourne | 324 km |
| Region (SA4) | Warrnambool and South West |
| Area (SA3) | Glenelg - Southern Grampians |
| Local Government | West Wimmera |
| Federal Electorate | Mallee |
| State Electorate | Lowan (Western Victoria) |
| Time Zone | AEST (UTC+10), Australia/Melbourne (standard time) |
Age Profile
Show counts
| 0–14 years | 0 (0.0%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 0 (0.0%) |
| 45–64 years | 9 (100.0%) |
| 65+ years | 4 (44.4%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 6 (66.7%) |
| Diabetes | 6 (66.7%) |
| Lung Condition | 3 (33.3%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 0 (0.0%) |
| 1 vehicle | 0 (0.0%) |
| 2 vehicles | 3 (100.0%) |
| 3+ vehicles | 0 (0.0%) |
Suburbs Near Karnak
Same Postcode (3401)
More Karnak 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.