Western Australia · Postcode 6603
Lake Ninan postcode and suburb data
Western Australia · Phone area code 08 · 134 km from Perth
Suburb snapshot
Lake Ninan at a glance vs WA
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against WA
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Lake Ninan ranks: household income is in the top 10% of WA suburbs.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Lake Ninan vs the WA average and the national average, using population-weighted 2021 Census data.
| Metric | Lake Ninan | WA avg | AU avg |
|---|---|---|---|
| Household income/wk | $2,624 +WA | $1,891 | $1,836 |
| Mortgage/month | $2,167 +WA | $1,890 | $1,958 |
| Median age | 58 | 43.0 | 45.0 |
| SEIFA decile | 7/10 ≈WA | 6.0/10 | 6.0/10 |
| Unemployment | 0.0% -WA | 5.0% | 5.0% |
Green pill = at least 10% above the WA average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Lake Ninan is a locality 134 km from Perth in Western Australia, classified as outer regional by the ABS. The postcode is 6603. It falls within the Western Australia - Wheat Belt region. The local government area is Wongan-Ballidu.
According to the 2021 Census, Lake Ninan has a population of 17 with a median age of 58. The median weekly household income is $2,624, above the WA average. The Indigenous population is 3 (17.6% of residents).
Housing in Lake Ninan includes a median monthly mortgage repayment of $2,167, 11 total dwellings. These housing costs sit above the WA average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Lake Ninan scores in decile 7 out of 10, which is above the national average.
Lake Ninan is part of the Wheat Belt - North statistical area in Western Australia.
Lake Ninan details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 6603 |
| State | Western Australia (WA) |
| Phone Area Code | 08 |
| Population (2021) | 17 |
| Median Age | 58 years |
| Median Household Income (Census 2021) | $2,624/week |
| Median Personal Income (Census 2021) | $1,343/week |
| Median Monthly Mortgage (Census 2021) | $2,167 |
| Average Household Size | 2.3 persons |
| Area | 242.4 km² |
| Population Density | 0/km² |
| Total Dwellings | 11 |
| Australian Citizens | 88.2% |
| Indigenous Population | 3 (17.6%) |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 7/10 (above average) |
| Latitude | -30.9424256 |
| Longitude | 116.6396565 |
| Distance from Perth | 134 km |
| Region (SA4) | Western Australia - Wheat Belt |
| Area (SA3) | Wheat Belt - North |
| Local Government | Wongan-Ballidu |
| Federal Electorate | Durack |
| State Electorate | Moore (Agricultural) |
| Time Zone | AWST (UTC+8), Australia/Perth (standard time) |
Age Profile
Show counts
| 0–14 years | 0 (0.0%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 4 (23.5%) |
| 45–64 years | 0 (0.0%) |
| 65+ years | 4 (23.5%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Diabetes | 4 (23.5%) |
| Arthritis | 3 (17.6%) |
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 | 0 (0.0%) |
| 3+ vehicles | 4 (100.0%) |
Suburbs Near Lake Ninan
Same Postcode (6603)
More Lake Ninan 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.