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Western Australia · Postcode 6432
South Boulder postcode and suburb data
Western Australia · Phone area code 08 · 550 km from Perth
Suburb snapshot
South Boulder 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 South Boulder ranks: SEIFA decile 1 places it in the bottom 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
South Boulder vs the WA average and the national average, using population-weighted 2021 Census data.
| Metric | South Boulder | WA avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,848 ≈WA | $1,891 | $1,836 |
| Rent/wk | $300 -WA | $355 | $390 |
| Mortgage/month | $1,250 -WA | $1,890 | $1,958 |
| Median age | 35 | 43.0 | 45.0 |
| SEIFA decile | 1/10 -WA | 6.0/10 | 6.0/10 |
| Unemployment | 5.8% +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.
South Boulder is a very remote community in Western Australia, with postcode 6432. It lies roughly 550 km from Perth, classified by the ABS as very remote Australia. The area is administered by Kalgoorlie-Boulder.
According to the 2021 Census, South Boulder has a population of 1,506 with a median age of 35. The median weekly household income is $1,848, close to the WA average. The unemployment rate is 5.8%, higher than the WA average. The Indigenous population is 333 (22.1% of residents).
Housing in South Boulder includes a median weekly rent of $300, median monthly mortgage repayment of $1,250, with 421 total dwellings. Housing costs in the area sit below the WA average. Owner-occupied dwellings (owned or mortgaged) make up 70.3% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, South Boulder scores in decile 1 out of 10, which is well below the national average.
South Boulder is part of the Goldfields statistical area in Western Australia.
South Boulder details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 6432 |
| State | Western Australia (WA) |
| Phone Area Code | 08 |
| Population (2021) | 1,506 |
| Median Age | 35 years |
| Median Household Income (Census 2021) | $1,848/week |
| Median Personal Income (Census 2021) | $909/week |
| Median Weekly Rent (Census 2021) | $300 |
| Median Monthly Mortgage (Census 2021) | $1,250 |
| Average Household Size | 2.4 persons |
| Area | 7.8 km² |
| Population Density | 192/km² |
| Total Dwellings | 421 |
| Australian Citizens | 58.0% |
| Indigenous Population | 333 (22.1%) |
| Unemployment Rate | 5.8% |
| SEIFA IRSAD Decile | 1/10 (well below average) |
| Latitude | -30.7916935 |
| Longitude | 121.4956213 |
| Distance from Perth | 550 km |
| Region (SA4) | Western Australia - Outback (South) |
| Area (SA3) | Goldfields |
| Local Government | Kalgoorlie-Boulder |
| Federal Electorate | O'Connor |
| State Electorate | Kalgoorlie (Mining and Pastoral) |
| Time Zone | AWST (UTC+8), Australia/Perth (standard time) |
Age Profile
Show counts
| 0–14 years | 250 (16.6%) |
| 15–24 years | 221 (14.7%) |
| 25–44 years | 471 (31.3%) |
| 45–64 years | 431 (28.6%) |
| 65+ years | 128 (8.5%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 101 (6.7%) |
| Arthritis | 87 (5.8%) |
| Diabetes | 66 (4.4%) |
| Heart Disease | 45 (3.0%) |
| Lung Condition | 21 (1.4%) |
| Cancer | 21 (1.4%) |
| Dementia | 3 (0.2%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 17 (4.2%) |
| 1 vehicle | 141 (34.5%) |
| 2 vehicles | 148 (36.2%) |
| 3+ vehicles | 103 (25.2%) |
Suburbs Near South Boulder
Same Postcode (6432)
More South Boulder 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.