New South Wales · Postcode 2579
Big Hill postcode and suburb data
New South Wales · Phone area code 02 · 134 km from Sydney
Suburb snapshot
Big Hill at a glance vs NSW
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against NSW
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Big Hill ranks: household income is in the top 25% of NSW suburbs; rents are among the top 10% in NSW.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Big Hill vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Big Hill | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $2,333 +NSW | $1,931 | $1,836 |
| Rent/wk | $550 +NSW | $445 | $390 |
| Mortgage/month | $1,777 -NSW | $2,247 | $1,958 |
| Median age | 53 | 45.0 | 45.0 |
| SEIFA decile | 7/10 ≈NSW | 6.0/10 | 6.0/10 |
| Unemployment | 0.0% -NSW | 5.0% | 5.0% |
Green pill = at least 10% above the NSW average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Big Hill is a locality 134 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2579. It falls within the Southern Highlands and Shoalhaven region. The local government area is Upper Lachlan Shire.
According to the 2021 Census, Big Hill has a population of 78 with a median age of 53. The median weekly household income is $2,333, above the NSW average. The Indigenous population is 7 (9.0% of residents).
Housing in Big Hill includes a median weekly rent of $550, median monthly mortgage repayment of $1,777, with 15 total dwellings. These housing costs sit above the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Big Hill scores in decile 7 out of 10, which is above the national average.
Big Hill is part of the Southern Highlands statistical area in New South Wales.
Big Hill details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2579 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 78 |
| Median Age | 53 years |
| Median Household Income (Census 2021) | $2,333/week |
| Median Personal Income (Census 2021) | $933/week |
| Median Weekly Rent (Census 2021) | $550 |
| Median Monthly Mortgage (Census 2021) | $1,777 |
| Average Household Size | 2.6 persons |
| Area | 186.1 km² |
| Population Density | 0/km² |
| Total Dwellings | 15 |
| Australian Citizens | 65.4% |
| Indigenous Population | 7 (9.0%) |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 7/10 (above average) |
| Latitude | -34.5485 |
| Longitude | 150.00121 |
| Distance from Sydney | 134 km |
| Region (SA4) | Southern Highlands and Shoalhaven |
| Area (SA3) | Southern Highlands |
| Local Government | Upper Lachlan Shire |
| Federal Electorate | Hume |
| State Electorate | Goulburn |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 9 (11.5%) |
| 15–24 years | 11 (14.1%) |
| 25–44 years | 19 (24.4%) |
| 45–64 years | 30 (38.5%) |
| 65+ years | 14 (17.9%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 9 (11.5%) |
| Asthma | 9 (11.5%) |
| Heart Disease | 9 (11.5%) |
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 | 3 (15.0%) |
| 2 vehicles | 8 (40.0%) |
| 3+ vehicles | 9 (45.0%) |
Suburbs Near Big Hill
Same Postcode (2579)
More Big Hill 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.