New South Wales · Postcode 2330
Mount Olive postcode and suburb data
New South Wales · Phone area code 02 · 162 km from Sydney
Suburb snapshot
Mount Olive 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 Mount Olive ranks: household income is in the top 25% of NSW suburbs.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Mount Olive vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Mount Olive | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $2,399 +NSW | $1,931 | $1,836 |
| Rent/wk | $80 -NSW | $445 | $390 |
| Mortgage/month | $2,578 +NSW | $2,247 | $1,958 |
| Median age | 47 | 45.0 | 45.0 |
| SEIFA decile | 4/10 -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.
Mount Olive is a locality 162 km from Sydney in New South Wales, classified as outer regional by the ABS. The postcode is 2330. It falls within the Sydney - Baulkham Hills and Hawkesbury region. The local government area is Singleton.
According to the 2021 Census, Mount Olive has a population of 135 with a median age of 47. The median weekly household income is $2,399, above the NSW average. The Indigenous population is 11 (8.1% of residents).
Housing in Mount Olive includes a median weekly rent of $80, median monthly mortgage repayment of $2,578, with 48 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, Mount Olive scores in decile 4 out of 10, which is below the national average.
Mount Olive is part of the Hawkesbury statistical area in New South Wales.
Mount Olive details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2330 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 135 |
| Median Age | 47 years |
| Median Household Income (Census 2021) | $2,399/week |
| Median Personal Income (Census 2021) | $725/week |
| Median Weekly Rent (Census 2021) | $80 |
| Median Monthly Mortgage (Census 2021) | $2,578 |
| Average Household Size | 2.6 persons |
| Area | 38.1 km² |
| Population Density | 4/km² |
| Total Dwellings | 48 |
| Australian Citizens | 95.6% |
| Indigenous Population | 11 (8.1%) |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 4/10 (below average) |
| Latitude | -32.4140456 |
| Longitude | 151.2104248 |
| Distance from Sydney | 162 km |
| Region (SA4) | Sydney - Baulkham Hills and Hawkesbury |
| Area (SA3) | Hawkesbury |
| Local Government | Singleton |
| Federal Electorate | Hunter |
| State Electorate | Upper Hunter |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 15 (11.1%) |
| 15–24 years | 14 (10.4%) |
| 25–44 years | 23 (17.0%) |
| 45–64 years | 49 (36.3%) |
| 65+ years | 26 (19.3%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 23 (17.0%) |
| Arthritis | 15 (11.1%) |
| Heart Disease | 7 (5.2%) |
| Lung Condition | 6 (4.4%) |
| Diabetes | 5 (3.7%) |
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 | 9 (22.0%) |
| 2 vehicles | 10 (24.4%) |
| 3+ vehicles | 22 (53.7%) |
Suburbs Near Mount Olive
Same Postcode (2330)
More Mount Olive 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.