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New South Wales · Postcode 2540
Mondayong postcode and suburb data
New South Wales · Phone area code 02 · 158 km from Sydney
Suburb snapshot
Mondayong 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 Mondayong ranks: household income is in the top 10% of NSW suburbs; rents sit in the cheapest 10% in NSW.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Mondayong vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Mondayong | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $2,750 +NSW | $1,931 | $1,836 |
| Median age | 30 | 45.0 | 45.0 |
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.
Mondayong is a locality 158 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2540. It falls within the Other Territories region. The local government area is Shoalhaven.
According to the 2021 Census, Mondayong has a population of 9 with a median age of 30. The median weekly household income is $2,750, above the NSW average.
Mondayong is part of the Jervis Bay statistical area in New South Wales.
Mondayong details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2540 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 9 |
| Median Age | 30 years |
| Median Household Income (Census 2021) | $2,750/week |
| Median Personal Income (Census 2021) | $575/week |
| Average Household Size | 5 persons |
| Area | 81.8 km² |
| Population Density | 0/km² |
| Australian Citizens | 88.9% |
| Latitude | -35.1610454 |
| Longitude | 150.4998939 |
| Distance from Sydney | 158 km |
| Region (SA4) | Other Territories |
| Area (SA3) | Jervis Bay |
| Local Government | Shoalhaven |
| Federal Electorate | Gilmore |
| State Electorate | Unclassified (OT) |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 0 (0.0%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 4 (44.4%) |
| 45–64 years | 0 (0.0%) |
| 65+ years | 0 (0.0%) |
Suburbs Near Mondayong
Same Postcode (2540)
More Mondayong 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.