New South Wales · Postcode 2370
Diehard postcode and suburb data
New South Wales · Phone area code 02 · 473 km from Sydney
Suburb snapshot
Diehard 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 Diehard ranks: household income sits in the bottom 10% of NSW suburbs.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Diehard vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Diehard | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $420 -NSW | $1,931 | $1,836 |
| Rent/wk | $20 -NSW | $445 | $390 |
| Median age | 51 | 45.0 | 45.0 |
| SEIFA decile | 5/10 ≈NSW | 6.0/10 | 6.0/10 |
| Unemployment | 37.5% +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.
Diehard is a locality 473 km from Sydney in New South Wales, classified as outer regional by the ABS. The postcode is 2370. It falls within the New England and North West region. The local government area is Glen Innes Severn.
According to the 2021 Census, Diehard has a population of 62 with a median age of 51. The median weekly household income is $420, below the NSW average. The unemployment rate is 37.5%, higher than the NSW average. The Indigenous population is 8 (12.9% of residents).
Housing in Diehard includes a median weekly rent of $20, 25 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 85.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Diehard scores in decile 5 out of 10, which is around the national average.
Diehard is part of the Inverell - Tenterfield statistical area in New South Wales.
Diehard details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2370 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 62 |
| Median Age | 51 years |
| Median Household Income (Census 2021) | $420/week |
| Median Personal Income (Census 2021) | $406/week |
| Median Weekly Rent (Census 2021) | $20 |
| Average Household Size | 1.4 persons |
| Area | 87.9 km² |
| Population Density | 1/km² |
| Total Dwellings | 25 |
| Australian Citizens | 48.4% |
| Indigenous Population | 8 (12.9%) |
| Unemployment Rate | 37.5% |
| SEIFA IRSAD Decile | 5/10 (average) |
| Latitude | -29.6863893 |
| Longitude | 152.0969244 |
| Distance from Sydney | 473 km |
| Region (SA4) | New England and North West |
| Area (SA3) | Inverell - Tenterfield |
| Local Government | Glen Innes Severn |
| Federal Electorate | New England |
| State Electorate | Northern Tablelands |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 11 (17.7%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 16 (25.8%) |
| 45–64 years | 30 (48.4%) |
| 65+ years | 12 (19.4%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 8 (12.9%) |
| Asthma | 8 (12.9%) |
| Lung Condition | 6 (9.7%) |
| Diabetes | 3 (4.8%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 7 (26.9%) |
| 1 vehicle | 9 (34.6%) |
| 2 vehicles | 10 (38.5%) |
| 3+ vehicles | 0 (0.0%) |
Suburbs Near Diehard
Same Postcode (2370)
More Diehard 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.