New South Wales · Postcode 2259
Mardi postcode and suburb data
New South Wales · Phone area code 02 · 67 km from Sydney
Suburb snapshot
Mardi 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.
Detailed comparison table
Mardi vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Mardi | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,955 ≈NSW | $1,931 | $1,836 |
| Rent/wk | $440 ≈NSW | $445 | $390 |
| Mortgage/month | $1,913 -NSW | $2,247 | $1,958 |
| Median age | 37 | 45.0 | 45.0 |
| SEIFA decile | 7/10 ≈NSW | 6.0/10 | 6.0/10 |
| Unemployment | 4.0% -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.
Mardi is a locality 67 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2259. It falls within the Newcastle and Lake Macquarie region. The local government area is Central Coast (NSW).
According to the 2021 Census, Mardi has a population of 3,598 with a median age of 37. The median weekly household income is $1,955, close to the NSW average. The unemployment rate is 4.0%, lower than the NSW average. The Indigenous population is 153 (4.3% of residents).
Housing in Mardi includes a median weekly rent of $440, median monthly mortgage repayment of $1,913, with 1,228 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 69.9% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mardi scores in decile 7 out of 10, which is above the national average.
Mardi is part of the Lake Macquarie - West statistical area in New South Wales.
Mardi details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2259 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 3,598 |
| Median Age | 37 years |
| Median Household Income (Census 2021) | $1,955/week |
| Median Personal Income (Census 2021) | $790/week |
| Median Weekly Rent (Census 2021) | $440 |
| Median Monthly Mortgage (Census 2021) | $1,913 |
| Average Household Size | 2.8 persons |
| Area | 9.5 km² |
| Population Density | 379/km² |
| Total Dwellings | 1,228 |
| Australian Citizens | 90.8% |
| Indigenous Population | 153 (4.3%) |
| Unemployment Rate | 4.0% |
| SEIFA IRSAD Decile | 7/10 (above average) |
| Latitude | -33.29 |
| Longitude | 151.41 |
| Distance from Sydney | 67 km |
| Region (SA4) | Newcastle and Lake Macquarie |
| Area (SA3) | Lake Macquarie - West |
| Local Government | Central Coast (NSW) |
| Federal Electorate | Dobell |
| State Electorate | Wyong |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 754 (21.0%) |
| 15–24 years | 518 (14.4%) |
| 25–44 years | 889 (24.7%) |
| 45–64 years | 914 (25.4%) |
| 65+ years | 526 (14.6%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 361 (10.0%) |
| Arthritis | 335 (9.3%) |
| Diabetes | 180 (5.0%) |
| Heart Disease | 137 (3.8%) |
| Cancer | 114 (3.2%) |
| Lung Condition | 59 (1.6%) |
| Dementia | 15 (0.4%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 45 (3.7%) |
| 1 vehicle | 406 (33.1%) |
| 2 vehicles | 478 (39.0%) |
| 3+ vehicles | 297 (24.2%) |
Suburbs Near Mardi
Same Postcode (2259)
More Mardi 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.