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New South Wales · Postcode 2305
New Lambton Heights postcode and suburb data
New South Wales · Phone area code 02 · 114 km from Sydney
Suburb snapshot
New Lambton Heights 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 New Lambton Heights ranks: household income is in the top 10% of NSW suburbs; SEIFA decile 10 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
New Lambton Heights vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | New Lambton Heights | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $2,742 +NSW | $1,931 | $1,836 |
| Rent/wk | $483 ≈NSW | $445 | $390 |
| Mortgage/month | $2,330 ≈NSW | $2,247 | $1,958 |
| Median age | 41 | 45.0 | 45.0 |
| SEIFA decile | 10/10 +NSW | 6.0/10 | 6.0/10 |
| Unemployment | 3.6% -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.
Postcode 2305 covers New Lambton Heights, an inland suburb of Sydney about 114 km from the city centre. It forms part of the Newcastle and Lake Macquarie region of New South Wales. Local government services are provided by Lake Macquarie.
According to the 2021 Census, New Lambton Heights has a population of 2,610 with a median age of 41. The median weekly household income is $2,742, above the NSW average. The unemployment rate is 3.6%, lower than the NSW average. The Indigenous population is 68 (2.6% of residents).
Housing in New Lambton Heights includes a median weekly rent of $483, median monthly mortgage repayment of $2,330, with 873 total dwellings. Owner-occupied dwellings (owned or mortgaged) make up 87.5% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, New Lambton Heights scores in decile 10 out of 10, which is well above the national average.
Schools in New Lambton Heights include New Lambton Heights Infants School and John Hunter Hospital School.
New Lambton Heights is part of the Newcastle statistical area in New South Wales.
New Lambton Heights details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2305 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 2,610 |
| Median Age | 41 years |
| Median Household Income (Census 2021) | $2,742/week |
| Median Personal Income (Census 2021) | $1,087/week |
| Median Weekly Rent (Census 2021) | $483 |
| Median Monthly Mortgage (Census 2021) | $2,330 |
| Average Household Size | 2.9 persons |
| Area | 3.0 km² |
| Population Density | 877/km² |
| Total Dwellings | 873 |
| Australian Citizens | 93.0% |
| Indigenous Population | 68 (2.6%) |
| Unemployment Rate | 3.6% |
| SEIFA IRSAD Decile | 10/10 (well above average) |
| Latitude | -32.9273592 |
| Longitude | 151.6903352 |
| Distance from Sydney | 114 km |
| Region (SA4) | Newcastle and Lake Macquarie |
| Area (SA3) | Newcastle |
| Local Government | Lake Macquarie |
| Federal Electorate | Newcastle |
| State Electorate | Wallsend |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 566 (21.7%) |
| 15–24 years | 320 (12.3%) |
| 25–44 years | 566 (21.7%) |
| 45–64 years | 727 (27.9%) |
| 65+ years | 429 (16.4%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 251 (9.6%) |
| Arthritis | 209 (8.0%) |
| Heart Disease | 94 (3.6%) |
| Cancer | 74 (2.8%) |
| Diabetes | 69 (2.6%) |
| Lung Condition | 24 (0.9%) |
| Dementia | 11 (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 | 9 (1.0%) |
| 1 vehicle | 203 (23.5%) |
| 2 vehicles | 442 (51.2%) |
| 3+ vehicles | 210 (24.3%) |
Schools in New Lambton Heights
ACARA 2025 school profiles for schools located in New Lambton Heights. ICSEA is shown where ACARA publishes it.
Suburbs Near New Lambton Heights
Same Postcode (2305)
More New Lambton Heights 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.