Cardiff at a glance
Population
6,318
Median age 38
The brief
What to know about Cardiff.
The postcode for Cardiff is 2285 (NSW).
Cardiff (2285) sits in the Newcastle region of NSW.
Cardiff has roughly 6,318 residents, with a typical family-age mix. Households are mostly owner-occupied.
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Day to day
What it’s like to live here.
Summer days here average around 25°C (mild), winter mornings around 8°C (mild). Annual rainfall lands at about 1143mm. Data comes from the Bureau of Meteorology's Newcastle Nobbys Signal station, 25.0km away.
Schooling within or near the suburb covers 11 government primary, 3 government secondary, 2 Catholic, 3 independent.
Who lives here
Demographics.
The 2021 Census put Cardiff's population at 6,318, with a median age of 38. That sits as a typical family-age mix. Households are mostly owner-occupied (66% own, 31% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (67% family households, 29% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
6,318
Median age
38
Family households
67%
Lone person
29%
Demographics data as of May 2026· ABS 2021 Census
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Sales data as of May 2026· rental-nsw
Rental and ownership
Weekly rent (house)
$400/wk
Weekly rent (unit)
$375/wk
Owner occupied
66%
Renter occupied
31%
At a deeper level
6,318
Median age: 38
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Safety
Crime and safety.
904
total offences in 2025
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of January 2025· State Police Open Data
Place
Location.
Amenities
Transport
Education
Schools in Cardiff.
Local schools for Cardiff
View the catchment for each school to find out more.
Government School Catchment
Cardiff North Public School
Cardiff Public School
Cardiff High School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
1143 mm
Hottest Month (avg max)
24.7°C
Coldest Month (avg min)
8.2°C
Monthly Rainfall (mm)
Weather data from BOM station Newcastle Nobbys Signal (25 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Cardiff.
- What is the Cardiff postcode?
- Cardiff is in the 2285 postcode, in NSW, in the Newcastle City Council region.
- Where is Cardiff?
- Cardiff is a regional suburb in NSW, postcode 2285, in the Newcastle City Council region.
- What is the average rent in Cardiff?
- The median weekly rent for houses is $400, for units it's $375.
- What schools are in Cardiff?
- There are 20 schools serving Cardiff on this page, including Cardiff North Public School, St Kevin's Primary School, Cardiff Public School.
- What suburbs are near Cardiff?
- Cardiff is close to Cardiff Heights, Cardiff South, Garden Suburb, Glendale, Macquarie Hills.
- What is the population of Cardiff?
- The population of Cardiff is approximately 6,318 (2021 Census). The median age is 38.
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
Always dated
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