Seaham at a glance
Population
1,011
Median age 41
The brief
What to know about Seaham.
The postcode for Seaham is 2324 (NSW).
Seaham (2324) sits in the Maitland region of NSW.
Seaham has roughly 1,011 residents, with a typical family-age mix. Households are predominantly 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 14 government primary, 2 government secondary, 3 Catholic, 1 independent.
Who lives here
Demographics.
The 2021 Census put Seaham's population at 1,011, with a median age of 41. That sits as a typical family-age mix. Households are predominantly owner-occupied (92% own, 7% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (88% family households, 10% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
1,011
Median age
41
Family households
88%
Lone person
10%
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)
$330/wk
Weekly rent (unit)
$360/wk
Owner occupied
92%
Renter occupied
7%
At a deeper level
1,011
Median age: 41
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Safety
Crime and safety.
55
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 Seaham.
Local schools for Seaham
View the catchment for each school to find out more.
Government School Catchment
Seaham Public School
Mount Kanwary Public School
Hinton Public 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 Seaham.
- What is the Seaham postcode?
- Seaham is in the 2324 postcode, in NSW, in the Maitland City Council region.
- Where is Seaham?
- Seaham is a regional suburb in NSW, postcode 2324, in the Maitland City Council region.
- What is the average rent in Seaham?
- The median weekly rent for houses is $330, for units it's $360.
- What schools are in Seaham?
- There are 20 schools serving Seaham on this page, including Seaham Public School, Mount Kanwary Public School, Hinton Public School.
- What suburbs are near Seaham?
- Seaham is close to East Seaham, Brandy Hill, Nelsons Plains, Glen Oak, Eagleton.
- What is the population of Seaham?
- The population of Seaham is approximately 1,011 (2021 Census). The median age is 41.
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Side by side
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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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