Suburb profile · ABS Census 2021
Seaham suburb profile
Seaham, NSW · Postcode 2324
This Seaham suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Seaham, NSW (postcode 2324). Use it as a free suburb report covering population, median rent, household income, age, housing tenure and employment, plus how those figures changed since Census 2016— then compare Seaham with nearby suburbs.
Seaham at a glance
Population
1,011
Median rent
$360/wk
Household income
$2,312/wk
Median age
41
Seaham trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
Census 2011 → 2016 → 2021
-1.1% over 10 years
Population
1,011
was 1,007 in 2016
+4 · +0.4%
Median rent
$360/wk
was $400/wk in 2016
$40 · -10%
Household income
$2,312/wk
was $1,940/wk in 2016
+$372 · +19.2%
Median age
41
was 40 in 2016
+1 · +2.5%
Dig deeper: Seaham population growth · Seaham then and now
Seaham vs nearby & NSW
Median Census 2021 figures for Seaham, nearby suburbs (8), and the NSW state median (suburbs with 1,000+ people).
Rent
-14.3% vs area
- Seaham$360/wk
- Nearby$327.5/wk
- NSW$420/wk
Household income
+25.4% vs area
- Seaham$2,312/wk
- Nearby$1,144/wk
- NSW$1,843/wk
Median age
+2.5% vs area
- Seaham41
- Nearby49
- NSW40
Personal income
+3.8% vs area
- Seaham$839/wk
- Nearby$609/wk
- NSW$808/wk
Nearby uses the same postcode first, then larger suburbs in NSW.
Socio-economic profile
How Seaham compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Seaham sits above average for socio-economic advantage compared with suburbs Australia-wide. It shows strong access to economic resources.
Relative disadvantage (IRSD)
Decile 71,046.5
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 71,013.1
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 101,106.7
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 5961.1
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Seaham on the map
OpenStreetMap outline for Seaham, NSW.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Seaham people
- Population
- 1,011
- Median age
- 41
- Born overseas
- 5.9%
- Average household size
- 3.1
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Seaham income
- Median household income
- $2,312/wk
- Median personal income
- $839/wk
Median total weekly household income
Median total weekly personal income
Seaham housing
- Median rent
- $360/wk
- Median mortgage repayment
- $2,149/mo
- Separate houses
- 96.7%
- Flats & apartments
- 1.2%
- Owned outright
- 40.8%
- Mortgaged
- 50.5%
- Rented
- 7.2%
- Unoccupied dwellings
- 2.1%
Median weekly rent for rented dwellings
Median monthly mortgage repayment
Percentage of dwellings that are separate houses
Percentage of dwellings that are flats or apartments
Percentage of dwellings owned without a mortgage
Percentage of dwellings with a mortgage
Percentage of dwellings rented
Percentage of private dwellings unoccupied on Census night
Seaham work
- Employment to population
- 66.1%
- Unemployment rate
- 3.8%
- Year 12 or above
- 46.4%
Employed persons as a percentage of population aged 15+
Unemployed persons as a percentage of the labour force
Percentage with Year 12 or equivalent as highest school level
Nearby suburb profiles (near 2324)
Compare Seaham with nearby suburbs
Seaham in numbers
Seaham had 1,011 residents at the 2021 Census. The median age is 41, close to the typical NSW suburb. The average household has 3.1 people. 5.9% of residents were born overseas.
Among occupied homes, 40.8% own their home outright, 50.5% are paying a mortgage, 7.2% rent. Separate houses make up 96.7% of dwellings, with 1.2% in flats or apartments. Median rent was $360/wk, 10% below the typical NSW suburb.
Median household income was $2,312/wk, 28% above the typical NSW suburb. The unemployment rate on Census night was 3.8%. 46.4% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 7 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 0.4% (from 1,007 to 1,011). Median rent moved from $400/wk to $360/wk (-10%).
Seaham suburb FAQs
- What is the median rent in Seaham, NSW?
- The median weekly rent in Seaham was $360/wk at the 2021 Census (ABS).
- How many people live in Seaham, NSW?
- Seaham had 1,011 residents at the 2021 Census, up 0.4% from 2016.
- What is the median household income in Seaham?
- Median household income in Seaham was $2,312/wk at the 2021 Census.
- Do most people rent or own in Seaham?
- 7.2% of occupied homes in Seaham were rented, 40.8% were owned outright and 50.5% were owned with a mortgage.
About this Seaham suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Seaham. Where shown, 2016 values come from the 2016 State Suburbs (SSC) profile, linked via ABS geographic correspondence — boundaries are not always identical. Medians may be suppressed for very small areas. This is not financial or relocation advice — use it alongside current market data.
Source: ABS Census 2021. Methodology