433 ▲ +114.4%
Lower than 71% of urban centre areas.
- 2011: 202
- 2016: 194
- 2021: 433
The number of people who usually live in the area, counted on Census night.
Seaham · Urban Centre
Demographics & Identity in Seaham
Who lives here — how many people, how old they are, and how communities identify.
Much younger than most similar areas, Seaham (L) has seen its typical resident's age drop from 58 to 36 since 2011. The population more than doubled in that time to reach 433 people, creating a community with a noticeably higher share of children and fewer seniors than the national average.
433
▲ +114.4%
- 1–2: 3 areas
- 2–3: 0 areas
- 3–5: 0 areas
- 5–9: 0 areas
- 9–16: 2 areas
- 16–27: 1 area
- 27–47: 2 areas
- 47–81: 2 areas
- 81–139: 14 areas
- 139–241: 145 areas
- 241–418: 340 areas
- 418–723: 351 areas
- 723–1,252: 304 areas
- 1,252–2,168: 191 areas
- 2,168–3,752: 181 areas
- 3,752–6,495: 107 areas
- 6,495–11,242: 69 areas
- 11,242–19,459: 44 areas
- 19,459–33,683: 31 areas
- 33,683–58,304: 17 areas
- 58,304–100,921: 8 areas
- 100,921–174,689: 8 areas
- 174,689–302,378: 4 areas
- 302,378–523,401: 5 areas
- 523,401–905,982: 2 areas
- 905,982–1,568,210: 1 area
- 1,568,210–2,714,494: 2 areas
- 2,714,494–4,698,656: 2 areas
All urban centre areas, 2021. The marker is Seaham — lower than 71% of areas.
| Seaham | 433 |
|---|---|
| 2324, NSW | 25,443 |
| New South Wales | 8,072,163 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The typical resident is 36, which is noticeably younger than the New South Wales figure of 39. This reflects a sharp shift over the last decade, as the typical age was 58 in 2011.
36 yrs ▼ -37.9%
Younger than 82% of urban centre areas.
- 2011: 58 yrs
- 2016: 63 yrs
- 2021: 36 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Children under 15 make up 21.7% of the population, which is well above the national figure of 18.2%. Meanwhile, those aged 65 and over account for 12.2%, a figure that is well below the New South Wales average of 17.6%.
12.2% ▼ -66.4%
Lower than 83% of urban centre areas.
- 2011: 36.5%
- 2016: 47.9%
- 2021: 12.2%
Share of the population aged 65 years and over.
21.7% ▲ +52.0%
Higher than 78% of urban centre areas.
- 2011: 14.3%
- 2016: 5.7%
- 2021: 21.7%
Share of the population aged under 15 years.
Age structure
View on map →Seaham splits fairly evenly between Older adults (45–64) (26%) and Young adults (25–44) (24%), with Children (0–14) at 23%.
Identity & relationships
First Nations identity and marital status.
About 3.9% of residents are Aboriginal and Torres Strait Islander, which is about the same as the national figure. Most people are married (58.6%), while those in de facto relationships make up 10.5%, a result that is much lower than most similar areas.
3.9% ▲ +165.7%
Lower than 55% of urban centre areas.
- 2011: 1.5%
- 2016: 0.0%
- 2021: 3.9%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
10.5% ▲ +36.8%
Lower than 78% of urban centre areas.
- 2011: 7.7%
- 2016: 7.7%
- 2021: 10.5%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Seaham, Married is the majority at 58%; Never married is next at 30%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Seaham
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Seaham [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/ucl/UCL122117/seaham/topic/demographics-identity