17,215 ▲ +7.4%
Higher than 89% of suburb / locality areas.
- 2011: 16,033
- 2016: 16,463
- 2021: 17,215
The number of people who usually live in the area, counted on Census night.
Seaford · Suburb / Locality
Demographics & Identity in Seaford
Who lives here — how many people, how old they are, and how communities identify.
Diverse household structures and a mix of age groups shape daily life in Seaford. With 17,215 residents, it is among the largest areas of its type. The typical person here is 40 years old, making the area a little older than both the state and national figures.
17,215
▲ +7.4%
- 1–1: 689 areas
- 1–2: 0 areas
- 2–3: 119 areas
- 3–5: 108 areas
- 5–7: 243 areas
- 7–11: 241 areas
- 11–16: 514 areas
- 16–24: 579 areas
- 24–36: 898 areas
- 36–53: 1059 areas
- 53–79: 1168 areas
- 79–117: 1203 areas
- 117–174: 1171 areas
- 174–258: 1010 areas
- 258–384: 856 areas
- 384–571: 670 areas
- 571–850: 616 areas
- 850–1,263: 567 areas
- 1,263–1,879: 520 areas
- 1,879–2,794: 590 areas
- 2,794–4,154: 679 areas
- 4,154–6,177: 585 areas
- 6,177–9,186: 528 areas
- 9,186–13,659: 405 areas
- 13,659–20,311: 195 areas
- 20,311–30,202: 96 areas
- 30,202–44,910: 33 areas
- 44,910–66,781: 10 areas
All suburb / locality areas, 2021. The marker is Seaford — higher than 89% of areas.
Population
How many people, and the typical age.
Seaford is one of the largest areas at this level with a total population of 17,215 people.
40 yrs ▲ +2.6%
Younger than 71% of suburb / locality areas.
- 2011: 39 yrs
- 2016: 40 yrs
- 2021: 40 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
The age profile is balanced, as children under 15 and seniors aged 65 and over each make up about 18% of the population. This is about the same as the figures for Victoria and Australia.
17.9% ▲ +14.0%
Lower than 54% of suburb / locality areas.
- 2011: 15.7%
- 2016: 17.4%
- 2021: 17.9%
Share of the population aged 65 years and over.
17.6% ▲ +6.7%
Higher than 54% of suburb / locality areas.
- 2011: 16.5%
- 2016: 16.6%
- 2021: 17.6%
Share of the population aged under 15 years.
Age structure
View on map →Seaford splits fairly evenly between Young adults (25–44) (29%) and Older adults (45–64) (26%), with Seniors (65+) at 18%.
Identity & relationships
First Nations identity and marital status.
De facto relationships are much more common here than in most areas, sitting well above the state and national figures at 15.2%. Aboriginal and Torres Strait Islander people make up 1.5% of the population, which is about the same as the Victorian average.
1.5% ▲ +67.6%
Lower than 55% of suburb / locality areas.
- 2011: 0.9%
- 2016: 1.3%
- 2021: 1.5%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
15.2% ▲ +23.3%
Higher than 72% of suburb / locality areas.
- 2011: 12.3%
- 2016: 14.4%
- 2021: 15.2%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →Seaford splits fairly evenly between Never married (40%) and Married (37%), with Divorced at 13%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Seaford
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Seaford [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL22249/seaford/topic/demographics-identity