15,912 ▲ +7.9%
Higher than 79% of statistical area 2 (sa2) areas.
- 2011: 14,747
- 2016: 15,453
- 2021: 15,912
The number of people who usually live in the area, counted on Census night.
Williamstown · Statistical Area 2 (SA2)
Demographics & Identity in Williamstown
Who lives here — how many people, how old they are, and how communities identify.
A typical resident in Williamstown is 45 years old, which is much higher than most similar areas. The population has grown by 7.9% since 2011 to reach 15,912 people. This is a notably older community compared to both Victoria and Australia.
15,912
▲ +7.9%
- 1–1: 40 areas
- 1–2: 0 areas
- 2–3: 0 areas
- 3–4: 12 areas
- 4–6: 6 areas
- 6–9: 9 areas
- 9–13: 10 areas
- 13–19: 7 areas
- 19–27: 17 areas
- 27–39: 6 areas
- 39–56: 5 areas
- 56–81: 4 areas
- 81–116: 1 area
- 116–168: 5 areas
- 168–242: 3 areas
- 242–349: 4 areas
- 349–503: 2 areas
- 503–725: 9 areas
- 725–1,045: 3 areas
- 1,045–1,506: 5 areas
- 1,506–2,171: 31 areas
- 2,171–3,130: 83 areas
- 3,130–4,513: 217 areas
- 4,513–6,507: 318 areas
- 6,507–9,382: 402 areas
- 9,382–13,526: 546 areas
- 13,526–19,501: 496 areas
- 19,501–28,116: 231 areas
All statistical area 2 (sa2) areas, 2021. The marker is Williamstown — higher than 79% of areas.
Population
How many people, and the typical age.
The population grew by about 1,165 people between 2011 and 2021. This growth has coincided with an ageing trend, as the typical resident is now 4 years older than they were in 2011.
45 yrs ▲ +9.8%
Older than 78% of statistical area 2 (sa2) areas.
- 2011: 41 yrs
- 2016: 42 yrs
- 2021: 45 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Older adults aged 45 to 64 make up the largest group at 32.3%. While the proportion of children has fallen by 2.7 percentage points since 2011, the share of people aged 65 and over rose by 5.1 points to 18.2%.
18.2% ▲ +38.9%
Higher than 55% of statistical area 2 (sa2) areas.
- 2011: 13.1%
- 2016: 14.9%
- 2021: 18.2%
Share of the population aged 65 years and over.
17.6% ▼ -13.4%
Lower than 54% of statistical area 2 (sa2) areas.
- 2011: 20.3%
- 2016: 18.9%
- 2021: 17.6%
Share of the population aged under 15 years.
Age structure
View on map →In Williamstown, the largest group is Older adults (45–64) at 32%, followed by Young adults (25–44) (20%) and Seniors (65+) (18%).
Identity & relationships
First Nations identity and marital status.
Most residents are married, accounting for 50.5% of the population. People identifying as Aboriginal or Torres Strait Islander make up 0.7%, which is much lower than most similar areas.
0.7% ▲ +75.8%
Lower than 82% of statistical area 2 (sa2) areas.
- 2011: 0.4%
- 2016: 0.5%
- 2021: 0.7%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
10.3% ▲ +20.3%
Lower than 71% of statistical area 2 (sa2) areas.
- 2011: 8.6%
- 2016: 9.9%
- 2021: 10.3%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Williamstown, Married is the majority at 51%; Never married is next at 33%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Williamstown
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Williamstown [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/213021346/williamstown/topic/demographics-identity