12,756 —
Higher than 66% of statistical area 2 (sa2) areas.
- 2016: 12,250
- 2021: 12,756
The number of people who usually live in the area, counted on Census night.
Colac · Statistical Area 2 (SA2)
Who lives here — how many people, how old they are, and how communities identify.
A typical resident in Colac is 42, making the area noticeably older than both Victoria and Australia. This gap is driven by a high proportion of seniors, who now make up nearly a quarter of the population. The community has grown since 2016, adding about 506 people to reach a total of 12,756.
All statistical area 2 (sa2) areas, 2021. The marker is Colac — higher than 66% of areas.
How many people, and the typical age.
The population of 12,756 is larger than about 67% of similar areas. The typical age of 42 has remained steady since 2016, staying 4 years older than the state and national figures.
12,756 —
Higher than 66% of statistical area 2 (sa2) areas.
The number of people who usually live in the area, counted on Census night.
42 yrs —
Older than 64% of statistical area 2 (sa2) areas.
Half the population is older than this age, and half younger.
How the population splits across age groups.
Seniors aged 65 and over make up 24.1% of the population, which is well above the national figure of 17.2%. This rise in older residents is mirrored by a small drop in children under 15, who now make up 17.0% of the area.
24.1% —
Higher than 83% of statistical area 2 (sa2) areas.
Share of the population aged 65 years and over.
17.0% —
Lower than 60% of statistical area 2 (sa2) areas.
Share of the population aged under 15 years.
Colac splits fairly evenly between Seniors (65+) (24%) and Young adults (25–44) (24%), with Older adults (45–64) at 24%.
First Nations identity and marital status.
People in de facto relationships make up 12.3% of the community, a small increase since 2016. Around 1.5% of residents identify as Aboriginal or Torres Strait Islander, which is about the same as the Victorian average.
1.5% —
Lower than 60% of statistical area 2 (sa2) areas.
Share of people who identify as Aboriginal and/or Torres Strait Islander.
12.3% —
Higher than 54% of statistical area 2 (sa2) areas.
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
In Colac, the largest group is Married at 42%, followed by Never married (37%) and Divorced (10%).
Australian Bureau of Statistics. (2021). Demographics & Identity in Colac [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/217031472/colac/topic/demographics-identity