17,553 ▲ +559.9%
Higher than 85% of statistical area 2 (sa2) areas.
- 2011: 2,660
- 2016: 3,040
- 2021: 17,553
The number of people who usually live in the area, counted on Census night.
Rockbank - Mount Cottrell · Statistical Area 2 (SA2)
Demographics & Identity in Rockbank - Mount Cottrell
Who lives here — how many people, how old they are, and how communities identify.
One of the youngest areas at this level, Rockbank - Mount Cottrell has seen its population skyrocket by 560% since 2011. This rapid growth has created a community where nearly half of all residents are young adults aged between 25 and 44.
17,553
▲ +559.9%
- 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 Rockbank - Mount Cottrell — higher than 85% of areas.
Population
How many people, and the typical age.
The population grew by about 14,893 people since 2011 to reach 17,553. The typical resident is now just 31 years old, which is 7 years younger than the national figure and 6 years younger than it was in 2011.
31 yrs ▼ -16.2%
Younger than 94% of statistical area 2 (sa2) areas.
- 2011: 37 yrs
- 2016: 36 yrs
- 2021: 31 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 24.6% of the population, which is well above the 18.2% national figure. In contrast, seniors aged 65 and over are far below the national average at just 3.8%.
3.8% ▼ -52.6%
Lower than 99% of statistical area 2 (sa2) areas.
- 2011: 8.0%
- 2016: 9.5%
- 2021: 3.8%
Share of the population aged 65 years and over.
24.6% ▲ +146.6%
Higher than 92% of statistical area 2 (sa2) areas.
- 2011: 10.0%
- 2016: 10.2%
- 2021: 24.6%
Share of the population aged under 15 years.
Age structure
View on map →In Rockbank - Mount Cottrell, the largest group is Young adults (25–44) at 48%, followed by Children (0–14) (25%) and Older adults (45–64) (13%).
Identity & relationships
First Nations identity and marital status.
Aboriginal and Torres Strait Islander people make up 2.2% of the population, which is a little above the Victorian figure. Most residents are married (53.9%), while 11.1% are in a de facto relationship.
2.2% ▼ -32.6%
Higher than 51% of statistical area 2 (sa2) areas.
- 2011: 3.3%
- 2016: 4.2%
- 2021: 2.2%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
11.1% ▲ +57.7%
Lower than 62% of statistical area 2 (sa2) areas.
- 2011: 7.0%
- 2016: 8.6%
- 2021: 11.1%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Rockbank - Mount Cottrell, Married is the majority at 54%; Never married is next at 37%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Rockbank - Mount Cottrell
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Rockbank - Mount Cottrell [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/213041359/rockbank-mount-cottrell/topic/demographics-identity