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Demographics & Identity
Castlemaine · Statistical Area 2 (SA2)
👥 Demographics & Identity in Castlemaine
Who lives here — how many people, how old they are, and how communities identify.
Population growth and a shifting age profile have defined Castlemaine since 2011, with the area adding about 1,619 people over the decade. It is now a far older community than the national average, with the typical resident aged 50.
Part of
Postcode 3450, VIC
LGA Mount Alexander
Capital Rest of Vic.
State Victoria
Open map →
📍 Castlemaine, Statistical Area 2 (SA2)
Where Castlemaine sits — Total population
?
11,352
▲ +16.6%
1
10
100
1.0k
10k
28k
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 Castlemaine — higher than 60% of areas.
Total population compared with the state and national average
Castlemaine 11,352
3450, VIC
7,588
Victoria
6,503,491
Australia
25,422,788
Population
How many people, and the typical age.
The population grew by 17% between 2011 and 2021 to reach 11,352 people. Residents are far older than those in Victoria and Australia, with the typical age rising 4 years since 2011.
11,352
▲ +16.6%
Higher than 60% of statistical area 2 (sa2) areas.
9.5k
10k
11k
11k
12k
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
9,733
10,583
11,352
2011: 9,733
2016: 10,583
2021: 11,352
The number of people who usually live in the area, counted on Census night.
50 yrs
▲ +8.7%
Older than 90% of statistical area 2 (sa2) areas.
46
48
50
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
46 yrs
47 yrs
50 yrs
2011: 46 yrs
2016: 47 yrs
2021: 50 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Seniors aged 65 and over make up 29.2% of the area, a figure far above the national average. This older profile is mirrored by a low number of children under 15, who make up 14.2% of the population.
29.2%
▲ +30.6%
Higher than 93% of statistical area 2 (sa2) areas.
20.0%
22.0%
24.0%
26.0%
28.0%
30.0%
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
22.4%
24.5%
29.2%
2011: 22.4%
2016: 24.5%
2021: 29.2%
Share of the population aged 65 years and over.
14.2%
▼ -14.5%
Lower than 85% of statistical area 2 (sa2) areas.
14.0%
15.0%
16.0%
17.0%
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
16.6%
15.1%
14.2%
2011: 16.6%
2016: 15.1%
2021: 14.2%
Share of the population aged under 15 years.
Castlemaine splits fairly evenly between Seniors (65+) (29%) and Older adults (45–64) (28%), with Young adults (25–44) at 21%.
Identity & relationships
First Nations identity and marital status.
People in de facto relationships account for 15.9% of the community, which is well above the figures for Victoria and Australia. Aboriginal and Torres Strait Islander people make up 1.3% of the population, remaining steady since 2011.
1.3%
▲ +2.5%
Lower than 64% of statistical area 2 (sa2) areas.
1.3%
1.3%
1.3%
1.3%
1.3%
1.4%
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
1.3%
1.3%
1.3%
2011: 1.3%
2016: 1.3%
2021: 1.3%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
15.9%
▲ +35.9%
Higher than 86% of statistical area 2 (sa2) areas.
12.0%
14.0%
16.0%
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
11.7%
13.5%
15.9%
2011: 11.7%
2016: 13.5%
2021: 15.9%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Castlemaine splits fairly evenly between Married (40%) and Never married (36%), with Divorced at 13%.
Age & sex structure
Males
Females
85+
80–84
75–79
70–74
65–69
60–64
55–59
50–54
45–49
40–44
35–39
30–34
25–29
20–24
15–19
10–14
5–9
0–4
509
509
85+: 85+: 168 males; 85+: 302 females
80–84: 80–84: 199 males; 80–84: 249 females
75–79: 75–79: 257 males; 75–79: 358 females
70–74: 70–74: 377 males; 70–74: 456 females
65–69: 65–69: 442 males; 65–69: 509 females
60–64: 60–64: 420 males; 60–64: 429 females
55–59: 55–59: 352 males; 55–59: 428 females
50–54: 50–54: 385 males; 50–54: 395 females
45–49: 45–49: 360 males; 45–49: 389 females
40–44: 40–44: 348 males; 40–44: 329 females
35–39: 35–39: 361 males; 35–39: 330 females
30–34: 30–34: 338 males; 30–34: 258 females
25–29: 25–29: 275 males; 25–29: 179 females
20–24: 20–24: 202 males; 20–24: 128 females
15–19: 15–19: 260 males; 15–19: 245 females
10–14: 10–14: 313 males; 10–14: 268 females
5–9: 5–9: 277 males; 5–9: 282 females
0–4: 0–4: 260 males; 0–4: 216 females
Sources
Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0 ).
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Castlemaine [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/202021027/castlemaine/topic/demographics-identity
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