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Demographics & Identity
3981, VIC · Postcode
👥 Demographics & Identity in 3981, VIC
Who lives here — how many people, how old they are, and how communities identify.
A much younger population than most similar areas defines postcode 3981, where the typical resident is just 36. The area has grown significantly, adding about 1,175 people since 2011 to reach a total population of 5,437.
Part of
LGA Cardinia
Capital Greater Melbourne
State Victoria
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📍 3981, VIC, Postcode
Where 3981, VIC sits — Total population
?
5,437
▲ +27.6%
1
10
100
1.0k
10k
100k
1–2: 1 area
2–2: 0 areas
2–4: 0 areas
4–5: 2 areas
5–8: 3 areas
8–12: 2 areas
12–19: 2 areas
19–29: 12 areas
29–44: 19 areas
44–67: 35 areas
67–102: 30 areas
102–155: 70 areas
155–237: 97 areas
237–360: 129 areas
360–549: 158 areas
549–836: 168 areas
836–1,273: 181 areas
1,273–1,938: 179 areas
1,938–2,951: 157 areas
2,951–4,493: 179 areas
4,493–6,842: 176 areas
6,842–10,418: 210 areas
10,418–15,865: 268 areas
15,865–24,158: 254 areas
24,158–36,786: 182 areas
36,786–56,016: 93 areas
56,016–85,299: 28 areas
85,299–129,888: 8 areas
All postcode areas, 2021. The marker is 3981, VIC — higher than 57% of areas.
Total population compared with the state and national average
3981, VIC 5,437
Cardinia
118,194
Victoria
6,503,491
Australia
25,422,788
Population
How many people, and the typical age.
The typical resident is 36, which is a little younger than the national figure of 38. This age has dropped by two years since the 2011 census.
5,437
▲ +27.6%
Higher than 57% of postcode areas.
4.0k
4.5k
5.0k
5.5k
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
4,262
4,898
5,437
2011: 4,262
2016: 4,898
2021: 5,437
The number of people who usually live in the area, counted on Census night.
36 yrs
▼ -5.3%
Younger than 86% of postcode areas.
35
36
37
38
39
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
38 yrs
37 yrs
36 yrs
2011: 38 yrs
2016: 37 yrs
2021: 36 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 21.4% of the population, a figure well above the 18.2% seen across Australia. Meanwhile, seniors aged 65 and over account for 15.9% of residents, which is a little below the national figure.
15.9%
▲ +11.4%
Lower than 71% of postcode areas.
14.0%
14.5%
15.0%
15.5%
16.0%
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
14.3%
15.6%
15.9%
2011: 14.3%
2016: 15.6%
2021: 15.9%
Share of the population aged 65 years and over.
21.4%
▼ -2.4%
Higher than 86% of postcode areas.
20.5%
21.0%
21.5%
22.0%
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
21.9%
20.7%
21.4%
2011: 21.9%
2016: 20.7%
2021: 21.4%
Share of the population aged under 15 years.
3981, VIC splits fairly evenly between Young adults (25–44) (27%) and Older adults (45–64) (24%), with Children (0–14) at 21%.
Identity & relationships
First Nations identity and marital status.
De facto relationships are much more common here than in most areas, at 15.6% compared to the 11.5% national average. About 1.4% of the population identify as Aboriginal or Torres Strait Islander, a figure that rose slightly since 2011.
1.4%
▲ +187.4%
Lower than 64% of postcode areas.
0.5%
1.0%
1.5%
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
0.5%
0.9%
1.4%
2011: 0.5%
2016: 0.9%
2021: 1.4%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
15.6%
▲ +37.8%
Higher than 80% of postcode areas.
10.0%
12.0%
14.0%
16.0%
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
11.3%
12.9%
15.6%
2011: 11.3%
2016: 12.9%
2021: 15.6%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
In 3981, VIC, the largest group is Married at 46%, followed by Never married (37%) and Divorced (9%).
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
212
212
85+: 85+: 40 males; 85+: 83 females
80–84: 80–84: 59 males; 80–84: 59 females
75–79: 75–79: 79 males; 75–79: 85 females
70–74: 70–74: 110 males; 70–74: 125 females
65–69: 65–69: 125 males; 65–69: 107 females
60–64: 60–64: 155 males; 60–64: 138 females
55–59: 55–59: 155 males; 55–59: 168 females
50–54: 50–54: 182 males; 50–54: 158 females
45–49: 45–49: 177 males; 45–49: 171 females
40–44: 40–44: 155 males; 40–44: 157 females
35–39: 35–39: 157 males; 35–39: 180 females
30–34: 30–34: 198 males; 30–34: 212 females
25–29: 25–29: 186 males; 25–29: 194 females
20–24: 20–24: 154 males; 20–24: 144 females
15–19: 15–19: 160 males; 15–19: 195 females
10–14: 10–14: 183 males; 10–14: 203 females
5–9: 5–9: 196 males; 5–9: 210 females
0–4: 0–4: 189 males; 0–4: 184 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 3981, VIC [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA3981/3981-vic/topic/demographics-identity
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