Population

Five year age groups

About this topic

Five year age groups show the population in standard five-year cohorts from early childhood through older age. Because each band covers the same span of years, the topic gives a clear and comparable view of an area's age structure.

This topic is useful for identifying growth or decline in specific cohorts and for comparing age patterns across places and over time. For service planning, it is often read together with service age groups, household types, and dwelling types.

Interpretation notes

  • Age is reported as at Census night, so the counts are a snapshot of the resident age structure at that point in time.
  • Because each band covers the same five-year span, this topic is best for exact cohort comparison rather than service-planning life stages.

Key insight

In 2021, 20 to 24 year olds was the largest age group among residents in Carlton (Vic.), accounting for 24.3% (3,896 people). This share was higher than Melbourne (C) (16.8%). Since 2016, the biggest change was in 20 to 24 year olds, which increased by 2,179 people and 14.4 percentage points.

Section overview

Age structure - Five year age groups

Carlton (Vic.) - Total persons (Usual residence)

This table summarises five year age groups for Carlton (Vic.) in 2021 for persons, with comparison against Melbourne (C) and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Carlton (Vic.), with comparison markers for Melbourne (C).

Carlton (Vic.)
Melbourne (C)

0 to 4

2021 count

306

% of total

1.9%

Change from 2016

-4.2pp

5 to 9

2021 count

279

% of total

1.7%

Change from 2016

-3.5pp

10 to 14

2021 count

268

% of total

1.7%

Change from 2016

-2.0pp

15 to 19

2021 count

1,024

% of total

6.4%

Change from 2016

+2.1pp

20 to 24

2021 count

3,896

% of total

24.3%

Change from 2016

+14.4pp

25 to 29

2021 count

3,439

% of total

21.4%

Change from 2016

+10.2pp

30 to 34

2021 count

1,980

% of total

12.3%

Change from 2016

+1.5pp

35 to 39

2021 count

1,069

% of total

6.7%

Change from 2016

-1.2pp

40 to 44

2021 count

664

% of total

4.1%

Change from 2016

-2.6pp

45 to 49

2021 count

489

% of total

3.0%

Change from 2016

-2.7pp

50 to 54

2021 count

473

% of total

2.9%

Change from 2016

-2.6pp

55 to 59

2021 count

436

% of total

2.7%

Change from 2016

-2.5pp

60 to 64

2021 count

371

% of total

2.3%

Change from 2016

-1.9pp

65 to 69

2021 count

356

% of total

2.2%

Change from 2016

-1.6pp

70 to 74

2021 count

338

% of total

2.1%

Change from 2016

-0.8pp

75 to 79

2021 count

247

% of total

1.5%

Change from 2016

-1.1pp

80 to 84

2021 count

205

% of total

1.3%

Change from 2016

-0.5pp

85 and over

2021 count

217

% of total

1.4%

Change from 2016

-1.0pp

Data table

Five year age groups for Carlton (Vic.). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Melbourne (C).

Five year age groups for Carlton (Vic.). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Melbourne (C).
Five year age groups for Carlton (Vic.). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Melbourne (C).
Category20212016Change
Count%Melbourne (C)%Count%Melbourne (C)%Countpp
0 to 43061.9%2.9%1,0606.1%3.2%-754-4.2pp
5 to 92791.7%2.1%9055.2%1.8%-626-3.5pp
10 to 142681.7%1.7%6503.7%1.4%-382-2.0pp
15 to 191,0246.4%4.2%7504.3%7.8%+274+2.1pp
20 to 243,89624.3%16.8%1,7179.9%21.9%+2,179+14.4pp
25 to 293,43921.4%19.8%1,94411.2%19.3%+1,495+10.2pp
30 to 341,98012.3%15.6%1,88310.8%13.4%+97+1.5pp
35 to 391,0696.7%9.7%1,3817.9%7.2%-312-1.2pp
40 to 446644.1%5.8%1,1656.7%4.6%-501-2.6pp
45 to 494893.0%4.2%9945.7%3.8%-505-2.7pp
50 to 544732.9%3.6%9565.5%3.4%-483-2.6pp
55 to 594362.7%3.3%9125.2%3.1%-476-2.5pp
60 to 643712.3%2.9%7224.2%2.7%-351-1.9pp
65 to 693562.2%2.4%6653.8%2.3%-309-1.6pp
70 to 743382.1%2.0%5062.9%1.5%-168-0.8pp
75 to 792471.5%1.3%4532.6%1.0%-206-1.1pp
80 to 842051.3%0.8%3191.8%0.7%-114-0.5pp
85 and over2171.4%0.8%4092.4%0.9%-192-1.0pp
Total16,055100.0%100.0%17,388100.0%100.0%-1,3330.0pp