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, 60 to 64 year olds was the largest age group among residents in Clare and Gilbert Valleys (DC), accounting for 8.1% (741 people). This share was higher than Regional SA (7.7%). Since 2016, the biggest change was in 75 to 79 year olds, which increased by 123 people and 1.2 percentage points.

Section overview

Age structure - Five year age groups

Clare and Gilbert Valleys (DC) - Total persons (Usual residence)

This table summarises five year age groups for Clare and Gilbert Valleys (DC) in 2021 for persons, with comparison against Regional SA and change since 2016.

Age structure - Five year age groups change

Absolute change in category counts between 2016 and 2021.

2016
2021

0 to 4

-24

-0.3pp

5 to 9

-59

-0.8pp

10 to 14

-17

-0.3pp

15 to 19

+13

+0.1pp

20 to 24

+43

+0.4pp

25 to 29

-85

-1.0pp

30 to 34

+46

+0.4pp

35 to 39

+79

+0.8pp

40 to 44

-32

-0.4pp

45 to 49

-80

-1.0pp

50 to 54

-14

-0.3pp

55 to 59

-16

-0.3pp

60 to 64

-32

-0.5pp

65 to 69

+90

+0.9pp

70 to 74

+69

+0.7pp

75 to 79

+123

+1.2pp

80 to 84

+69

+0.7pp

85 and over

-19

-0.3pp

Data table

Five year age groups for Clare and Gilbert Valleys (DC). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional SA.

Five year age groups for Clare and Gilbert Valleys (DC). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional SA.
Five year age groups for Clare and Gilbert Valleys (DC). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional SA.
Category20212016Change
Count%Regional SA%Count%Regional SA%Countpp
0 to 44484.9%4.9%4725.2%5.5%-24-0.3pp
5 to 95165.6%5.7%5756.4%6.1%-59-0.8pp
10 to 145626.1%6.1%5796.4%6.0%-17-0.3pp
15 to 194645.1%5.3%4515.0%5.6%+13+0.1pp
20 to 243804.1%4.6%3373.7%4.8%+43+0.4pp
25 to 293924.3%5.1%4775.3%5.1%-85-1.0pp
30 to 344945.4%5.4%4485.0%5.3%+46+0.4pp
35 to 395025.5%5.4%4234.7%5.2%+79+0.8pp
40 to 444504.9%5.2%4825.3%5.9%-32-0.4pp
45 to 495345.8%5.8%6146.8%6.7%-80-1.0pp
50 to 546517.1%6.7%6657.4%7.1%-14-0.3pp
55 to 597057.7%7.2%7218.0%7.5%-16-0.3pp
60 to 647418.1%7.7%7738.6%7.3%-32-0.5pp
65 to 697408.1%7.4%6507.2%7.1%+90+0.9pp
70 to 746116.7%6.8%5426.0%5.5%+69+0.7pp
75 to 794544.9%4.8%3313.7%3.9%+123+1.2pp
80 to 842833.1%3.1%2142.4%2.6%+69+0.7pp
85 and over2612.8%2.8%2803.1%2.7%-19-0.3pp
Total9,187100.0%100.0%9,023100.0%100.0%+1640.0pp