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, 55 to 59 year olds was the largest age group among residents in Diamantina (S), accounting for 10.9% (29 people). This share was higher than Regional Qld (6.6%). Since 2016, the biggest change was in 15 to 19 year olds, which decreased by 27 people and 9 percentage points.

Section overview

Age structure - Five year age groups

Diamantina (S) - Total persons (Usual residence)

This table summarises five year age groups for Diamantina (S) in 2021 for persons, with comparison against Regional Qld and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Diamantina (S), with comparison markers for Regional Qld.

Diamantina (S)
Regional Qld

0 to 4

2021 count

3

% of total

1.1%

Change from 2016

-6.8pp

5 to 9

2021 count

9

% of total

3.4%

Change from 2016

-2.4pp

10 to 14

2021 count

8

% of total

3.0%

Change from 2016

-0.4pp

15 to 19

2021 count

9

% of total

3.4%

Change from 2016

-9.0pp

20 to 24

2021 count

18

% of total

6.8%

Change from 2016

-4.5pp

25 to 29

2021 count

27

% of total

10.2%

Change from 2016

+0.9pp

30 to 34

2021 count

15

% of total

5.6%

Change from 2016

+0.8pp

35 to 39

2021 count

20

% of total

7.5%

Change from 2016

-0.4pp

40 to 44

2021 count

16

% of total

6.0%

Change from 2016

+2.2pp

45 to 49

2021 count

18

% of total

6.8%

Change from 2016

+1.6pp

50 to 54

2021 count

26

% of total

9.8%

Change from 2016

+1.6pp

55 to 59

2021 count

29

% of total

10.9%

Change from 2016

+4.7pp

60 to 64

2021 count

10

% of total

3.8%

Change from 2016

-2.7pp

65 to 69

2021 count

17

% of total

6.4%

Change from 2016

+3.0pp

70 to 74

2021 count

10

% of total

3.8%

Change from 2016

+3.8pp

75 to 79

2021 count

4

% of total

1.5%

Change from 2016

+1.5pp

80 to 84

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

85 and over

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

Data table

Five year age groups for Diamantina (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Qld.

Five year age groups for Diamantina (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Qld.
Five year age groups for Diamantina (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Qld.
Category20212016Change
Count%Regional Qld%Count%Regional Qld%Countpp
0 to 431.1%5.4%237.9%6.1%-20-6.8pp
5 to 993.4%6.2%175.8%6.7%-8-2.4pp
10 to 1483.0%6.7%103.4%6.5%-2-0.4pp
15 to 1993.4%6.0%3612.4%6.2%-27-9.0pp
20 to 24186.8%5.7%3311.3%6.0%-15-4.5pp
25 to 292710.2%6.2%279.3%6.1%0+0.9pp
30 to 34155.6%6.3%144.8%6.3%+1+0.8pp
35 to 39207.5%6.4%237.9%6.1%-3-0.4pp
40 to 44166.0%6.1%113.8%6.7%+5+2.2pp
45 to 49186.8%6.5%155.2%6.9%+3+1.6pp
50 to 54269.8%6.6%248.2%6.8%+2+1.6pp
55 to 592910.9%6.6%186.2%6.6%+11+4.7pp
60 to 64103.8%6.4%196.5%6.0%-9-2.7pp
65 to 69176.4%5.7%103.4%5.7%+7+3.0pp
70 to 74103.8%5.2%00.0%4.3%+10+3.8pp
75 to 7941.5%3.7%00.0%3.0%+4+1.5pp
80 to 8400.0%2.3%00.0%2.0%00.0pp
85 and over00.0%2.1%00.0%1.9%00.0pp
Total266100.0%100.0%291100.0%100.0%-250.0pp