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, 10 to 14 year olds was the largest age group among residents in Kenmore Hills, accounting for 9.4% (230 people). This share was higher than Brisbane (C) (6%). Since 2016, the biggest change was in 10 to 14 year olds, which increased by 58 people and 2.2 percentage points.

Section overview

Age structure - Five year age groups

Kenmore Hills - Total persons (Usual residence)

This table summarises five year age groups for Kenmore Hills in 2021 for persons, with comparison against Brisbane (C) and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Kenmore Hills, with comparison markers for Brisbane (C).

Kenmore Hills
Brisbane (C)

0 to 4

2021 count

87

% of total

3.6%

Change from 2016

-0.4pp

5 to 9

2021 count

170

% of total

6.9%

Change from 2016

+1.2pp

10 to 14

2021 count

230

% of total

9.4%

Change from 2016

+2.2pp

15 to 19

2021 count

171

% of total

7.0%

Change from 2016

-1.3pp

20 to 24

2021 count

114

% of total

4.7%

Change from 2016

-1.6pp

25 to 29

2021 count

54

% of total

2.2%

Change from 2016

-0.6pp

30 to 34

2021 count

46

% of total

1.9%

Change from 2016

-1.0pp

35 to 39

2021 count

126

% of total

5.1%

Change from 2016

+1.0pp

40 to 44

2021 count

150

% of total

6.1%

Change from 2016

-0.9pp

45 to 49

2021 count

210

% of total

8.6%

Change from 2016

+0.7pp

50 to 54

2021 count

190

% of total

7.8%

Change from 2016

+0.3pp

55 to 59

2021 count

139

% of total

5.7%

Change from 2016

-1.3pp

60 to 64

2021 count

140

% of total

5.7%

Change from 2016

-0.7pp

65 to 69

2021 count

135

% of total

5.5%

Change from 2016

-1.0pp

70 to 74

2021 count

168

% of total

6.9%

Change from 2016

+1.9pp

75 to 79

2021 count

114

% of total

4.7%

Change from 2016

+1.0pp

80 to 84

2021 count

100

% of total

4.1%

Change from 2016

+1.5pp

85 and over

2021 count

112

% of total

4.6%

Change from 2016

-0.3pp

Data table

Five year age groups for Kenmore Hills. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).

Five year age groups for Kenmore Hills. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
Five year age groups for Kenmore Hills. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
Category20212016Change
Count%Brisbane (C)%Count%Brisbane (C)%Countpp
0 to 4873.6%5.5%954.0%6.0%-8-0.4pp
5 to 91706.9%6.0%1385.7%6.0%+32+1.2pp
10 to 142309.4%6.0%1727.2%5.6%+58+2.2pp
15 to 191717.0%6.0%2008.3%6.2%-29-1.3pp
20 to 241144.7%7.8%1516.3%8.7%-37-1.6pp
25 to 29542.2%8.4%672.8%8.8%-13-0.6pp
30 to 34461.9%8.3%702.9%8.5%-24-1.0pp
35 to 391265.1%8.1%994.1%7.4%+27+1.0pp
40 to 441506.1%7.1%1687.0%7.3%-18-0.9pp
45 to 492108.6%6.8%1897.9%6.9%+21+0.7pp
50 to 541907.8%6.3%1817.5%6.1%+9+0.3pp
55 to 591395.7%5.5%1697.0%5.4%-30-1.3pp
60 to 641405.7%4.8%1536.4%4.6%-13-0.7pp
65 to 691355.5%4.0%1576.5%4.0%-22-1.0pp
70 to 741686.9%3.5%1205.0%2.9%+48+1.9pp
75 to 791144.7%2.5%903.7%2.2%+24+1.0pp
80 to 841004.1%1.7%632.6%1.6%+37+1.5pp
85 and over1124.6%1.8%1174.9%1.8%-5-0.3pp
Total2,448100.0%100.0%2,402100.0%100.0%+460.0pp