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 Deepwater (Qld), accounting for 18.1% (52 people). This share was higher than Gladstone (R) (7.1%). Since 2016, the biggest change was in 55 to 59 year olds, which increased by 52 people and 18.1 percentage points.

Section overview

Age structure - Five year age groups

Deepwater (Qld) - Total persons (Usual residence)

This table summarises five year age groups for Deepwater (Qld) in 2021 for persons, with comparison against Gladstone (R) and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Deepwater (Qld), with comparison markers for Gladstone (R).

Deepwater (Qld)
Gladstone (R)

0 to 4

2021 count

0

% of total

0.0%

Change from 2016

-16.2pp

5 to 9

2021 count

3

% of total

1.0%

Change from 2016

+1.0pp

10 to 14

2021 count

16

% of total

5.6%

Change from 2016

-2.5pp

15 to 19

2021 count

11

% of total

3.8%

Change from 2016

+3.8pp

20 to 24

2021 count

3

% of total

1.0%

Change from 2016

+1.0pp

25 to 29

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

30 to 34

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

35 to 39

2021 count

3

% of total

1.0%

Change from 2016

+1.0pp

40 to 44

2021 count

15

% of total

5.2%

Change from 2016

-2.9pp

45 to 49

2021 count

30

% of total

10.5%

Change from 2016

+10.5pp

50 to 54

2021 count

33

% of total

11.5%

Change from 2016

+11.5pp

55 to 59

2021 count

52

% of total

18.1%

Change from 2016

+18.1pp

60 to 64

2021 count

31

% of total

10.8%

Change from 2016

+10.8pp

65 to 69

2021 count

33

% of total

11.5%

Change from 2016

+11.5pp

70 to 74

2021 count

27

% of total

9.4%

Change from 2016

+9.4pp

75 to 79

2021 count

16

% of total

5.6%

Change from 2016

+5.6pp

80 to 84

2021 count

3

% of total

1.0%

Change from 2016

+1.0pp

85 and over

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

Data table

Five year age groups for Deepwater (Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Gladstone (R).

Five year age groups for Deepwater (Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Gladstone (R).
Five year age groups for Deepwater (Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Gladstone (R).
Category20212016Change
Count%Gladstone (R)%Count%Gladstone (R)%Countpp
0 to 400.0%6.4%616.2%7.5%-6-16.2pp
5 to 931.0%7.4%00.0%7.9%+3+1.0pp
10 to 14165.6%7.7%38.1%7.3%+13-2.5pp
15 to 19113.8%6.3%00.0%6.2%+11+3.8pp
20 to 2431.0%5.0%00.0%5.9%+3+1.0pp
25 to 2900.0%5.9%00.0%6.7%00.0pp
30 to 3400.0%6.4%00.0%7.1%00.0pp
35 to 3931.0%6.7%00.0%6.8%+3+1.0pp
40 to 44155.2%6.4%38.1%7.6%+12-2.9pp
45 to 493010.5%7.1%00.0%7.6%+30+10.5pp
50 to 543311.5%7.2%00.0%7.3%+33+11.5pp
55 to 595218.1%7.1%00.0%6.7%+52+18.1pp
60 to 643110.8%6.5%00.0%5.1%+31+10.8pp
65 to 693311.5%5.0%00.0%4.0%+33+11.5pp
70 to 74279.4%4.0%00.0%2.7%+27+9.4pp
75 to 79165.6%2.4%00.0%1.7%+16+5.6pp
80 to 8431.0%1.4%00.0%1.0%+3+1.0pp
85 and over00.0%1.1%00.0%0.8%00.0pp
Total287100.0%100.0%37100.0%100.0%+2500.0pp