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 Millstream (Qld), accounting for 12% (118 people). This share was higher than Tablelands (R) (8.2%). Since 2016, the biggest change was in 5 to 9 year olds, which decreased by 55 people and 3.7 percentage points.

Section overview

Age structure - Five year age groups

Millstream (Qld) - Total persons (Usual residence)

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

Age structure - Five year age groups snapshot

2021 distribution by category for Millstream (Qld), with comparison markers for Tablelands (R).

Millstream (Qld)
Tablelands (R)

0 to 4

2021 count

27

% of total

2.8%

Change from 2016

-1.6pp

5 to 9

2021 count

33

% of total

3.4%

Change from 2016

-3.7pp

10 to 14

2021 count

64

% of total

6.5%

Change from 2016

-1.4pp

15 to 19

2021 count

40

% of total

4.1%

Change from 2016

-1.7pp

20 to 24

2021 count

28

% of total

2.9%

Change from 2016

-1.6pp

25 to 29

2021 count

41

% of total

4.2%

Change from 2016

+0.6pp

30 to 34

2021 count

32

% of total

3.3%

Change from 2016

-0.3pp

35 to 39

2021 count

35

% of total

3.6%

Change from 2016

-1.5pp

40 to 44

2021 count

57

% of total

5.8%

Change from 2016

-0.7pp

45 to 49

2021 count

64

% of total

6.5%

Change from 2016

-0.6pp

50 to 54

2021 count

94

% of total

9.6%

Change from 2016

+4.2pp

55 to 59

2021 count

81

% of total

8.3%

Change from 2016

-1.3pp

60 to 64

2021 count

118

% of total

12.0%

Change from 2016

+3.5pp

65 to 69

2021 count

90

% of total

9.2%

Change from 2016

-0.8pp

70 to 74

2021 count

85

% of total

8.7%

Change from 2016

+2.4pp

75 to 79

2021 count

56

% of total

5.7%

Change from 2016

+2.4pp

80 to 84

2021 count

20

% of total

2.0%

Change from 2016

+1.0pp

85 and over

2021 count

7

% of total

0.7%

Change from 2016

-0.1pp

Data table

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

Five year age groups for Millstream (Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Tablelands (R).
Five year age groups for Millstream (Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Tablelands (R).
Category20212016Change
Count%Tablelands (R)%Count%Tablelands (R)%Countpp
0 to 4272.8%4.1%554.4%5.3%-28-1.6pp
5 to 9333.4%5.8%887.1%6.4%-55-3.7pp
10 to 14646.5%7.1%987.9%6.4%-34-1.4pp
15 to 19404.1%5.8%725.8%5.7%-32-1.7pp
20 to 24282.9%3.5%564.5%4.1%-28-1.6pp
25 to 29414.2%4.4%453.6%4.0%-4+0.6pp
30 to 34323.3%4.5%453.6%4.4%-13-0.3pp
35 to 39353.6%4.9%635.1%4.4%-28-1.5pp
40 to 44575.8%4.9%816.5%5.7%-24-0.7pp
45 to 49646.5%6.0%897.1%6.6%-25-0.6pp
50 to 54949.6%6.8%675.4%7.2%+27+4.2pp
55 to 59818.3%7.5%1209.6%8.1%-39-1.3pp
60 to 6411812.0%8.2%1068.5%7.9%+12+3.5pp
65 to 69909.2%8.0%12510.0%7.9%-35-0.8pp
70 to 74858.7%7.5%796.3%6.2%+6+2.4pp
75 to 79565.7%5.0%413.3%4.3%+15+2.4pp
80 to 84202.0%3.2%131.0%2.8%+7+1.0pp
85 and over70.7%2.7%100.8%2.5%-3-0.1pp
Total981100.0%100.0%1,246100.0%100.0%-2650.0pp