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 Machine Creek, accounting for 13% (17 people). This share was higher than Gladstone (R) (7.7%). Since 2016, the biggest change was in 10 to 14 year olds, which increased by 13 people and 9.7 percentage points.

Section overview

Age structure - Five year age groups

Machine Creek - Total persons (Usual residence)

This table summarises five year age groups for Machine Creek in 2021 for persons, with comparison against Gladstone (R) 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

-6

-5.0pp

5 to 9

+1

0.0pp

10 to 14

+13

+9.7pp

15 to 19

0

0.0pp

20 to 24

+5

+3.8pp

25 to 29

0

0.0pp

30 to 34

+1

+0.6pp

35 to 39

+10

+7.4pp

40 to 44

-12

-10.0pp

45 to 49

+1

+0.3pp

50 to 54

-7

-5.8pp

55 to 59

-8

-6.9pp

60 to 64

+2

+0.7pp

65 to 69

+13

+9.9pp

70 to 74

0

-0.2pp

75 to 79

+4

+3.1pp

80 to 84

-3

-2.5pp

85 and over

0

0.0pp

Data table

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

Five year age groups for Machine Creek. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Gladstone (R).
Five year age groups for Machine Creek. 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%65.0%7.5%-6-5.0pp
5 to 9129.2%7.4%119.2%7.9%+10.0pp
10 to 141713.0%7.7%43.3%7.3%+13+9.7pp
15 to 1900.0%6.3%00.0%6.2%00.0pp
20 to 2453.8%5.0%00.0%5.9%+5+3.8pp
25 to 2900.0%5.9%00.0%6.7%00.0pp
30 to 3443.1%6.4%32.5%7.1%+1+0.6pp
35 to 39139.9%6.7%32.5%6.8%+10+7.4pp
40 to 4400.0%6.4%1210.0%7.6%-12-10.0pp
45 to 4975.3%7.1%65.0%7.6%+1+0.3pp
50 to 5400.0%7.2%75.8%7.3%-7-5.8pp
55 to 5932.3%7.1%119.2%6.7%-8-6.9pp
60 to 641410.7%6.5%1210.0%5.1%+2+0.7pp
65 to 69139.9%5.0%00.0%4.0%+13+9.9pp
70 to 7432.3%4.0%32.5%2.7%0-0.2pp
75 to 7943.1%2.4%00.0%1.7%+4+3.1pp
80 to 8400.0%1.4%32.5%1.0%-3-2.5pp
85 and over00.0%1.1%00.0%0.8%00.0pp
Total131100.0%100.0%120100.0%100.0%+110.0pp