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, 65 to 69 year olds was the largest age group among residents in York (S), accounting for 10.5% (364 people). This share was higher than Regional WA (5.7%). Since 2016, the biggest change was in 0 to 4 year olds, which decreased by 83 people and 2.2 percentage points.

Section overview

Age structure - Five year age groups

York (S) - Total persons (Usual residence)

This table summarises five year age groups for York (S) in 2021 for persons, with comparison against Regional WA 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

-83

-2.2pp

5 to 9

-37

-0.8pp

10 to 14

+16

+0.7pp

15 to 19

-16

-0.3pp

20 to 24

-30

-0.7pp

25 to 29

+30

+1.0pp

30 to 34

-52

-1.3pp

35 to 39

-1

+0.1pp

40 to 44

-5

0.0pp

45 to 49

-78

-1.9pp

50 to 54

-51

-1.1pp

55 to 59

-21

-0.3pp

60 to 64

+13

+0.7pp

65 to 69

+4

+0.5pp

70 to 74

+77

+2.6pp

75 to 79

+44

+1.5pp

80 to 84

+52

+1.6pp

85 and over

+26

+0.9pp

Data table

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

Five year age groups for York (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
Five year age groups for York (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
Category20212016Change
Count%Regional WA%Count%Regional WA%Countpp
0 to 41103.2%6.0%1935.4%6.6%-83-2.2pp
5 to 91905.5%6.7%2276.3%7.1%-37-0.8pp
10 to 142106.1%6.7%1945.4%6.5%+16+0.7pp
15 to 191323.8%5.5%1484.1%5.7%-16-0.3pp
20 to 24852.5%4.8%1153.2%5.0%-30-0.7pp
25 to 291293.7%5.9%992.7%6.5%+30+1.0pp
30 to 341113.2%6.6%1634.5%7.1%-52-1.3pp
35 to 391714.9%6.8%1724.8%6.7%-1+0.1pp
40 to 441534.4%6.4%1584.4%7.0%-50.0pp
45 to 491544.5%6.6%2326.4%7.2%-78-1.9pp
50 to 542346.8%6.9%2857.9%7.1%-51-1.1pp
55 to 592858.2%6.8%3068.5%6.9%-21-0.3pp
60 to 643449.9%6.7%3319.2%6.0%+13+0.7pp
65 to 6936410.5%5.7%36010.0%5.3%+4+0.5pp
70 to 743209.3%4.9%2436.7%3.6%+77+2.6pp
75 to 792206.4%3.2%1764.9%2.6%+44+1.5pp
80 to 841524.4%2.0%1002.8%1.6%+52+1.6pp
85 and over1073.1%1.7%812.2%1.5%+26+0.9pp
Total3,459100.0%100.0%3,606100.0%100.0%-1470.0pp