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.
Related topics
Key insight
In 2021, 5 to 9 year olds was the largest age group among residents in Three Springs (S), accounting for 9.4% (54 people). This share was higher than Regional WA (6.7%). Since 2016, the biggest change was in 75 to 79 year olds, which increased by 32 people and 5.6 percentage points.
Section overview
Age structure - Five year age groups
Three Springs (S) - Total persons (Usual residence)
This table summarises five year age groups for Three Springs (S) in 2021 for persons, with comparison against Regional WA and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Three Springs (S), with comparison markers for Regional WA.
0 to 4
2021 count
39
% of total
6.8%
Change from 2016
-3.5pp
39
6.8%
-3.5pp
5 to 9
2021 count
54
% of total
9.4%
Change from 2016
+0.6pp
54
9.4%
+0.6pp
10 to 14
2021 count
31
% of total
5.4%
Change from 2016
-0.3pp
31
5.4%
-0.3pp
15 to 19
2021 count
12
% of total
2.1%
Change from 2016
-0.4pp
12
2.1%
-0.4pp
20 to 24
2021 count
17
% of total
3.0%
Change from 2016
+0.8pp
17
3.0%
+0.8pp
25 to 29
2021 count
33
% of total
5.7%
Change from 2016
+0.6pp
33
5.7%
+0.6pp
30 to 34
2021 count
30
% of total
5.2%
Change from 2016
-4.1pp
30
5.2%
-4.1pp
35 to 39
2021 count
52
% of total
9.0%
Change from 2016
+4.3pp
52
9.0%
+4.3pp
40 to 44
2021 count
33
% of total
5.7%
Change from 2016
+0.5pp
33
5.7%
+0.5pp
45 to 49
2021 count
32
% of total
5.6%
Change from 2016
0.0pp
32
5.6%
0.0pp
50 to 54
2021 count
37
% of total
6.4%
Change from 2016
+1.0pp
37
6.4%
+1.0pp
55 to 59
2021 count
41
% of total
7.1%
Change from 2016
-0.1pp
41
7.1%
-0.1pp
60 to 64
2021 count
41
% of total
7.1%
Change from 2016
+0.2pp
41
7.1%
+0.2pp
65 to 69
2021 count
32
% of total
5.6%
Change from 2016
-3.0pp
32
5.6%
-3.0pp
70 to 74
2021 count
32
% of total
5.6%
Change from 2016
+0.2pp
32
5.6%
+0.2pp
75 to 79
2021 count
42
% of total
7.3%
Change from 2016
+5.6pp
42
7.3%
+5.6pp
80 to 84
2021 count
8
% of total
1.4%
Change from 2016
+0.1pp
8
1.4%
+0.1pp
85 and over
2021 count
7
% of total
1.2%
Change from 2016
-1.0pp
7
1.2%
-1.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-22
-3.5pp
5 to 9
+2
+0.6pp
10 to 14
-3
-0.3pp
15 to 19
-3
-0.4pp
20 to 24
+4
+0.8pp
25 to 29
+3
+0.6pp
30 to 34
-25
-4.1pp
35 to 39
+24
+4.3pp
40 to 44
+2
+0.5pp
45 to 49
-1
0.0pp
50 to 54
+5
+1.0pp
55 to 59
-2
-0.1pp
60 to 64
0
+0.2pp
65 to 69
-19
-3.0pp
70 to 74
0
+0.2pp
75 to 79
+32
+5.6pp
80 to 84
0
+0.1pp
85 and over
-6
-1.0pp
Data table
Five year age groups for Three Springs (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional WA% | Count | % | Regional WA% | Count | pp | |
| 0 to 4 | 39 | 6.8% | 6.0% | 61 | 10.3% | 6.6% | -22 | -3.5pp |
| 5 to 9 | 54 | 9.4% | 6.7% | 52 | 8.8% | 7.1% | +2 | +0.6pp |
| 10 to 14 | 31 | 5.4% | 6.7% | 34 | 5.7% | 6.5% | -3 | -0.3pp |
| 15 to 19 | 12 | 2.1% | 5.5% | 15 | 2.5% | 5.7% | -3 | -0.4pp |
| 20 to 24 | 17 | 3.0% | 4.8% | 13 | 2.2% | 5.0% | +4 | +0.8pp |
| 25 to 29 | 33 | 5.7% | 5.9% | 30 | 5.1% | 6.5% | +3 | +0.6pp |
| 30 to 34 | 30 | 5.2% | 6.6% | 55 | 9.3% | 7.1% | -25 | -4.1pp |
| 35 to 39 | 52 | 9.0% | 6.8% | 28 | 4.7% | 6.7% | +24 | +4.3pp |
| 40 to 44 | 33 | 5.7% | 6.4% | 31 | 5.2% | 7.0% | +2 | +0.5pp |
| 45 to 49 | 32 | 5.6% | 6.6% | 33 | 5.6% | 7.2% | -1 | 0.0pp |
| 50 to 54 | 37 | 6.4% | 6.9% | 32 | 5.4% | 7.1% | +5 | +1.0pp |
| 55 to 59 | 41 | 7.1% | 6.8% | 43 | 7.2% | 6.9% | -2 | -0.1pp |
| 60 to 64 | 41 | 7.1% | 6.7% | 41 | 6.9% | 6.0% | 0 | +0.2pp |
| 65 to 69 | 32 | 5.6% | 5.7% | 51 | 8.6% | 5.3% | -19 | -3.0pp |
| 70 to 74 | 32 | 5.6% | 4.9% | 32 | 5.4% | 3.6% | 0 | +0.2pp |
| 75 to 79 | 42 | 7.3% | 3.2% | 10 | 1.7% | 2.6% | +32 | +5.6pp |
| 80 to 84 | 8 | 1.4% | 2.0% | 8 | 1.3% | 1.6% | 0 | +0.1pp |
| 85 and over | 7 | 1.2% | 1.7% | 13 | 2.2% | 1.5% | -6 | -1.0pp |
| Total | 575 | 100.0% | 100.0% | 594 | 100.0% | 100.0% | -19 | 0.0pp |