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, 35 to 39 year olds was the largest age group among residents in Wiluna (S), accounting for 11.8% (63 people). This share was higher than Regional WA (6.8%). Since 2016, the biggest change was in 30 to 34 year olds, which decreased by 51 people and 3.9 percentage points.
Section overview
Age structure - Five year age groups
Wiluna (S) - Total persons (Usual residence)
This table summarises five year age groups for Wiluna (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 Wiluna (S), with comparison markers for Regional WA.
0 to 4
2021 count
16
% of total
3.0%
Change from 2016
-1.9pp
16
3.0%
-1.9pp
5 to 9
2021 count
42
% of total
7.9%
Change from 2016
+3.7pp
42
7.9%
+3.7pp
10 to 14
2021 count
37
% of total
6.9%
Change from 2016
+4.2pp
37
6.9%
+4.2pp
15 to 19
2021 count
26
% of total
4.9%
Change from 2016
+1.4pp
26
4.9%
+1.4pp
20 to 24
2021 count
48
% of total
9.0%
Change from 2016
+2.9pp
48
9.0%
+2.9pp
25 to 29
2021 count
53
% of total
9.9%
Change from 2016
-2.2pp
53
9.9%
-2.2pp
30 to 34
2021 count
58
% of total
10.8%
Change from 2016
-3.9pp
58
10.8%
-3.9pp
35 to 39
2021 count
63
% of total
11.8%
Change from 2016
+0.1pp
63
11.8%
+0.1pp
40 to 44
2021 count
42
% of total
7.9%
Change from 2016
-0.2pp
42
7.9%
-0.2pp
45 to 49
2021 count
34
% of total
6.4%
Change from 2016
-0.3pp
34
6.4%
-0.3pp
50 to 54
2021 count
44
% of total
8.2%
Change from 2016
+0.5pp
44
8.2%
+0.5pp
55 to 59
2021 count
33
% of total
6.2%
Change from 2016
-0.1pp
33
6.2%
-0.1pp
60 to 64
2021 count
15
% of total
2.8%
Change from 2016
-2.1pp
15
2.8%
-2.1pp
65 to 69
2021 count
16
% of total
3.0%
Change from 2016
-1.9pp
16
3.0%
-1.9pp
70 to 74
2021 count
23
% of total
4.3%
Change from 2016
+3.9pp
23
4.3%
+3.9pp
75 to 79
2021 count
3
% of total
0.6%
Change from 2016
-0.2pp
3
0.6%
-0.2pp
80 to 84
2021 count
4
% of total
0.7%
Change from 2016
+0.7pp
4
0.7%
+0.7pp
85 and over
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-20
-1.9pp
5 to 9
+11
+3.7pp
10 to 14
+17
+4.2pp
15 to 19
0
+1.4pp
20 to 24
+3
+2.9pp
25 to 29
-37
-2.2pp
30 to 34
-51
-3.9pp
35 to 39
-24
+0.1pp
40 to 44
-18
-0.2pp
45 to 49
-16
-0.3pp
50 to 54
-13
+0.5pp
55 to 59
-14
-0.1pp
60 to 64
-21
-2.1pp
65 to 69
-20
-1.9pp
70 to 74
+20
+3.9pp
75 to 79
-3
-0.2pp
80 to 84
+4
+0.7pp
85 and over
0
0.0pp
Data table
Five year age groups for Wiluna (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 | 16 | 3.0% | 6.0% | 36 | 4.9% | 6.6% | -20 | -1.9pp |
| 5 to 9 | 42 | 7.9% | 6.7% | 31 | 4.2% | 7.1% | +11 | +3.7pp |
| 10 to 14 | 37 | 6.9% | 6.7% | 20 | 2.7% | 6.5% | +17 | +4.2pp |
| 15 to 19 | 26 | 4.9% | 5.5% | 26 | 3.5% | 5.7% | 0 | +1.4pp |
| 20 to 24 | 48 | 9.0% | 4.8% | 45 | 6.1% | 5.0% | +3 | +2.9pp |
| 25 to 29 | 53 | 9.9% | 5.9% | 90 | 12.1% | 6.5% | -37 | -2.2pp |
| 30 to 34 | 58 | 10.8% | 6.6% | 109 | 14.7% | 7.1% | -51 | -3.9pp |
| 35 to 39 | 63 | 11.8% | 6.8% | 87 | 11.7% | 6.7% | -24 | +0.1pp |
| 40 to 44 | 42 | 7.9% | 6.4% | 60 | 8.1% | 7.0% | -18 | -0.2pp |
| 45 to 49 | 34 | 6.4% | 6.6% | 50 | 6.7% | 7.2% | -16 | -0.3pp |
| 50 to 54 | 44 | 8.2% | 6.9% | 57 | 7.7% | 7.1% | -13 | +0.5pp |
| 55 to 59 | 33 | 6.2% | 6.8% | 47 | 6.3% | 6.9% | -14 | -0.1pp |
| 60 to 64 | 15 | 2.8% | 6.7% | 36 | 4.9% | 6.0% | -21 | -2.1pp |
| 65 to 69 | 16 | 3.0% | 5.7% | 36 | 4.9% | 5.3% | -20 | -1.9pp |
| 70 to 74 | 23 | 4.3% | 4.9% | 3 | 0.4% | 3.6% | +20 | +3.9pp |
| 75 to 79 | 3 | 0.6% | 3.2% | 6 | 0.8% | 2.6% | -3 | -0.2pp |
| 80 to 84 | 4 | 0.7% | 2.0% | 0 | 0.0% | 1.6% | +4 | +0.7pp |
| 85 and over | 0 | 0.0% | 1.7% | 0 | 0.0% | 1.5% | 0 | 0.0pp |
| Total | 535 | 100.0% | 100.0% | 742 | 100.0% | 100.0% | -207 | 0.0pp |