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, 65 to 69 year olds was the largest age group among residents in Dowerin (S), accounting for 9.7% (69 people). This share was higher than Regional WA (5.7%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 38 people and 5.3 percentage points.
Section overview
Age structure - Five year age groups
Dowerin (S) - Total persons (Usual residence)
This table summarises five year age groups for Dowerin (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 Dowerin (S), with comparison markers for Regional WA.
0 to 4
2021 count
47
% of total
6.6%
Change from 2016
-3.8pp
47
6.6%
-3.8pp
5 to 9
2021 count
62
% of total
8.7%
Change from 2016
+1.6pp
62
8.7%
+1.6pp
10 to 14
2021 count
47
% of total
6.6%
Change from 2016
+1.8pp
47
6.6%
+1.8pp
15 to 19
2021 count
22
% of total
3.1%
Change from 2016
+0.2pp
22
3.1%
+0.2pp
20 to 24
2021 count
38
% of total
5.3%
Change from 2016
+1.8pp
38
5.3%
+1.8pp
25 to 29
2021 count
35
% of total
4.9%
Change from 2016
+1.3pp
35
4.9%
+1.3pp
30 to 34
2021 count
24
% of total
3.4%
Change from 2016
-3.8pp
24
3.4%
-3.8pp
35 to 39
2021 count
43
% of total
6.0%
Change from 2016
-0.5pp
43
6.0%
-0.5pp
40 to 44
2021 count
41
% of total
5.7%
Change from 2016
-0.7pp
41
5.7%
-0.7pp
45 to 49
2021 count
57
% of total
8.0%
Change from 2016
+0.6pp
57
8.0%
+0.6pp
50 to 54
2021 count
39
% of total
5.5%
Change from 2016
-0.2pp
39
5.5%
-0.2pp
55 to 59
2021 count
46
% of total
6.4%
Change from 2016
+1.5pp
46
6.4%
+1.5pp
60 to 64
2021 count
42
% of total
5.9%
Change from 2016
-4.1pp
42
5.9%
-4.1pp
65 to 69
2021 count
69
% of total
9.7%
Change from 2016
+1.6pp
69
9.7%
+1.6pp
70 to 74
2021 count
59
% of total
8.3%
Change from 2016
+5.3pp
59
8.3%
+5.3pp
75 to 79
2021 count
26
% of total
3.6%
Change from 2016
0.0pp
26
3.6%
0.0pp
80 to 84
2021 count
18
% of total
2.5%
Change from 2016
-0.1pp
18
2.5%
-0.1pp
85 and over
2021 count
12
% of total
1.7%
Change from 2016
0.0pp
12
1.7%
0.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-25
-3.8pp
5 to 9
+13
+1.6pp
10 to 14
+14
+1.8pp
15 to 19
+2
+0.2pp
20 to 24
+14
+1.8pp
25 to 29
+10
+1.3pp
30 to 34
-26
-3.8pp
35 to 39
-2
-0.5pp
40 to 44
-3
-0.7pp
45 to 49
+6
+0.6pp
50 to 54
0
-0.2pp
55 to 59
+12
+1.5pp
60 to 64
-27
-4.1pp
65 to 69
+13
+1.6pp
70 to 74
+38
+5.3pp
75 to 79
+1
0.0pp
80 to 84
0
-0.1pp
85 and over
0
0.0pp
Data table
Five year age groups for Dowerin (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 | 47 | 6.6% | 6.0% | 72 | 10.4% | 6.6% | -25 | -3.8pp |
| 5 to 9 | 62 | 8.7% | 6.7% | 49 | 7.1% | 7.1% | +13 | +1.6pp |
| 10 to 14 | 47 | 6.6% | 6.7% | 33 | 4.8% | 6.5% | +14 | +1.8pp |
| 15 to 19 | 22 | 3.1% | 5.5% | 20 | 2.9% | 5.7% | +2 | +0.2pp |
| 20 to 24 | 38 | 5.3% | 4.8% | 24 | 3.5% | 5.0% | +14 | +1.8pp |
| 25 to 29 | 35 | 4.9% | 5.9% | 25 | 3.6% | 6.5% | +10 | +1.3pp |
| 30 to 34 | 24 | 3.4% | 6.6% | 50 | 7.2% | 7.1% | -26 | -3.8pp |
| 35 to 39 | 43 | 6.0% | 6.8% | 45 | 6.5% | 6.7% | -2 | -0.5pp |
| 40 to 44 | 41 | 5.7% | 6.4% | 44 | 6.4% | 7.0% | -3 | -0.7pp |
| 45 to 49 | 57 | 8.0% | 6.6% | 51 | 7.4% | 7.2% | +6 | +0.6pp |
| 50 to 54 | 39 | 5.5% | 6.9% | 39 | 5.7% | 7.1% | 0 | -0.2pp |
| 55 to 59 | 46 | 6.4% | 6.8% | 34 | 4.9% | 6.9% | +12 | +1.5pp |
| 60 to 64 | 42 | 5.9% | 6.7% | 69 | 10.0% | 6.0% | -27 | -4.1pp |
| 65 to 69 | 69 | 9.7% | 5.7% | 56 | 8.1% | 5.3% | +13 | +1.6pp |
| 70 to 74 | 59 | 8.3% | 4.9% | 21 | 3.0% | 3.6% | +38 | +5.3pp |
| 75 to 79 | 26 | 3.6% | 3.2% | 25 | 3.6% | 2.6% | +1 | 0.0pp |
| 80 to 84 | 18 | 2.5% | 2.0% | 18 | 2.6% | 1.6% | 0 | -0.1pp |
| 85 and over | 12 | 1.7% | 1.7% | 12 | 1.7% | 1.5% | 0 | 0.0pp |
| Total | 715 | 100.0% | 100.0% | 690 | 100.0% | 100.0% | +25 | 0.0pp |