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, 60 to 64 year olds was the largest age group among residents in Bruce Rock (S), accounting for 8.5% (83 people). This share was higher than Regional WA (6.7%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 34 people and 3.3 percentage points.
Section overview
Age structure - Five year age groups
Bruce Rock (S) - Total persons (Usual residence)
This table summarises five year age groups for Bruce Rock (S) in 2021 for persons, with comparison against Regional WA and change since 2016.
Chart view
Age structure - Five year age groups snapshot
2021 distribution by category for Bruce Rock (S), with comparison markers for Regional WA.
0 to 4
2021 count
60
% of total
6.1%
Change from 2016
+1.5pp
60
6.1%
+1.5pp
5 to 9
2021 count
63
% of total
6.4%
Change from 2016
-0.7pp
63
6.4%
-0.7pp
10 to 14
2021 count
72
% of total
7.4%
Change from 2016
+0.7pp
72
7.4%
+0.7pp
15 to 19
2021 count
49
% of total
5.0%
Change from 2016
+1.2pp
49
5.0%
+1.2pp
20 to 24
2021 count
51
% of total
5.2%
Change from 2016
+2.6pp
51
5.2%
+2.6pp
25 to 29
2021 count
41
% of total
4.2%
Change from 2016
-0.4pp
41
4.2%
-0.4pp
30 to 34
2021 count
49
% of total
5.0%
Change from 2016
-0.4pp
49
5.0%
-0.4pp
35 to 39
2021 count
49
% of total
5.0%
Change from 2016
+0.2pp
49
5.0%
+0.2pp
40 to 44
2021 count
48
% of total
4.9%
Change from 2016
-1.3pp
48
4.9%
-1.3pp
45 to 49
2021 count
65
% of total
6.6%
Change from 2016
+0.4pp
65
6.6%
+0.4pp
50 to 54
2021 count
56
% of total
5.7%
Change from 2016
0.0pp
56
5.7%
0.0pp
55 to 59
2021 count
67
% of total
6.8%
Change from 2016
-1.2pp
67
6.8%
-1.2pp
60 to 64
2021 count
83
% of total
8.5%
Change from 2016
+0.7pp
83
8.5%
+0.7pp
65 to 69
2021 count
75
% of total
7.7%
Change from 2016
-2.6pp
75
7.7%
-2.6pp
70 to 74
2021 count
77
% of total
7.9%
Change from 2016
+3.3pp
77
7.9%
+3.3pp
75 to 79
2021 count
39
% of total
4.0%
Change from 2016
-0.3pp
39
4.0%
-0.3pp
80 to 84
2021 count
37
% of total
3.8%
Change from 2016
+0.8pp
37
3.8%
+0.8pp
85 and over
2021 count
27
% of total
2.8%
Change from 2016
+0.8pp
27
2.8%
+0.8pp
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+17
+1.5pp
5 to 9
-3
-0.7pp
10 to 14
+10
+0.7pp
15 to 19
+14
+1.2pp
20 to 24
+27
+2.6pp
25 to 29
-2
-0.4pp
30 to 34
-1
-0.4pp
35 to 39
+4
+0.2pp
40 to 44
-10
-1.3pp
45 to 49
+7
+0.4pp
50 to 54
+3
0.0pp
55 to 59
-7
-1.2pp
60 to 64
+10
+0.7pp
65 to 69
-21
-2.6pp
70 to 74
+34
+3.3pp
75 to 79
-1
-0.3pp
80 to 84
+9
+0.8pp
85 and over
+8
+0.8pp
Data table
Five year age groups for Bruce Rock (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 | 60 | 6.1% | 6.0% | 43 | 4.6% | 6.6% | +17 | +1.5pp |
| 5 to 9 | 63 | 6.4% | 6.7% | 66 | 7.1% | 7.1% | -3 | -0.7pp |
| 10 to 14 | 72 | 7.4% | 6.7% | 62 | 6.7% | 6.5% | +10 | +0.7pp |
| 15 to 19 | 49 | 5.0% | 5.5% | 35 | 3.8% | 5.7% | +14 | +1.2pp |
| 20 to 24 | 51 | 5.2% | 4.8% | 24 | 2.6% | 5.0% | +27 | +2.6pp |
| 25 to 29 | 41 | 4.2% | 5.9% | 43 | 4.6% | 6.5% | -2 | -0.4pp |
| 30 to 34 | 49 | 5.0% | 6.6% | 50 | 5.4% | 7.1% | -1 | -0.4pp |
| 35 to 39 | 49 | 5.0% | 6.8% | 45 | 4.8% | 6.7% | +4 | +0.2pp |
| 40 to 44 | 48 | 4.9% | 6.4% | 58 | 6.2% | 7.0% | -10 | -1.3pp |
| 45 to 49 | 65 | 6.6% | 6.6% | 58 | 6.2% | 7.2% | +7 | +0.4pp |
| 50 to 54 | 56 | 5.7% | 6.9% | 53 | 5.7% | 7.1% | +3 | 0.0pp |
| 55 to 59 | 67 | 6.8% | 6.8% | 74 | 8.0% | 6.9% | -7 | -1.2pp |
| 60 to 64 | 83 | 8.5% | 6.7% | 73 | 7.8% | 6.0% | +10 | +0.7pp |
| 65 to 69 | 75 | 7.7% | 5.7% | 96 | 10.3% | 5.3% | -21 | -2.6pp |
| 70 to 74 | 77 | 7.9% | 4.9% | 43 | 4.6% | 3.6% | +34 | +3.3pp |
| 75 to 79 | 39 | 4.0% | 3.2% | 40 | 4.3% | 2.6% | -1 | -0.3pp |
| 80 to 84 | 37 | 3.8% | 2.0% | 28 | 3.0% | 1.6% | +9 | +0.8pp |
| 85 and over | 27 | 2.8% | 1.7% | 19 | 2.0% | 1.5% | +8 | +0.8pp |
| Total | 979 | 100.0% | 100.0% | 930 | 100.0% | 100.0% | +49 | 0.0pp |