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 Waroona, accounting for 7.7% (221 people). This share was higher than Waroona (S) (7.3%). Since 2016, the biggest change was in 65 to 69 year olds, which increased by 218 people and 6.1 percentage points.
Section overview
Age structure - Five year age groups
Waroona - Total persons (Usual residence)
This table summarises five year age groups for Waroona in 2021 for persons, with comparison against Waroona (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Waroona, with comparison markers for Waroona (S).
0 to 4
2021 count
143
% of total
5.0%
Change from 2016
+0.8pp
143
5.0%
+0.8pp
5 to 9
2021 count
163
% of total
5.7%
Change from 2016
-3.8pp
163
5.7%
-3.8pp
10 to 14
2021 count
189
% of total
6.6%
Change from 2016
-1.8pp
189
6.6%
-1.8pp
15 to 19
2021 count
149
% of total
5.2%
Change from 2016
-0.1pp
149
5.2%
-0.1pp
20 to 24
2021 count
118
% of total
4.1%
Change from 2016
-4.3pp
118
4.1%
-4.3pp
25 to 29
2021 count
126
% of total
4.4%
Change from 2016
+2.8pp
126
4.4%
+2.8pp
30 to 34
2021 count
126
% of total
4.4%
Change from 2016
-1.9pp
126
4.4%
-1.9pp
35 to 39
2021 count
143
% of total
5.0%
Change from 2016
-5.5pp
143
5.0%
-5.5pp
40 to 44
2021 count
149
% of total
5.2%
Change from 2016
-2.7pp
149
5.2%
-2.7pp
45 to 49
2021 count
170
% of total
5.9%
Change from 2016
-0.9pp
170
5.9%
-0.9pp
50 to 54
2021 count
214
% of total
7.5%
Change from 2016
+2.2pp
214
7.5%
+2.2pp
55 to 59
2021 count
210
% of total
7.3%
Change from 2016
+0.5pp
210
7.3%
+0.5pp
60 to 64
2021 count
219
% of total
7.6%
Change from 2016
+2.3pp
219
7.6%
+2.3pp
65 to 69
2021 count
221
% of total
7.7%
Change from 2016
+6.1pp
221
7.7%
+6.1pp
70 to 74
2021 count
202
% of total
7.0%
Change from 2016
+5.4pp
202
7.0%
+5.4pp
75 to 79
2021 count
123
% of total
4.3%
Change from 2016
+4.3pp
123
4.3%
+4.3pp
80 to 84
2021 count
105
% of total
3.7%
Change from 2016
+3.7pp
105
3.7%
+3.7pp
85 and over
2021 count
88
% of total
3.1%
Change from 2016
+3.1pp
88
3.1%
+3.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+135
+0.8pp
5 to 9
+145
-3.8pp
10 to 14
+173
-1.8pp
15 to 19
+139
-0.1pp
20 to 24
+102
-4.3pp
25 to 29
+123
+2.8pp
30 to 34
+114
-1.9pp
35 to 39
+123
-5.5pp
40 to 44
+134
-2.7pp
45 to 49
+157
-0.9pp
50 to 54
+204
+2.2pp
55 to 59
+197
+0.5pp
60 to 64
+209
+2.3pp
65 to 69
+218
+6.1pp
70 to 74
+199
+5.4pp
75 to 79
+123
+4.3pp
80 to 84
+105
+3.7pp
85 and over
+88
+3.1pp
Data table
Five year age groups for Waroona. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Waroona (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Waroona (S)% | Count | % | Waroona (S)% | Count | pp | |
| 0 to 4 | 143 | 5.0% | 4.6% | 8 | 4.2% | 5.3% | +135 | +0.8pp |
| 5 to 9 | 163 | 5.7% | 5.3% | 18 | 9.5% | 6.3% | +145 | -3.8pp |
| 10 to 14 | 189 | 6.6% | 6.3% | 16 | 8.4% | 7.1% | +173 | -1.8pp |
| 15 to 19 | 149 | 5.2% | 5.8% | 10 | 5.3% | 5.8% | +139 | -0.1pp |
| 20 to 24 | 118 | 4.1% | 4.0% | 16 | 8.4% | 4.3% | +102 | -4.3pp |
| 25 to 29 | 126 | 4.4% | 4.0% | 3 | 1.6% | 4.3% | +123 | +2.8pp |
| 30 to 34 | 126 | 4.4% | 4.6% | 12 | 6.3% | 5.3% | +114 | -1.9pp |
| 35 to 39 | 143 | 5.0% | 5.4% | 20 | 10.5% | 5.3% | +123 | -5.5pp |
| 40 to 44 | 149 | 5.2% | 6.1% | 15 | 7.9% | 5.4% | +134 | -2.7pp |
| 45 to 49 | 170 | 5.9% | 6.0% | 13 | 6.8% | 7.1% | +157 | -0.9pp |
| 50 to 54 | 214 | 7.5% | 7.5% | 10 | 5.3% | 7.7% | +204 | +2.2pp |
| 55 to 59 | 210 | 7.3% | 8.0% | 13 | 6.8% | 7.4% | +197 | +0.5pp |
| 60 to 64 | 219 | 7.6% | 7.5% | 10 | 5.3% | 7.3% | +209 | +2.3pp |
| 65 to 69 | 221 | 7.7% | 7.3% | 3 | 1.6% | 7.2% | +218 | +6.1pp |
| 70 to 74 | 202 | 7.0% | 7.2% | 3 | 1.6% | 4.3% | +199 | +5.4pp |
| 75 to 79 | 123 | 4.3% | 3.9% | 0 | 0.0% | 4.5% | +123 | +4.3pp |
| 80 to 84 | 105 | 3.7% | 3.3% | 0 | 0.0% | 2.5% | +105 | +3.7pp |
| 85 and over | 88 | 3.1% | 2.5% | 0 | 0.0% | 2.3% | +88 | +3.1pp |
| Total | 2,868 | 100.0% | 100.0% | 190 | 100.0% | 100.0% | +2,678 | 0.0pp |