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, 55 to 59 year olds was the largest age group among residents in Waroona (S), accounting for 8% (337 people). This share was higher than Regional WA (6.8%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 124 people and 2.9 percentage points.
Section overview
Age structure - Five year age groups
Waroona (S) - Total persons (Usual residence)
This table summarises five year age groups for Waroona (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 Waroona (S), with comparison markers for Regional WA.
0 to 4
2021 count
194
% of total
4.6%
Change from 2016
-0.7pp
194
4.6%
-0.7pp
5 to 9
2021 count
225
% of total
5.3%
Change from 2016
-1.0pp
225
5.3%
-1.0pp
10 to 14
2021 count
268
% of total
6.3%
Change from 2016
-0.8pp
268
6.3%
-0.8pp
15 to 19
2021 count
246
% of total
5.8%
Change from 2016
0.0pp
246
5.8%
0.0pp
20 to 24
2021 count
168
% of total
4.0%
Change from 2016
-0.3pp
168
4.0%
-0.3pp
25 to 29
2021 count
169
% of total
4.0%
Change from 2016
-0.3pp
169
4.0%
-0.3pp
30 to 34
2021 count
195
% of total
4.6%
Change from 2016
-0.7pp
195
4.6%
-0.7pp
35 to 39
2021 count
227
% of total
5.4%
Change from 2016
+0.1pp
227
5.4%
+0.1pp
40 to 44
2021 count
260
% of total
6.1%
Change from 2016
+0.7pp
260
6.1%
+0.7pp
45 to 49
2021 count
252
% of total
6.0%
Change from 2016
-1.1pp
252
6.0%
-1.1pp
50 to 54
2021 count
319
% of total
7.5%
Change from 2016
-0.2pp
319
7.5%
-0.2pp
55 to 59
2021 count
337
% of total
8.0%
Change from 2016
+0.6pp
337
8.0%
+0.6pp
60 to 64
2021 count
319
% of total
7.5%
Change from 2016
+0.2pp
319
7.5%
+0.2pp
65 to 69
2021 count
311
% of total
7.3%
Change from 2016
+0.1pp
311
7.3%
+0.1pp
70 to 74
2021 count
304
% of total
7.2%
Change from 2016
+2.9pp
304
7.2%
+2.9pp
75 to 79
2021 count
167
% of total
3.9%
Change from 2016
-0.6pp
167
3.9%
-0.6pp
80 to 84
2021 count
138
% of total
3.3%
Change from 2016
+0.8pp
138
3.3%
+0.8pp
85 and over
2021 count
105
% of total
2.5%
Change from 2016
+0.2pp
105
2.5%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-25
-0.7pp
5 to 9
-36
-1.0pp
10 to 14
-26
-0.8pp
15 to 19
+6
0.0pp
20 to 24
-9
-0.3pp
25 to 29
-9
-0.3pp
30 to 34
-24
-0.7pp
35 to 39
+6
+0.1pp
40 to 44
+38
+0.7pp
45 to 49
-43
-1.1pp
50 to 54
0
-0.2pp
55 to 59
+30
+0.6pp
60 to 64
+16
+0.2pp
65 to 69
+11
+0.1pp
70 to 74
+124
+2.9pp
75 to 79
-18
-0.6pp
80 to 84
+36
+0.8pp
85 and over
+11
+0.2pp
Data table
Five year age groups for Waroona (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 | 194 | 4.6% | 6.0% | 219 | 5.3% | 6.6% | -25 | -0.7pp |
| 5 to 9 | 225 | 5.3% | 6.7% | 261 | 6.3% | 7.1% | -36 | -1.0pp |
| 10 to 14 | 268 | 6.3% | 6.7% | 294 | 7.1% | 6.5% | -26 | -0.8pp |
| 15 to 19 | 246 | 5.8% | 5.5% | 240 | 5.8% | 5.7% | +6 | 0.0pp |
| 20 to 24 | 168 | 4.0% | 4.8% | 177 | 4.3% | 5.0% | -9 | -0.3pp |
| 25 to 29 | 169 | 4.0% | 5.9% | 178 | 4.3% | 6.5% | -9 | -0.3pp |
| 30 to 34 | 195 | 4.6% | 6.6% | 219 | 5.3% | 7.1% | -24 | -0.7pp |
| 35 to 39 | 227 | 5.4% | 6.8% | 221 | 5.3% | 6.7% | +6 | +0.1pp |
| 40 to 44 | 260 | 6.1% | 6.4% | 222 | 5.4% | 7.0% | +38 | +0.7pp |
| 45 to 49 | 252 | 6.0% | 6.6% | 295 | 7.1% | 7.2% | -43 | -1.1pp |
| 50 to 54 | 319 | 7.5% | 6.9% | 319 | 7.7% | 7.1% | 0 | -0.2pp |
| 55 to 59 | 337 | 8.0% | 6.8% | 307 | 7.4% | 6.9% | +30 | +0.6pp |
| 60 to 64 | 319 | 7.5% | 6.7% | 303 | 7.3% | 6.0% | +16 | +0.2pp |
| 65 to 69 | 311 | 7.3% | 5.7% | 300 | 7.2% | 5.3% | +11 | +0.1pp |
| 70 to 74 | 304 | 7.2% | 4.9% | 180 | 4.3% | 3.6% | +124 | +2.9pp |
| 75 to 79 | 167 | 3.9% | 3.2% | 185 | 4.5% | 2.6% | -18 | -0.6pp |
| 80 to 84 | 138 | 3.3% | 2.0% | 102 | 2.5% | 1.6% | +36 | +0.8pp |
| 85 and over | 105 | 2.5% | 1.7% | 94 | 2.3% | 1.5% | +11 | +0.2pp |
| Total | 4,234 | 100.0% | 100.0% | 4,148 | 100.0% | 100.0% | +86 | 0.0pp |