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, 30 to 34 year olds was the largest age group among residents in Exmouth (S), accounting for 9.1% (282 people). This share was higher than Regional WA (6.6%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 80 people and 1.8 percentage points.
Section overview
Age structure - Five year age groups
Exmouth (S) - Total persons (Usual residence)
This table summarises five year age groups for Exmouth (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 Exmouth (S), with comparison markers for Regional WA.
0 to 4
2021 count
190
% of total
6.2%
Change from 2016
-1.4pp
190
6.2%
-1.4pp
5 to 9
2021 count
222
% of total
7.2%
Change from 2016
+0.3pp
222
7.2%
+0.3pp
10 to 14
2021 count
142
% of total
4.6%
Change from 2016
-2.0pp
142
4.6%
-2.0pp
15 to 19
2021 count
145
% of total
4.7%
Change from 2016
0.0pp
145
4.7%
0.0pp
20 to 24
2021 count
182
% of total
5.9%
Change from 2016
+1.4pp
182
5.9%
+1.4pp
25 to 29
2021 count
257
% of total
8.3%
Change from 2016
+1.8pp
257
8.3%
+1.8pp
30 to 34
2021 count
282
% of total
9.1%
Change from 2016
+0.5pp
282
9.1%
+0.5pp
35 to 39
2021 count
266
% of total
8.6%
Change from 2016
+0.2pp
266
8.6%
+0.2pp
40 to 44
2021 count
236
% of total
7.6%
Change from 2016
-0.9pp
236
7.6%
-0.9pp
45 to 49
2021 count
216
% of total
7.0%
Change from 2016
-0.5pp
216
7.0%
-0.5pp
50 to 54
2021 count
204
% of total
6.6%
Change from 2016
-0.3pp
204
6.6%
-0.3pp
55 to 59
2021 count
193
% of total
6.3%
Change from 2016
-0.1pp
193
6.3%
-0.1pp
60 to 64
2021 count
190
% of total
6.2%
Change from 2016
+0.8pp
190
6.2%
+0.8pp
65 to 69
2021 count
125
% of total
4.1%
Change from 2016
-1.8pp
125
4.1%
-1.8pp
70 to 74
2021 count
121
% of total
3.9%
Change from 2016
+0.8pp
121
3.9%
+0.8pp
75 to 79
2021 count
68
% of total
2.2%
Change from 2016
+0.7pp
68
2.2%
+0.7pp
80 to 84
2021 count
33
% of total
1.1%
Change from 2016
+0.4pp
33
1.1%
+0.4pp
85 and over
2021 count
13
% of total
0.4%
Change from 2016
+0.1pp
13
0.4%
+0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-18
-1.4pp
5 to 9
+35
+0.3pp
10 to 14
-37
-2.0pp
15 to 19
+16
0.0pp
20 to 24
+60
+1.4pp
25 to 29
+80
+1.8pp
30 to 34
+48
+0.5pp
35 to 39
+37
+0.2pp
40 to 44
+5
-0.9pp
45 to 49
+12
-0.5pp
50 to 54
+16
-0.3pp
55 to 59
+18
-0.1pp
60 to 64
+42
+0.8pp
65 to 69
-37
-1.8pp
70 to 74
+37
+0.8pp
75 to 79
+28
+0.7pp
80 to 84
+14
+0.4pp
85 and over
+5
+0.1pp
Data table
Five year age groups for Exmouth (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 | 190 | 6.2% | 6.0% | 208 | 7.6% | 6.6% | -18 | -1.4pp |
| 5 to 9 | 222 | 7.2% | 6.7% | 187 | 6.9% | 7.1% | +35 | +0.3pp |
| 10 to 14 | 142 | 4.6% | 6.7% | 179 | 6.6% | 6.5% | -37 | -2.0pp |
| 15 to 19 | 145 | 4.7% | 5.5% | 129 | 4.7% | 5.7% | +16 | 0.0pp |
| 20 to 24 | 182 | 5.9% | 4.8% | 122 | 4.5% | 5.0% | +60 | +1.4pp |
| 25 to 29 | 257 | 8.3% | 5.9% | 177 | 6.5% | 6.5% | +80 | +1.8pp |
| 30 to 34 | 282 | 9.1% | 6.6% | 234 | 8.6% | 7.1% | +48 | +0.5pp |
| 35 to 39 | 266 | 8.6% | 6.8% | 229 | 8.4% | 6.7% | +37 | +0.2pp |
| 40 to 44 | 236 | 7.6% | 6.4% | 231 | 8.5% | 7.0% | +5 | -0.9pp |
| 45 to 49 | 216 | 7.0% | 6.6% | 204 | 7.5% | 7.2% | +12 | -0.5pp |
| 50 to 54 | 204 | 6.6% | 6.9% | 188 | 6.9% | 7.1% | +16 | -0.3pp |
| 55 to 59 | 193 | 6.3% | 6.8% | 175 | 6.4% | 6.9% | +18 | -0.1pp |
| 60 to 64 | 190 | 6.2% | 6.7% | 148 | 5.4% | 6.0% | +42 | +0.8pp |
| 65 to 69 | 125 | 4.1% | 5.7% | 162 | 5.9% | 5.3% | -37 | -1.8pp |
| 70 to 74 | 121 | 3.9% | 4.9% | 84 | 3.1% | 3.6% | +37 | +0.8pp |
| 75 to 79 | 68 | 2.2% | 3.2% | 40 | 1.5% | 2.6% | +28 | +0.7pp |
| 80 to 84 | 33 | 1.1% | 2.0% | 19 | 0.7% | 1.6% | +14 | +0.4pp |
| 85 and over | 13 | 0.4% | 1.7% | 8 | 0.3% | 1.5% | +5 | +0.1pp |
| Total | 3,085 | 100.0% | 100.0% | 2,728 | 100.0% | 100.0% | +357 | 0.0pp |