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, 50 to 54 year olds was the largest age group among residents in Carnarvon (S), accounting for 7.8% (410 people). This share was higher than Regional WA (6.9%). Since 2016, the biggest change was in 5 to 9 year olds, which decreased by 110 people and 1.7 percentage points.
Section overview
Age structure - Five year age groups
Carnarvon (S) - Total persons (Usual residence)
This table summarises five year age groups for Carnarvon (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 Carnarvon (S), with comparison markers for Regional WA.
0 to 4
2021 count
356
% of total
6.8%
Change from 2016
+0.6pp
356
6.8%
+0.6pp
5 to 9
2021 count
303
% of total
5.8%
Change from 2016
-1.7pp
303
5.8%
-1.7pp
10 to 14
2021 count
319
% of total
6.1%
Change from 2016
-0.7pp
319
6.1%
-0.7pp
15 to 19
2021 count
247
% of total
4.7%
Change from 2016
0.0pp
247
4.7%
0.0pp
20 to 24
2021 count
307
% of total
5.8%
Change from 2016
+0.4pp
307
5.8%
+0.4pp
25 to 29
2021 count
357
% of total
6.8%
Change from 2016
-0.2pp
357
6.8%
-0.2pp
30 to 34
2021 count
346
% of total
6.6%
Change from 2016
-0.2pp
346
6.6%
-0.2pp
35 to 39
2021 count
328
% of total
6.2%
Change from 2016
-0.3pp
328
6.2%
-0.3pp
40 to 44
2021 count
289
% of total
5.5%
Change from 2016
-0.9pp
289
5.5%
-0.9pp
45 to 49
2021 count
359
% of total
6.8%
Change from 2016
-0.8pp
359
6.8%
-0.8pp
50 to 54
2021 count
410
% of total
7.8%
Change from 2016
+0.2pp
410
7.8%
+0.2pp
55 to 59
2021 count
380
% of total
7.2%
Change from 2016
+0.3pp
380
7.2%
+0.3pp
60 to 64
2021 count
367
% of total
7.0%
Change from 2016
+0.2pp
367
7.0%
+0.2pp
65 to 69
2021 count
328
% of total
6.2%
Change from 2016
+1.2pp
328
6.2%
+1.2pp
70 to 74
2021 count
233
% of total
4.4%
Change from 2016
+0.7pp
233
4.4%
+0.7pp
75 to 79
2021 count
156
% of total
3.0%
Change from 2016
+0.4pp
156
3.0%
+0.4pp
80 to 84
2021 count
91
% of total
1.7%
Change from 2016
+0.5pp
91
1.7%
+0.5pp
85 and over
2021 count
68
% of total
1.3%
Change from 2016
+0.2pp
68
1.3%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+15
+0.6pp
5 to 9
-110
-1.7pp
10 to 14
-56
-0.7pp
15 to 19
-14
0.0pp
20 to 24
+7
+0.4pp
25 to 29
-29
-0.2pp
30 to 34
-29
-0.2pp
35 to 39
-32
-0.3pp
40 to 44
-63
-0.9pp
45 to 49
-62
-0.8pp
50 to 54
-9
+0.2pp
55 to 59
-4
+0.3pp
60 to 64
-7
+0.2pp
65 to 69
+51
+1.2pp
70 to 74
+30
+0.7pp
75 to 79
+10
+0.4pp
80 to 84
+24
+0.5pp
85 and over
+8
+0.2pp
Data table
Five year age groups for Carnarvon (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 | 356 | 6.8% | 6.0% | 341 | 6.2% | 6.6% | +15 | +0.6pp |
| 5 to 9 | 303 | 5.8% | 6.7% | 413 | 7.5% | 7.1% | -110 | -1.7pp |
| 10 to 14 | 319 | 6.1% | 6.7% | 375 | 6.8% | 6.5% | -56 | -0.7pp |
| 15 to 19 | 247 | 4.7% | 5.5% | 261 | 4.7% | 5.7% | -14 | 0.0pp |
| 20 to 24 | 307 | 5.8% | 4.8% | 300 | 5.4% | 5.0% | +7 | +0.4pp |
| 25 to 29 | 357 | 6.8% | 5.9% | 386 | 7.0% | 6.5% | -29 | -0.2pp |
| 30 to 34 | 346 | 6.6% | 6.6% | 375 | 6.8% | 7.1% | -29 | -0.2pp |
| 35 to 39 | 328 | 6.2% | 6.8% | 360 | 6.5% | 6.7% | -32 | -0.3pp |
| 40 to 44 | 289 | 5.5% | 6.4% | 352 | 6.4% | 7.0% | -63 | -0.9pp |
| 45 to 49 | 359 | 6.8% | 6.6% | 421 | 7.6% | 7.2% | -62 | -0.8pp |
| 50 to 54 | 410 | 7.8% | 6.9% | 419 | 7.6% | 7.1% | -9 | +0.2pp |
| 55 to 59 | 380 | 7.2% | 6.8% | 384 | 6.9% | 6.9% | -4 | +0.3pp |
| 60 to 64 | 367 | 7.0% | 6.7% | 374 | 6.8% | 6.0% | -7 | +0.2pp |
| 65 to 69 | 328 | 6.2% | 5.7% | 277 | 5.0% | 5.3% | +51 | +1.2pp |
| 70 to 74 | 233 | 4.4% | 4.9% | 203 | 3.7% | 3.6% | +30 | +0.7pp |
| 75 to 79 | 156 | 3.0% | 3.2% | 146 | 2.6% | 2.6% | +10 | +0.4pp |
| 80 to 84 | 91 | 1.7% | 2.0% | 67 | 1.2% | 1.6% | +24 | +0.5pp |
| 85 and over | 68 | 1.3% | 1.7% | 60 | 1.1% | 1.5% | +8 | +0.2pp |
| Total | 5,251 | 100.0% | 100.0% | 5,528 | 100.0% | 100.0% | -277 | 0.0pp |