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, 0 to 4 year olds was the largest age group among residents in Katanning, accounting for 7% (253 people). This share was higher than Katanning (S) (6.8%). Since 2016, the biggest change was in 50 to 54 year olds, which decreased by 520 people and 1.3 percentage points.
Section overview
Age structure - Five year age groups
Katanning - Total persons (Usual residence)
This table summarises five year age groups for Katanning in 2021 for persons, with comparison against Katanning (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Katanning, with comparison markers for Katanning (S).
0 to 4
2021 count
253
% of total
7.0%
Change from 2016
+0.3pp
253
7.0%
+0.3pp
5 to 9
2021 count
228
% of total
6.3%
Change from 2016
+0.1pp
228
6.3%
+0.1pp
10 to 14
2021 count
225
% of total
6.2%
Change from 2016
+0.7pp
225
6.2%
+0.7pp
15 to 19
2021 count
237
% of total
6.5%
Change from 2016
+0.4pp
237
6.5%
+0.4pp
20 to 24
2021 count
224
% of total
6.2%
Change from 2016
-0.2pp
224
6.2%
-0.2pp
25 to 29
2021 count
242
% of total
6.7%
Change from 2016
-0.3pp
242
6.7%
-0.3pp
30 to 34
2021 count
234
% of total
6.4%
Change from 2016
-0.7pp
234
6.4%
-0.7pp
35 to 39
2021 count
224
% of total
6.2%
Change from 2016
0.0pp
224
6.2%
0.0pp
40 to 44
2021 count
208
% of total
5.7%
Change from 2016
-1.0pp
208
5.7%
-1.0pp
45 to 49
2021 count
212
% of total
5.8%
Change from 2016
-0.7pp
212
5.8%
-0.7pp
50 to 54
2021 count
209
% of total
5.7%
Change from 2016
-1.3pp
209
5.7%
-1.3pp
55 to 59
2021 count
240
% of total
6.6%
Change from 2016
+0.5pp
240
6.6%
+0.5pp
60 to 64
2021 count
219
% of total
6.0%
Change from 2016
-0.1pp
219
6.0%
-0.1pp
65 to 69
2021 count
212
% of total
5.8%
Change from 2016
+0.2pp
212
5.8%
+0.2pp
70 to 74
2021 count
155
% of total
4.3%
Change from 2016
+0.4pp
155
4.3%
+0.4pp
75 to 79
2021 count
132
% of total
3.6%
Change from 2016
+0.9pp
132
3.6%
+0.9pp
80 to 84
2021 count
96
% of total
2.6%
Change from 2016
+0.5pp
96
2.6%
+0.5pp
85 and over
2021 count
94
% of total
2.6%
Change from 2016
+0.4pp
94
2.6%
+0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-444
+0.3pp
5 to 9
-418
+0.1pp
10 to 14
-354
+0.7pp
15 to 19
-399
+0.4pp
20 to 24
-448
-0.2pp
25 to 29
-491
-0.3pp
30 to 34
-506
-0.7pp
35 to 39
-424
0.0pp
40 to 44
-496
-1.0pp
45 to 49
-465
-0.7pp
50 to 54
-520
-1.3pp
55 to 59
-395
+0.5pp
60 to 64
-424
-0.1pp
65 to 69
-377
+0.2pp
70 to 74
-255
+0.4pp
75 to 79
-153
+0.9pp
80 to 84
-123
+0.5pp
85 and over
-131
+0.4pp
Data table
Five year age groups for Katanning. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Katanning (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Katanning (S)% | Count | % | Katanning (S)% | Count | pp | |
| 0 to 4 | 253 | 7.0% | 6.8% | 697 | 6.7% | 6.1% | -444 | +0.3pp |
| 5 to 9 | 228 | 6.3% | 6.3% | 646 | 6.2% | 7.6% | -418 | +0.1pp |
| 10 to 14 | 225 | 6.2% | 6.1% | 579 | 5.5% | 6.7% | -354 | +0.7pp |
| 15 to 19 | 237 | 6.5% | 6.5% | 636 | 6.1% | 5.6% | -399 | +0.4pp |
| 20 to 24 | 224 | 6.2% | 6.0% | 672 | 6.4% | 5.8% | -448 | -0.2pp |
| 25 to 29 | 242 | 6.7% | 6.7% | 733 | 7.0% | 6.4% | -491 | -0.3pp |
| 30 to 34 | 234 | 6.4% | 6.5% | 740 | 7.1% | 5.6% | -506 | -0.7pp |
| 35 to 39 | 224 | 6.2% | 5.8% | 648 | 6.2% | 6.2% | -424 | 0.0pp |
| 40 to 44 | 208 | 5.7% | 6.0% | 704 | 6.7% | 6.1% | -496 | -1.0pp |
| 45 to 49 | 212 | 5.8% | 6.1% | 677 | 6.5% | 5.7% | -465 | -0.7pp |
| 50 to 54 | 209 | 5.7% | 5.8% | 729 | 7.0% | 8.0% | -520 | -1.3pp |
| 55 to 59 | 240 | 6.6% | 6.9% | 635 | 6.1% | 6.9% | -395 | +0.5pp |
| 60 to 64 | 219 | 6.0% | 5.8% | 643 | 6.1% | 6.7% | -424 | -0.1pp |
| 65 to 69 | 212 | 5.8% | 6.2% | 589 | 5.6% | 5.0% | -377 | +0.2pp |
| 70 to 74 | 155 | 4.3% | 4.4% | 410 | 3.9% | 4.2% | -255 | +0.4pp |
| 75 to 79 | 132 | 3.6% | 3.2% | 285 | 2.7% | 3.3% | -153 | +0.9pp |
| 80 to 84 | 96 | 2.6% | 2.5% | 219 | 2.1% | 2.3% | -123 | +0.5pp |
| 85 and over | 94 | 2.6% | 2.3% | 225 | 2.2% | 2.2% | -131 | +0.4pp |
| Total | 3,637 | 100.0% | 100.0% | 10,462 | 100.0% | 100.0% | -6,825 | 0.0pp |