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, 70 to 74 year olds was the largest age group among residents in Coodanup, accounting for 8% (349 people). This share was higher than Mandurah (C) (6.9%). Since 2016, the biggest change was in 45 to 49 year olds, which decreased by 165 people and 3.4 percentage points.
Section overview
Age structure - Five year age groups
Coodanup - Total persons (Usual residence)
This table summarises five year age groups for Coodanup in 2021 for persons, with comparison against Mandurah (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Coodanup, with comparison markers for Mandurah (C).
0 to 4
2021 count
213
% of total
4.9%
Change from 2016
+0.4pp
213
4.9%
+0.4pp
5 to 9
2021 count
246
% of total
5.6%
Change from 2016
+0.2pp
246
5.6%
+0.2pp
10 to 14
2021 count
287
% of total
6.6%
Change from 2016
+0.9pp
287
6.6%
+0.9pp
15 to 19
2021 count
241
% of total
5.5%
Change from 2016
-1.9pp
241
5.5%
-1.9pp
20 to 24
2021 count
214
% of total
4.9%
Change from 2016
-0.9pp
214
4.9%
-0.9pp
25 to 29
2021 count
206
% of total
4.7%
Change from 2016
+0.5pp
206
4.7%
+0.5pp
30 to 34
2021 count
200
% of total
4.6%
Change from 2016
-0.4pp
200
4.6%
-0.4pp
35 to 39
2021 count
197
% of total
4.5%
Change from 2016
-0.6pp
197
4.5%
-0.6pp
40 to 44
2021 count
209
% of total
4.8%
Change from 2016
-1.9pp
209
4.8%
-1.9pp
45 to 49
2021 count
219
% of total
5.0%
Change from 2016
-3.4pp
219
5.0%
-3.4pp
50 to 54
2021 count
263
% of total
6.0%
Change from 2016
-2.2pp
263
6.0%
-2.2pp
55 to 59
2021 count
241
% of total
5.5%
Change from 2016
-1.9pp
241
5.5%
-1.9pp
60 to 64
2021 count
300
% of total
6.9%
Change from 2016
-0.3pp
300
6.9%
-0.3pp
65 to 69
2021 count
318
% of total
7.3%
Change from 2016
+0.5pp
318
7.3%
+0.5pp
70 to 74
2021 count
349
% of total
8.0%
Change from 2016
+3.4pp
349
8.0%
+3.4pp
75 to 79
2021 count
276
% of total
6.3%
Change from 2016
+2.2pp
276
6.3%
+2.2pp
80 to 84
2021 count
191
% of total
4.4%
Change from 2016
+2.1pp
191
4.4%
+2.1pp
85 and over
2021 count
166
% of total
3.8%
Change from 2016
+2.5pp
166
3.8%
+2.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+8
+0.4pp
5 to 9
-3
+0.2pp
10 to 14
+27
+0.9pp
15 to 19
-98
-1.9pp
20 to 24
-52
-0.9pp
25 to 29
+12
+0.5pp
30 to 34
-29
-0.4pp
35 to 39
-36
-0.6pp
40 to 44
-98
-1.9pp
45 to 49
-165
-3.4pp
50 to 54
-113
-2.2pp
55 to 59
-97
-1.9pp
60 to 64
-32
-0.3pp
65 to 69
+4
+0.5pp
70 to 74
+136
+3.4pp
75 to 79
+88
+2.2pp
80 to 84
+87
+2.1pp
85 and over
+105
+2.5pp
Data table
Five year age groups for Coodanup. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mandurah (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mandurah (C)% | Count | % | Mandurah (C)% | Count | pp | |
| 0 to 4 | 213 | 4.9% | 5.3% | 205 | 4.5% | 5.8% | +8 | +0.4pp |
| 5 to 9 | 246 | 5.6% | 5.8% | 249 | 5.4% | 6.3% | -3 | +0.2pp |
| 10 to 14 | 287 | 6.6% | 6.3% | 260 | 5.7% | 5.9% | +27 | +0.9pp |
| 15 to 19 | 241 | 5.5% | 5.5% | 339 | 7.4% | 6.0% | -98 | -1.9pp |
| 20 to 24 | 214 | 4.9% | 5.0% | 266 | 5.8% | 5.4% | -52 | -0.9pp |
| 25 to 29 | 206 | 4.7% | 4.8% | 194 | 4.2% | 5.2% | +12 | +0.5pp |
| 30 to 34 | 200 | 4.6% | 5.4% | 229 | 5.0% | 5.7% | -29 | -0.4pp |
| 35 to 39 | 197 | 4.5% | 5.8% | 233 | 5.1% | 5.4% | -36 | -0.6pp |
| 40 to 44 | 209 | 4.8% | 5.3% | 307 | 6.7% | 6.1% | -98 | -1.9pp |
| 45 to 49 | 219 | 5.0% | 5.9% | 384 | 8.4% | 6.4% | -165 | -3.4pp |
| 50 to 54 | 263 | 6.0% | 6.2% | 376 | 8.2% | 6.5% | -113 | -2.2pp |
| 55 to 59 | 241 | 5.5% | 6.6% | 338 | 7.4% | 6.3% | -97 | -1.9pp |
| 60 to 64 | 300 | 6.9% | 6.7% | 332 | 7.2% | 6.4% | -32 | -0.3pp |
| 65 to 69 | 318 | 7.3% | 6.9% | 314 | 6.8% | 6.8% | +4 | +0.5pp |
| 70 to 74 | 349 | 8.0% | 6.9% | 213 | 4.6% | 5.7% | +136 | +3.4pp |
| 75 to 79 | 276 | 6.3% | 5.1% | 188 | 4.1% | 4.6% | +88 | +2.2pp |
| 80 to 84 | 191 | 4.4% | 3.6% | 104 | 2.3% | 3.0% | +87 | +2.1pp |
| 85 and over | 166 | 3.8% | 3.0% | 61 | 1.3% | 2.6% | +105 | +2.5pp |
| Total | 4,366 | 100.0% | 100.0% | 4,597 | 100.0% | 100.0% | -231 | 0.0pp |