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 Mindarie (WA), accounting for 10.2% (802 people). This share was higher than Wanneroo (C) (6.7%). Since 2016, the biggest change was in 30 to 34 year olds, which decreased by 346 people and 4.2 percentage points.
Section overview
Age structure - Five year age groups
Mindarie (WA) - Total persons (Usual residence)
This table summarises five year age groups for Mindarie (WA) in 2021 for persons, with comparison against Wanneroo (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Mindarie (WA), with comparison markers for Wanneroo (C).
0 to 4
2021 count
282
% of total
3.6%
Change from 2016
-4.1pp
282
3.6%
-4.1pp
5 to 9
2021 count
398
% of total
5.1%
Change from 2016
-3.3pp
398
5.1%
-3.3pp
10 to 14
2021 count
577
% of total
7.3%
Change from 2016
-0.5pp
577
7.3%
-0.5pp
15 to 19
2021 count
671
% of total
8.5%
Change from 2016
+1.1pp
671
8.5%
+1.1pp
20 to 24
2021 count
596
% of total
7.6%
Change from 2016
+0.1pp
596
7.6%
+0.1pp
25 to 29
2021 count
311
% of total
4.0%
Change from 2016
-3.7pp
311
4.0%
-3.7pp
30 to 34
2021 count
243
% of total
3.1%
Change from 2016
-4.2pp
243
3.1%
-4.2pp
35 to 39
2021 count
344
% of total
4.4%
Change from 2016
-1.8pp
344
4.4%
-1.8pp
40 to 44
2021 count
416
% of total
5.3%
Change from 2016
-0.9pp
416
5.3%
-0.9pp
45 to 49
2021 count
692
% of total
8.8%
Change from 2016
+2.5pp
692
8.8%
+2.5pp
50 to 54
2021 count
802
% of total
10.2%
Change from 2016
+3.6pp
802
10.2%
+3.6pp
55 to 59
2021 count
755
% of total
9.6%
Change from 2016
+3.5pp
755
9.6%
+3.5pp
60 to 64
2021 count
501
% of total
6.4%
Change from 2016
+1.5pp
501
6.4%
+1.5pp
65 to 69
2021 count
339
% of total
4.3%
Change from 2016
+0.3pp
339
4.3%
+0.3pp
70 to 74
2021 count
318
% of total
4.0%
Change from 2016
+1.5pp
318
4.0%
+1.5pp
75 to 79
2021 count
274
% of total
3.5%
Change from 2016
+2.0pp
274
3.5%
+2.0pp
80 to 84
2021 count
183
% of total
2.3%
Change from 2016
+1.4pp
183
2.3%
+1.4pp
85 and over
2021 count
160
% of total
2.0%
Change from 2016
+1.1pp
160
2.0%
+1.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-345
-4.1pp
5 to 9
-284
-3.3pp
10 to 14
-59
-0.5pp
15 to 19
+71
+1.1pp
20 to 24
-10
+0.1pp
25 to 29
-311
-3.7pp
30 to 34
-346
-4.2pp
35 to 39
-158
-1.8pp
40 to 44
-87
-0.9pp
45 to 49
+180
+2.5pp
50 to 54
+265
+3.6pp
55 to 59
+263
+3.5pp
60 to 64
+102
+1.5pp
65 to 69
+13
+0.3pp
70 to 74
+118
+1.5pp
75 to 79
+154
+2.0pp
80 to 84
+112
+1.4pp
85 and over
+90
+1.1pp
Data table
Five year age groups for Mindarie (WA). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Wanneroo (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Wanneroo (C)% | Count | % | Wanneroo (C)% | Count | pp | |
| 0 to 4 | 282 | 3.6% | 7.1% | 627 | 7.7% | 8.0% | -345 | -4.1pp |
| 5 to 9 | 398 | 5.1% | 7.6% | 682 | 8.4% | 7.9% | -284 | -3.3pp |
| 10 to 14 | 577 | 7.3% | 7.4% | 636 | 7.8% | 7.1% | -59 | -0.5pp |
| 15 to 19 | 671 | 8.5% | 6.6% | 600 | 7.4% | 7.1% | +71 | +1.1pp |
| 20 to 24 | 596 | 7.6% | 6.4% | 606 | 7.5% | 6.8% | -10 | +0.1pp |
| 25 to 29 | 311 | 4.0% | 6.5% | 622 | 7.7% | 7.5% | -311 | -3.7pp |
| 30 to 34 | 243 | 3.1% | 7.4% | 589 | 7.3% | 8.1% | -346 | -4.2pp |
| 35 to 39 | 344 | 4.4% | 7.9% | 502 | 6.2% | 7.5% | -158 | -1.8pp |
| 40 to 44 | 416 | 5.3% | 6.9% | 503 | 6.2% | 7.6% | -87 | -0.9pp |
| 45 to 49 | 692 | 8.8% | 7.0% | 512 | 6.3% | 7.4% | +180 | +2.5pp |
| 50 to 54 | 802 | 10.2% | 6.7% | 537 | 6.6% | 6.2% | +265 | +3.6pp |
| 55 to 59 | 755 | 9.6% | 5.7% | 492 | 6.1% | 5.0% | +263 | +3.5pp |
| 60 to 64 | 501 | 6.4% | 4.7% | 399 | 4.9% | 3.9% | +102 | +1.5pp |
| 65 to 69 | 339 | 4.3% | 3.8% | 326 | 4.0% | 3.5% | +13 | +0.3pp |
| 70 to 74 | 318 | 4.0% | 3.3% | 200 | 2.5% | 2.4% | +118 | +1.5pp |
| 75 to 79 | 274 | 3.5% | 2.2% | 120 | 1.5% | 1.8% | +154 | +2.0pp |
| 80 to 84 | 183 | 2.3% | 1.5% | 71 | 0.9% | 1.2% | +112 | +1.4pp |
| 85 and over | 160 | 2.0% | 1.3% | 70 | 0.9% | 1.0% | +90 | +1.1pp |
| Total | 7,867 | 100.0% | 100.0% | 8,110 | 100.0% | 100.0% | -243 | 0.0pp |