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 Wacol, accounting for 17.2% (730 people). This share was higher than Brisbane (C) (8.3%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 167 people and 2.5 percentage points.
Section overview
Age structure - Five year age groups
Wacol - Total persons (Usual residence)
This table summarises five year age groups for Wacol in 2021 for persons, with comparison against Brisbane (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Wacol, with comparison markers for Brisbane (C).
0 to 4
2021 count
43
% of total
1.0%
Change from 2016
0.0pp
43
1.0%
0.0pp
5 to 9
2021 count
39
% of total
0.9%
Change from 2016
-0.3pp
39
0.9%
-0.3pp
10 to 14
2021 count
35
% of total
0.8%
Change from 2016
-0.2pp
35
0.8%
-0.2pp
15 to 19
2021 count
189
% of total
4.4%
Change from 2016
-0.1pp
189
4.4%
-0.1pp
20 to 24
2021 count
396
% of total
9.3%
Change from 2016
-4.0pp
396
9.3%
-4.0pp
25 to 29
2021 count
595
% of total
14.0%
Change from 2016
-2.6pp
595
14.0%
-2.6pp
30 to 34
2021 count
730
% of total
17.2%
Change from 2016
+1.2pp
730
17.2%
+1.2pp
35 to 39
2021 count
641
% of total
15.1%
Change from 2016
+2.5pp
641
15.1%
+2.5pp
40 to 44
2021 count
519
% of total
12.2%
Change from 2016
+1.9pp
519
12.2%
+1.9pp
45 to 49
2021 count
341
% of total
8.0%
Change from 2016
+0.7pp
341
8.0%
+0.7pp
50 to 54
2021 count
235
% of total
5.5%
Change from 2016
+0.2pp
235
5.5%
+0.2pp
55 to 59
2021 count
163
% of total
3.8%
Change from 2016
+0.2pp
163
3.8%
+0.2pp
60 to 64
2021 count
106
% of total
2.5%
Change from 2016
-0.1pp
106
2.5%
-0.1pp
65 to 69
2021 count
78
% of total
1.8%
Change from 2016
-0.5pp
78
1.8%
-0.5pp
70 to 74
2021 count
46
% of total
1.1%
Change from 2016
0.0pp
46
1.1%
0.0pp
75 to 79
2021 count
32
% of total
0.8%
Change from 2016
-0.2pp
32
0.8%
-0.2pp
80 to 84
2021 count
25
% of total
0.6%
Change from 2016
+0.1pp
25
0.6%
+0.1pp
85 and over
2021 count
14
% of total
0.3%
Change from 2016
0.0pp
14
0.3%
0.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+6
0.0pp
5 to 9
-5
-0.3pp
10 to 14
-1
-0.2pp
15 to 19
+19
-0.1pp
20 to 24
-105
-4.0pp
25 to 29
-30
-2.6pp
30 to 34
+130
+1.2pp
35 to 39
+167
+2.5pp
40 to 44
+130
+1.9pp
45 to 49
+67
+0.7pp
50 to 54
+35
+0.2pp
55 to 59
+28
+0.2pp
60 to 64
+7
-0.1pp
65 to 69
-7
-0.5pp
70 to 74
+4
0.0pp
75 to 79
-7
-0.2pp
80 to 84
+8
+0.1pp
85 and over
+4
0.0pp
Data table
Five year age groups for Wacol. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Brisbane (C)% | Count | % | Brisbane (C)% | Count | pp | |
| 0 to 4 | 43 | 1.0% | 5.5% | 37 | 1.0% | 6.0% | +6 | 0.0pp |
| 5 to 9 | 39 | 0.9% | 6.0% | 44 | 1.2% | 6.0% | -5 | -0.3pp |
| 10 to 14 | 35 | 0.8% | 6.0% | 36 | 1.0% | 5.6% | -1 | -0.2pp |
| 15 to 19 | 189 | 4.4% | 6.0% | 170 | 4.5% | 6.2% | +19 | -0.1pp |
| 20 to 24 | 396 | 9.3% | 7.8% | 501 | 13.3% | 8.7% | -105 | -4.0pp |
| 25 to 29 | 595 | 14.0% | 8.4% | 625 | 16.6% | 8.8% | -30 | -2.6pp |
| 30 to 34 | 730 | 17.2% | 8.3% | 600 | 16.0% | 8.5% | +130 | +1.2pp |
| 35 to 39 | 641 | 15.1% | 8.1% | 474 | 12.6% | 7.4% | +167 | +2.5pp |
| 40 to 44 | 519 | 12.2% | 7.1% | 389 | 10.3% | 7.3% | +130 | +1.9pp |
| 45 to 49 | 341 | 8.0% | 6.8% | 274 | 7.3% | 6.9% | +67 | +0.7pp |
| 50 to 54 | 235 | 5.5% | 6.3% | 200 | 5.3% | 6.1% | +35 | +0.2pp |
| 55 to 59 | 163 | 3.8% | 5.5% | 135 | 3.6% | 5.4% | +28 | +0.2pp |
| 60 to 64 | 106 | 2.5% | 4.8% | 99 | 2.6% | 4.6% | +7 | -0.1pp |
| 65 to 69 | 78 | 1.8% | 4.0% | 85 | 2.3% | 4.0% | -7 | -0.5pp |
| 70 to 74 | 46 | 1.1% | 3.5% | 42 | 1.1% | 2.9% | +4 | 0.0pp |
| 75 to 79 | 32 | 0.8% | 2.5% | 39 | 1.0% | 2.2% | -7 | -0.2pp |
| 80 to 84 | 25 | 0.6% | 1.7% | 17 | 0.5% | 1.6% | +8 | +0.1pp |
| 85 and over | 14 | 0.3% | 1.8% | 10 | 0.3% | 1.8% | +4 | 0.0pp |
| Total | 4,253 | 100.0% | 100.0% | 3,761 | 100.0% | 100.0% | +492 | 0.0pp |