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, 25 to 29 year olds was the largest age group among residents in Sunnybank, accounting for 10.5% (933 people). This share was higher than Brisbane (C) (8.4%). Since 2016, the biggest change was in 20 to 24 year olds, which decreased by 391 people and 4.7 percentage points.
Section overview
Age structure - Five year age groups
Sunnybank - Total persons (Usual residence)
This table summarises five year age groups for Sunnybank 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 Sunnybank, with comparison markers for Brisbane (C).
0 to 4
2021 count
403
% of total
4.5%
Change from 2016
-0.1pp
403
4.5%
-0.1pp
5 to 9
2021 count
478
% of total
5.4%
Change from 2016
+1.3pp
478
5.4%
+1.3pp
10 to 14
2021 count
462
% of total
5.2%
Change from 2016
+1.3pp
462
5.2%
+1.3pp
15 to 19
2021 count
472
% of total
5.3%
Change from 2016
-0.8pp
472
5.3%
-0.8pp
20 to 24
2021 count
757
% of total
8.5%
Change from 2016
-4.7pp
757
8.5%
-4.7pp
25 to 29
2021 count
933
% of total
10.5%
Change from 2016
-2.2pp
933
10.5%
-2.2pp
30 to 34
2021 count
860
% of total
9.7%
Change from 2016
+0.7pp
860
9.7%
+0.7pp
35 to 39
2021 count
689
% of total
7.7%
Change from 2016
+1.3pp
689
7.7%
+1.3pp
40 to 44
2021 count
596
% of total
6.7%
Change from 2016
+1.0pp
596
6.7%
+1.0pp
45 to 49
2021 count
518
% of total
5.8%
Change from 2016
+1.2pp
518
5.8%
+1.2pp
50 to 54
2021 count
442
% of total
5.0%
Change from 2016
0.0pp
442
5.0%
0.0pp
55 to 59
2021 count
412
% of total
4.6%
Change from 2016
-0.3pp
412
4.6%
-0.3pp
60 to 64
2021 count
440
% of total
4.9%
Change from 2016
-0.2pp
440
4.9%
-0.2pp
65 to 69
2021 count
435
% of total
4.9%
Change from 2016
+0.5pp
435
4.9%
+0.5pp
70 to 74
2021 count
370
% of total
4.2%
Change from 2016
+0.7pp
370
4.2%
+0.7pp
75 to 79
2021 count
267
% of total
3.0%
Change from 2016
+0.1pp
267
3.0%
+0.1pp
80 to 84
2021 count
213
% of total
2.4%
Change from 2016
+0.4pp
213
2.4%
+0.4pp
85 and over
2021 count
172
% of total
1.9%
Change from 2016
+0.2pp
172
1.9%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+7
-0.1pp
5 to 9
+118
+1.3pp
10 to 14
+119
+1.3pp
15 to 19
-57
-0.8pp
20 to 24
-391
-4.7pp
25 to 29
-174
-2.2pp
30 to 34
+80
+0.7pp
35 to 39
+134
+1.3pp
40 to 44
+100
+1.0pp
45 to 49
+114
+1.2pp
50 to 54
+3
0.0pp
55 to 59
-14
-0.3pp
60 to 64
-6
-0.2pp
65 to 69
+56
+0.5pp
70 to 74
+67
+0.7pp
75 to 79
+18
+0.1pp
80 to 84
+40
+0.4pp
85 and over
+26
+0.2pp
Data table
Five year age groups for Sunnybank. 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 | 403 | 4.5% | 5.5% | 396 | 4.6% | 6.0% | +7 | -0.1pp |
| 5 to 9 | 478 | 5.4% | 6.0% | 360 | 4.1% | 6.0% | +118 | +1.3pp |
| 10 to 14 | 462 | 5.2% | 6.0% | 343 | 3.9% | 5.6% | +119 | +1.3pp |
| 15 to 19 | 472 | 5.3% | 6.0% | 529 | 6.1% | 6.2% | -57 | -0.8pp |
| 20 to 24 | 757 | 8.5% | 7.8% | 1,148 | 13.2% | 8.7% | -391 | -4.7pp |
| 25 to 29 | 933 | 10.5% | 8.4% | 1,107 | 12.7% | 8.8% | -174 | -2.2pp |
| 30 to 34 | 860 | 9.7% | 8.3% | 780 | 9.0% | 8.5% | +80 | +0.7pp |
| 35 to 39 | 689 | 7.7% | 8.1% | 555 | 6.4% | 7.4% | +134 | +1.3pp |
| 40 to 44 | 596 | 6.7% | 7.1% | 496 | 5.7% | 7.3% | +100 | +1.0pp |
| 45 to 49 | 518 | 5.8% | 6.8% | 404 | 4.6% | 6.9% | +114 | +1.2pp |
| 50 to 54 | 442 | 5.0% | 6.3% | 439 | 5.0% | 6.1% | +3 | 0.0pp |
| 55 to 59 | 412 | 4.6% | 5.5% | 426 | 4.9% | 5.4% | -14 | -0.3pp |
| 60 to 64 | 440 | 4.9% | 4.8% | 446 | 5.1% | 4.6% | -6 | -0.2pp |
| 65 to 69 | 435 | 4.9% | 4.0% | 379 | 4.4% | 4.0% | +56 | +0.5pp |
| 70 to 74 | 370 | 4.2% | 3.5% | 303 | 3.5% | 2.9% | +67 | +0.7pp |
| 75 to 79 | 267 | 3.0% | 2.5% | 249 | 2.9% | 2.2% | +18 | +0.1pp |
| 80 to 84 | 213 | 2.4% | 1.7% | 173 | 2.0% | 1.6% | +40 | +0.4pp |
| 85 and over | 172 | 1.9% | 1.8% | 146 | 1.7% | 1.8% | +26 | +0.2pp |
| Total | 8,892 | 100.0% | 100.0% | 8,697 | 100.0% | 100.0% | +195 | 0.0pp |