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 East Brisbane, accounting for 13.8% (853 people). This share was higher than Brisbane (C) (8.4%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 108 people and 1.3 percentage points.
Section overview
Age structure - Five year age groups
East Brisbane - Total persons (Usual residence)
This table summarises five year age groups for East Brisbane 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 East Brisbane, with comparison markers for Brisbane (C).
0 to 4
2021 count
212
% of total
3.4%
Change from 2016
-1.3pp
212
3.4%
-1.3pp
5 to 9
2021 count
228
% of total
3.7%
Change from 2016
+0.1pp
228
3.7%
+0.1pp
10 to 14
2021 count
242
% of total
3.9%
Change from 2016
-0.1pp
242
3.9%
-0.1pp
15 to 19
2021 count
278
% of total
4.5%
Change from 2016
-1.2pp
278
4.5%
-1.2pp
20 to 24
2021 count
740
% of total
12.0%
Change from 2016
-0.4pp
740
12.0%
-0.4pp
25 to 29
2021 count
853
% of total
13.8%
Change from 2016
-1.3pp
853
13.8%
-1.3pp
30 to 34
2021 count
707
% of total
11.4%
Change from 2016
-0.2pp
707
11.4%
-0.2pp
35 to 39
2021 count
575
% of total
9.3%
Change from 2016
+1.3pp
575
9.3%
+1.3pp
40 to 44
2021 count
431
% of total
7.0%
Change from 2016
+0.7pp
431
7.0%
+0.7pp
45 to 49
2021 count
382
% of total
6.2%
Change from 2016
+0.8pp
382
6.2%
+0.8pp
50 to 54
2021 count
371
% of total
6.0%
Change from 2016
+0.4pp
371
6.0%
+0.4pp
55 to 59
2021 count
314
% of total
5.1%
Change from 2016
+0.4pp
314
5.1%
+0.4pp
60 to 64
2021 count
234
% of total
3.8%
Change from 2016
-0.4pp
234
3.8%
-0.4pp
65 to 69
2021 count
212
% of total
3.4%
Change from 2016
+0.3pp
212
3.4%
+0.3pp
70 to 74
2021 count
151
% of total
2.4%
Change from 2016
+0.1pp
151
2.4%
+0.1pp
75 to 79
2021 count
114
% of total
1.8%
Change from 2016
+0.2pp
114
1.8%
+0.2pp
80 to 84
2021 count
66
% of total
1.1%
Change from 2016
-0.2pp
66
1.1%
-0.2pp
85 and over
2021 count
48
% of total
0.8%
Change from 2016
+0.1pp
48
0.8%
+0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-59
-1.3pp
5 to 9
+16
+0.1pp
10 to 14
+7
-0.1pp
15 to 19
-55
-1.2pp
20 to 24
+15
-0.4pp
25 to 29
-27
-1.3pp
30 to 34
+31
-0.2pp
35 to 39
+108
+1.3pp
40 to 44
+66
+0.7pp
45 to 49
+65
+0.8pp
50 to 54
+45
+0.4pp
55 to 59
+41
+0.4pp
60 to 64
-12
-0.4pp
65 to 69
+33
+0.3pp
70 to 74
+14
+0.1pp
75 to 79
+21
+0.2pp
80 to 84
-10
-0.2pp
85 and over
+8
+0.1pp
Data table
Five year age groups for East Brisbane. 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 | 212 | 3.4% | 5.5% | 271 | 4.7% | 6.0% | -59 | -1.3pp |
| 5 to 9 | 228 | 3.7% | 6.0% | 212 | 3.6% | 6.0% | +16 | +0.1pp |
| 10 to 14 | 242 | 3.9% | 6.0% | 235 | 4.0% | 5.6% | +7 | -0.1pp |
| 15 to 19 | 278 | 4.5% | 6.0% | 333 | 5.7% | 6.2% | -55 | -1.2pp |
| 20 to 24 | 740 | 12.0% | 7.8% | 725 | 12.4% | 8.7% | +15 | -0.4pp |
| 25 to 29 | 853 | 13.8% | 8.4% | 880 | 15.1% | 8.8% | -27 | -1.3pp |
| 30 to 34 | 707 | 11.4% | 8.3% | 676 | 11.6% | 8.5% | +31 | -0.2pp |
| 35 to 39 | 575 | 9.3% | 8.1% | 467 | 8.0% | 7.4% | +108 | +1.3pp |
| 40 to 44 | 431 | 7.0% | 7.1% | 365 | 6.3% | 7.3% | +66 | +0.7pp |
| 45 to 49 | 382 | 6.2% | 6.8% | 317 | 5.4% | 6.9% | +65 | +0.8pp |
| 50 to 54 | 371 | 6.0% | 6.3% | 326 | 5.6% | 6.1% | +45 | +0.4pp |
| 55 to 59 | 314 | 5.1% | 5.5% | 273 | 4.7% | 5.4% | +41 | +0.4pp |
| 60 to 64 | 234 | 3.8% | 4.8% | 246 | 4.2% | 4.6% | -12 | -0.4pp |
| 65 to 69 | 212 | 3.4% | 4.0% | 179 | 3.1% | 4.0% | +33 | +0.3pp |
| 70 to 74 | 151 | 2.4% | 3.5% | 137 | 2.3% | 2.9% | +14 | +0.1pp |
| 75 to 79 | 114 | 1.8% | 2.5% | 93 | 1.6% | 2.2% | +21 | +0.2pp |
| 80 to 84 | 66 | 1.1% | 1.7% | 76 | 1.3% | 1.6% | -10 | -0.2pp |
| 85 and over | 48 | 0.8% | 1.8% | 40 | 0.7% | 1.8% | +8 | +0.1pp |
| Total | 6,186 | 100.0% | 100.0% | 5,830 | 100.0% | 100.0% | +356 | 0.0pp |