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 Petrie Terrace, accounting for 17.3% (202 people). This share was higher than Brisbane (C) (8.4%). Since 2016, the biggest change was in 50 to 54 year olds, which increased by 17 people and 1.3 percentage points.
Section overview
Age structure - Five year age groups
Petrie Terrace - Total persons (Usual residence)
This table summarises five year age groups for Petrie Terrace 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 Petrie Terrace, with comparison markers for Brisbane (C).
0 to 4
2021 count
24
% of total
2.1%
Change from 2016
-0.7pp
24
2.1%
-0.7pp
5 to 9
2021 count
31
% of total
2.7%
Change from 2016
+0.7pp
31
2.7%
+0.7pp
10 to 14
2021 count
30
% of total
2.6%
Change from 2016
-0.3pp
30
2.6%
-0.3pp
15 to 19
2021 count
50
% of total
4.3%
Change from 2016
+0.1pp
50
4.3%
+0.1pp
20 to 24
2021 count
192
% of total
16.4%
Change from 2016
-1.7pp
192
16.4%
-1.7pp
25 to 29
2021 count
202
% of total
17.3%
Change from 2016
-0.8pp
202
17.3%
-0.8pp
30 to 34
2021 count
139
% of total
11.9%
Change from 2016
0.0pp
139
11.9%
0.0pp
35 to 39
2021 count
78
% of total
6.7%
Change from 2016
0.0pp
78
6.7%
0.0pp
40 to 44
2021 count
74
% of total
6.3%
Change from 2016
-0.7pp
74
6.3%
-0.7pp
45 to 49
2021 count
74
% of total
6.3%
Change from 2016
-0.9pp
74
6.3%
-0.9pp
50 to 54
2021 count
85
% of total
7.3%
Change from 2016
+1.3pp
85
7.3%
+1.3pp
55 to 59
2021 count
56
% of total
4.8%
Change from 2016
+1.1pp
56
4.8%
+1.1pp
60 to 64
2021 count
28
% of total
2.4%
Change from 2016
-1.1pp
28
2.4%
-1.1pp
65 to 69
2021 count
40
% of total
3.4%
Change from 2016
+0.9pp
40
3.4%
+0.9pp
70 to 74
2021 count
21
% of total
1.8%
Change from 2016
+0.6pp
21
1.8%
+0.6pp
75 to 79
2021 count
16
% of total
1.4%
Change from 2016
0.0pp
16
1.4%
0.0pp
80 to 84
2021 count
12
% of total
1.0%
Change from 2016
+0.6pp
12
1.0%
+0.6pp
85 and over
2021 count
3
% of total
0.3%
Change from 2016
-0.1pp
3
0.3%
-0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-8
-0.7pp
5 to 9
+8
+0.7pp
10 to 14
-3
-0.3pp
15 to 19
+3
+0.1pp
20 to 24
-12
-1.7pp
25 to 29
-2
-0.8pp
30 to 34
+5
0.0pp
35 to 39
+3
0.0pp
40 to 44
-5
-0.7pp
45 to 49
-7
-0.9pp
50 to 54
+17
+1.3pp
55 to 59
+14
+1.1pp
60 to 64
-11
-1.1pp
65 to 69
+12
+0.9pp
70 to 74
+8
+0.6pp
75 to 79
0
0.0pp
80 to 84
+8
+0.6pp
85 and over
-1
-0.1pp
Data table
Five year age groups for Petrie Terrace. 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 | 24 | 2.1% | 5.5% | 32 | 2.8% | 6.0% | -8 | -0.7pp |
| 5 to 9 | 31 | 2.7% | 6.0% | 23 | 2.0% | 6.0% | +8 | +0.7pp |
| 10 to 14 | 30 | 2.6% | 6.0% | 33 | 2.9% | 5.6% | -3 | -0.3pp |
| 15 to 19 | 50 | 4.3% | 6.0% | 47 | 4.2% | 6.2% | +3 | +0.1pp |
| 20 to 24 | 192 | 16.4% | 7.8% | 204 | 18.1% | 8.7% | -12 | -1.7pp |
| 25 to 29 | 202 | 17.3% | 8.4% | 204 | 18.1% | 8.8% | -2 | -0.8pp |
| 30 to 34 | 139 | 11.9% | 8.3% | 134 | 11.9% | 8.5% | +5 | 0.0pp |
| 35 to 39 | 78 | 6.7% | 8.1% | 75 | 6.7% | 7.4% | +3 | 0.0pp |
| 40 to 44 | 74 | 6.3% | 7.1% | 79 | 7.0% | 7.3% | -5 | -0.7pp |
| 45 to 49 | 74 | 6.3% | 6.8% | 81 | 7.2% | 6.9% | -7 | -0.9pp |
| 50 to 54 | 85 | 7.3% | 6.3% | 68 | 6.0% | 6.1% | +17 | +1.3pp |
| 55 to 59 | 56 | 4.8% | 5.5% | 42 | 3.7% | 5.4% | +14 | +1.1pp |
| 60 to 64 | 28 | 2.4% | 4.8% | 39 | 3.5% | 4.6% | -11 | -1.1pp |
| 65 to 69 | 40 | 3.4% | 4.0% | 28 | 2.5% | 4.0% | +12 | +0.9pp |
| 70 to 74 | 21 | 1.8% | 3.5% | 13 | 1.2% | 2.9% | +8 | +0.6pp |
| 75 to 79 | 16 | 1.4% | 2.5% | 16 | 1.4% | 2.2% | 0 | 0.0pp |
| 80 to 84 | 12 | 1.0% | 1.7% | 4 | 0.4% | 1.6% | +8 | +0.6pp |
| 85 and over | 3 | 0.3% | 1.8% | 4 | 0.4% | 1.8% | -1 | -0.1pp |
| Total | 1,168 | 100.0% | 100.0% | 1,124 | 100.0% | 100.0% | +44 | 0.0pp |