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, 15 to 19 year olds was the largest age group among residents in Peppermint Grove (S), accounting for 13.9% (222 people). This share was higher than Greater Perth (5.8%). Since 2016, the biggest change was in 10 to 14 year olds, which decreased by 41 people and 2.3 percentage points.
Section overview
Age structure - Five year age groups
Peppermint Grove (S) - Total persons (Usual residence)
This table summarises five year age groups for Peppermint Grove (S) in 2021 for persons, with comparison against Greater Perth and change since 2016.
Chart view
Age structure - Five year age groups snapshot
2021 distribution by category for Peppermint Grove (S), with comparison markers for Greater Perth.
0 to 4
2021 count
50
% of total
3.1%
Change from 2016
+0.2pp
50
3.1%
+0.2pp
5 to 9
2021 count
67
% of total
4.2%
Change from 2016
-0.9pp
67
4.2%
-0.9pp
10 to 14
2021 count
140
% of total
8.8%
Change from 2016
-2.3pp
140
8.8%
-2.3pp
15 to 19
2021 count
222
% of total
13.9%
Change from 2016
+0.8pp
222
13.9%
+0.8pp
20 to 24
2021 count
108
% of total
6.8%
Change from 2016
-0.7pp
108
6.8%
-0.7pp
25 to 29
2021 count
62
% of total
3.9%
Change from 2016
-0.7pp
62
3.9%
-0.7pp
30 to 34
2021 count
45
% of total
2.8%
Change from 2016
-0.4pp
45
2.8%
-0.4pp
35 to 39
2021 count
49
% of total
3.1%
Change from 2016
-0.5pp
49
3.1%
-0.5pp
40 to 44
2021 count
67
% of total
4.2%
Change from 2016
-0.8pp
67
4.2%
-0.8pp
45 to 49
2021 count
100
% of total
6.3%
Change from 2016
-0.4pp
100
6.3%
-0.4pp
50 to 54
2021 count
120
% of total
7.5%
Change from 2016
-0.4pp
120
7.5%
-0.4pp
55 to 59
2021 count
116
% of total
7.3%
Change from 2016
+0.8pp
116
7.3%
+0.8pp
60 to 64
2021 count
105
% of total
6.6%
Change from 2016
-0.5pp
105
6.6%
-0.5pp
65 to 69
2021 count
111
% of total
7.0%
Change from 2016
+2.0pp
111
7.0%
+2.0pp
70 to 74
2021 count
67
% of total
4.2%
Change from 2016
0.0pp
67
4.2%
0.0pp
75 to 79
2021 count
77
% of total
4.8%
Change from 2016
+1.6pp
77
4.8%
+1.6pp
80 to 84
2021 count
39
% of total
2.4%
Change from 2016
-0.1pp
39
2.4%
-0.1pp
85 and over
2021 count
39
% of total
2.4%
Change from 2016
+0.2pp
39
2.4%
+0.2pp
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+3
+0.2pp
5 to 9
-17
-0.9pp
10 to 14
-41
-2.3pp
15 to 19
+8
+0.8pp
20 to 24
-14
-0.7pp
25 to 29
-14
-0.7pp
30 to 34
-8
-0.4pp
35 to 39
-10
-0.5pp
40 to 44
-14
-0.8pp
45 to 49
-10
-0.4pp
50 to 54
-10
-0.4pp
55 to 59
+9
+0.8pp
60 to 64
-11
-0.5pp
65 to 69
+30
+2.0pp
70 to 74
-1
0.0pp
75 to 79
+24
+1.6pp
80 to 84
-2
-0.1pp
85 and over
+3
+0.2pp
Data table
Five year age groups for Peppermint Grove (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Greater Perth.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Greater Perth% | Count | % | Greater Perth% | Count | pp | |
| 0 to 4 | 50 | 3.1% | 6.1% | 47 | 2.9% | 6.5% | +3 | +0.2pp |
| 5 to 9 | 67 | 4.2% | 6.4% | 84 | 5.1% | 6.5% | -17 | -0.9pp |
| 10 to 14 | 140 | 8.8% | 6.4% | 181 | 11.1% | 6.0% | -41 | -2.3pp |
| 15 to 19 | 222 | 13.9% | 5.8% | 214 | 13.1% | 6.2% | +8 | +0.8pp |
| 20 to 24 | 108 | 6.8% | 6.3% | 122 | 7.5% | 6.9% | -14 | -0.7pp |
| 25 to 29 | 62 | 3.9% | 6.8% | 76 | 4.6% | 7.7% | -14 | -0.7pp |
| 30 to 34 | 45 | 2.8% | 7.6% | 53 | 3.2% | 8.0% | -8 | -0.4pp |
| 35 to 39 | 49 | 3.1% | 7.7% | 59 | 3.6% | 7.1% | -10 | -0.5pp |
| 40 to 44 | 67 | 4.2% | 6.8% | 81 | 5.0% | 6.9% | -14 | -0.8pp |
| 45 to 49 | 100 | 6.3% | 6.5% | 110 | 6.7% | 6.9% | -10 | -0.4pp |
| 50 to 54 | 120 | 7.5% | 6.4% | 130 | 7.9% | 6.4% | -10 | -0.4pp |
| 55 to 59 | 116 | 7.3% | 5.9% | 107 | 6.5% | 5.8% | +9 | +0.8pp |
| 60 to 64 | 105 | 6.6% | 5.4% | 116 | 7.1% | 5.1% | -11 | -0.5pp |
| 65 to 69 | 111 | 7.0% | 4.8% | 81 | 5.0% | 4.6% | +30 | +2.0pp |
| 70 to 74 | 67 | 4.2% | 4.2% | 68 | 4.2% | 3.3% | -1 | 0.0pp |
| 75 to 79 | 77 | 4.8% | 2.9% | 53 | 3.2% | 2.5% | +24 | +1.6pp |
| 80 to 84 | 39 | 2.4% | 2.0% | 41 | 2.5% | 1.7% | -2 | -0.1pp |
| 85 and over | 39 | 2.4% | 1.9% | 36 | 2.2% | 1.8% | +3 | +0.2pp |
| Total | 1,597 | 100.0% | 100.0% | 1,636 | 100.0% | 100.0% | -39 | 0.0pp |