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 Highgate (WA), accounting for 16.2% (377 people). This share was higher than Vincent (C) (11.5%). Since 2016, the biggest change was in 25 to 29 year olds, which decreased by 76 people and 3.5 percentage points.
Section overview
Age structure - Five year age groups
Highgate (WA) - Total persons (Usual residence)
This table summarises five year age groups for Highgate (WA) in 2021 for persons, with comparison against Vincent (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Highgate (WA), with comparison markers for Vincent (C).
0 to 4
2021 count
72
% of total
3.1%
Change from 2016
-0.2pp
72
3.1%
-0.2pp
5 to 9
2021 count
81
% of total
3.5%
Change from 2016
+1.2pp
81
3.5%
+1.2pp
10 to 14
2021 count
57
% of total
2.5%
Change from 2016
+0.5pp
57
2.5%
+0.5pp
15 to 19
2021 count
52
% of total
2.2%
Change from 2016
0.0pp
52
2.2%
0.0pp
20 to 24
2021 count
180
% of total
7.7%
Change from 2016
-0.1pp
180
7.7%
-0.1pp
25 to 29
2021 count
371
% of total
16.0%
Change from 2016
-3.5pp
371
16.0%
-3.5pp
30 to 34
2021 count
377
% of total
16.2%
Change from 2016
-1.4pp
377
16.2%
-1.4pp
35 to 39
2021 count
252
% of total
10.8%
Change from 2016
+0.7pp
252
10.8%
+0.7pp
40 to 44
2021 count
142
% of total
6.1%
Change from 2016
-0.1pp
142
6.1%
-0.1pp
45 to 49
2021 count
125
% of total
5.4%
Change from 2016
0.0pp
125
5.4%
0.0pp
50 to 54
2021 count
134
% of total
5.8%
Change from 2016
+1.0pp
134
5.8%
+1.0pp
55 to 59
2021 count
102
% of total
4.4%
Change from 2016
-0.9pp
102
4.4%
-0.9pp
60 to 64
2021 count
123
% of total
5.3%
Change from 2016
+0.7pp
123
5.3%
+0.7pp
65 to 69
2021 count
79
% of total
3.4%
Change from 2016
-0.1pp
79
3.4%
-0.1pp
70 to 74
2021 count
81
% of total
3.5%
Change from 2016
+1.4pp
81
3.5%
+1.4pp
75 to 79
2021 count
40
% of total
1.7%
Change from 2016
-0.2pp
40
1.7%
-0.2pp
80 to 84
2021 count
32
% of total
1.4%
Change from 2016
+0.6pp
32
1.4%
+0.6pp
85 and over
2021 count
20
% of total
0.9%
Change from 2016
-0.1pp
20
0.9%
-0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-5
-0.2pp
5 to 9
+27
+1.2pp
10 to 14
+11
+0.5pp
15 to 19
+3
0.0pp
20 to 24
+1
-0.1pp
25 to 29
-76
-3.5pp
30 to 34
-26
-1.4pp
35 to 39
+20
+0.7pp
40 to 44
-1
-0.1pp
45 to 49
0
0.0pp
50 to 54
+23
+1.0pp
55 to 59
-20
-0.9pp
60 to 64
+18
+0.7pp
65 to 69
-1
-0.1pp
70 to 74
+33
+1.4pp
75 to 79
-3
-0.2pp
80 to 84
+14
+0.6pp
85 and over
-4
-0.1pp
Data table
Five year age groups for Highgate (WA). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Vincent (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Vincent (C)% | Count | % | Vincent (C)% | Count | pp | |
| 0 to 4 | 72 | 3.1% | 5.2% | 77 | 3.3% | 5.5% | -5 | -0.2pp |
| 5 to 9 | 81 | 3.5% | 4.7% | 54 | 2.3% | 5.0% | +27 | +1.2pp |
| 10 to 14 | 57 | 2.5% | 4.4% | 46 | 2.0% | 3.6% | +11 | +0.5pp |
| 15 to 19 | 52 | 2.2% | 3.5% | 49 | 2.2% | 3.6% | +3 | 0.0pp |
| 20 to 24 | 180 | 7.7% | 7.0% | 179 | 7.8% | 7.4% | +1 | -0.1pp |
| 25 to 29 | 371 | 16.0% | 11.2% | 447 | 19.5% | 13.0% | -76 | -3.5pp |
| 30 to 34 | 377 | 16.2% | 11.5% | 403 | 17.6% | 12.6% | -26 | -1.4pp |
| 35 to 39 | 252 | 10.8% | 9.8% | 232 | 10.1% | 9.0% | +20 | +0.7pp |
| 40 to 44 | 142 | 6.1% | 7.5% | 143 | 6.2% | 7.2% | -1 | -0.1pp |
| 45 to 49 | 125 | 5.4% | 6.5% | 125 | 5.4% | 6.7% | 0 | 0.0pp |
| 50 to 54 | 134 | 5.8% | 6.3% | 111 | 4.8% | 5.9% | +23 | +1.0pp |
| 55 to 59 | 102 | 4.4% | 5.7% | 122 | 5.3% | 5.4% | -20 | -0.9pp |
| 60 to 64 | 123 | 5.3% | 4.9% | 105 | 4.6% | 4.3% | +18 | +0.7pp |
| 65 to 69 | 79 | 3.4% | 3.8% | 80 | 3.5% | 3.5% | -1 | -0.1pp |
| 70 to 74 | 81 | 3.5% | 3.0% | 48 | 2.1% | 2.1% | +33 | +1.4pp |
| 75 to 79 | 40 | 1.7% | 1.8% | 43 | 1.9% | 1.8% | -3 | -0.2pp |
| 80 to 84 | 32 | 1.4% | 1.4% | 18 | 0.8% | 1.4% | +14 | +0.6pp |
| 85 and over | 20 | 0.9% | 1.8% | 24 | 1.0% | 2.0% | -4 | -0.1pp |
| Total | 2,326 | 100.0% | 100.0% | 2,293 | 100.0% | 100.0% | +33 | 0.0pp |