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, 35 to 39 year olds was the largest age group among residents in Wentworthville (part), accounting for 12.2% (1,841 people). This share was higher than Cumberland (A) (8.5%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 815 people and 3.1 percentage points.
Section overview
Age structure - Five year age groups
Wentworthville (part) - Total persons (Usual residence)
This table summarises five year age groups for Wentworthville (part) in 2021 for persons, with comparison against Cumberland (A) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Wentworthville (part), with comparison markers for Cumberland (A).
0 to 4
2021 count
1,168
% of total
7.7%
Change from 2016
-0.4pp
1,168
7.7%
-0.4pp
5 to 9
2021 count
1,051
% of total
7.0%
Change from 2016
+0.4pp
1,051
7.0%
+0.4pp
10 to 14
2021 count
742
% of total
4.9%
Change from 2016
-0.1pp
742
4.9%
-0.1pp
15 to 19
2021 count
598
% of total
4.0%
Change from 2016
-1.1pp
598
4.0%
-1.1pp
20 to 24
2021 count
1,022
% of total
6.8%
Change from 2016
-0.3pp
1,022
6.8%
-0.3pp
25 to 29
2021 count
1,659
% of total
11.0%
Change from 2016
+2.4pp
1,659
11.0%
+2.4pp
30 to 34
2021 count
1,795
% of total
11.9%
Change from 2016
+0.3pp
1,795
11.9%
+0.3pp
35 to 39
2021 count
1,841
% of total
12.2%
Change from 2016
+3.1pp
1,841
12.2%
+3.1pp
40 to 44
2021 count
1,062
% of total
7.0%
Change from 2016
+0.4pp
1,062
7.0%
+0.4pp
45 to 49
2021 count
760
% of total
5.0%
Change from 2016
-0.6pp
760
5.0%
-0.6pp
50 to 54
2021 count
664
% of total
4.4%
Change from 2016
-1.4pp
664
4.4%
-1.4pp
55 to 59
2021 count
691
% of total
4.6%
Change from 2016
-1.1pp
691
4.6%
-1.1pp
60 to 64
2021 count
645
% of total
4.3%
Change from 2016
-0.1pp
645
4.3%
-0.1pp
65 to 69
2021 count
475
% of total
3.1%
Change from 2016
-0.4pp
475
3.1%
-0.4pp
70 to 74
2021 count
375
% of total
2.5%
Change from 2016
+0.2pp
375
2.5%
+0.2pp
75 to 79
2021 count
221
% of total
1.5%
Change from 2016
-0.7pp
221
1.5%
-0.7pp
80 to 84
2021 count
179
% of total
1.2%
Change from 2016
-0.3pp
179
1.2%
-0.3pp
85 and over
2021 count
178
% of total
1.2%
Change from 2016
-0.2pp
178
1.2%
-0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+253
-0.4pp
5 to 9
+309
+0.4pp
10 to 14
+179
-0.1pp
15 to 19
+24
-1.1pp
20 to 24
+218
-0.3pp
25 to 29
+690
+2.4pp
30 to 34
+485
+0.3pp
35 to 39
+815
+3.1pp
40 to 44
+313
+0.4pp
45 to 49
+131
-0.6pp
50 to 54
+6
-1.4pp
55 to 59
+50
-1.1pp
60 to 64
+151
-0.1pp
65 to 69
+84
-0.4pp
70 to 74
+116
+0.2pp
75 to 79
-30
-0.7pp
80 to 84
+12
-0.3pp
85 and over
+20
-0.2pp
Data table
Five year age groups for Wentworthville (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Cumberland (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Cumberland (A)% | Count | % | Cumberland (A)% | Count | pp | |
| 0 to 4 | 1,168 | 7.7% | 7.0% | 915 | 8.1% | 7.8% | +253 | -0.4pp |
| 5 to 9 | 1,051 | 7.0% | 6.8% | 742 | 6.6% | 7.0% | +309 | +0.4pp |
| 10 to 14 | 742 | 4.9% | 6.1% | 563 | 5.0% | 5.7% | +179 | -0.1pp |
| 15 to 19 | 598 | 4.0% | 5.4% | 574 | 5.1% | 5.8% | +24 | -1.1pp |
| 20 to 24 | 1,022 | 6.8% | 7.9% | 804 | 7.1% | 7.9% | +218 | -0.3pp |
| 25 to 29 | 1,659 | 11.0% | 9.3% | 969 | 8.6% | 9.9% | +690 | +2.4pp |
| 30 to 34 | 1,795 | 11.9% | 9.2% | 1,310 | 11.6% | 9.6% | +485 | +0.3pp |
| 35 to 39 | 1,841 | 12.2% | 8.5% | 1,026 | 9.1% | 7.8% | +815 | +3.1pp |
| 40 to 44 | 1,062 | 7.0% | 6.8% | 749 | 6.6% | 6.3% | +313 | +0.4pp |
| 45 to 49 | 760 | 5.0% | 5.6% | 629 | 5.6% | 5.8% | +131 | -0.6pp |
| 50 to 54 | 664 | 4.4% | 5.4% | 658 | 5.8% | 5.6% | +6 | -1.4pp |
| 55 to 59 | 691 | 4.6% | 5.2% | 641 | 5.7% | 5.2% | +50 | -1.1pp |
| 60 to 64 | 645 | 4.3% | 4.6% | 494 | 4.4% | 4.3% | +151 | -0.1pp |
| 65 to 69 | 475 | 3.1% | 3.8% | 391 | 3.5% | 3.6% | +84 | -0.4pp |
| 70 to 74 | 375 | 2.5% | 3.1% | 259 | 2.3% | 2.6% | +116 | +0.2pp |
| 75 to 79 | 221 | 1.5% | 2.2% | 251 | 2.2% | 2.0% | -30 | -0.7pp |
| 80 to 84 | 179 | 1.2% | 1.5% | 167 | 1.5% | 1.4% | +12 | -0.3pp |
| 85 and over | 178 | 1.2% | 1.5% | 158 | 1.4% | 1.5% | +20 | -0.2pp |
| Total | 15,098 | 100.0% | 100.0% | 11,318 | 100.0% | 100.0% | +3,780 | 0.0pp |