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, 40 to 44 year olds was the largest age group among residents in Peakhurst, accounting for 6.6% (797 people). This share was higher than Georges River (A) (6.3%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 175 people and 0.6 percentage points.
Section overview
Age structure - Five year age groups
Peakhurst - Total persons (Usual residence)
This table summarises five year age groups for Peakhurst in 2021 for persons, with comparison against Georges River (A) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Peakhurst, with comparison markers for Georges River (A).
0 to 4
2021 count
688
% of total
5.7%
Change from 2016
-0.1pp
688
5.7%
-0.1pp
5 to 9
2021 count
765
% of total
6.3%
Change from 2016
-0.4pp
765
6.3%
-0.4pp
10 to 14
2021 count
744
% of total
6.2%
Change from 2016
+0.2pp
744
6.2%
+0.2pp
15 to 19
2021 count
722
% of total
6.0%
Change from 2016
-0.2pp
722
6.0%
-0.2pp
20 to 24
2021 count
680
% of total
5.6%
Change from 2016
-0.2pp
680
5.6%
-0.2pp
25 to 29
2021 count
664
% of total
5.5%
Change from 2016
+0.3pp
664
5.5%
+0.3pp
30 to 34
2021 count
794
% of total
6.6%
Change from 2016
+0.6pp
794
6.6%
+0.6pp
35 to 39
2021 count
791
% of total
6.5%
Change from 2016
+0.6pp
791
6.5%
+0.6pp
40 to 44
2021 count
797
% of total
6.6%
Change from 2016
0.0pp
797
6.6%
0.0pp
45 to 49
2021 count
789
% of total
6.5%
Change from 2016
+0.1pp
789
6.5%
+0.1pp
50 to 54
2021 count
734
% of total
6.1%
Change from 2016
0.0pp
734
6.1%
0.0pp
55 to 59
2021 count
718
% of total
5.9%
Change from 2016
0.0pp
718
5.9%
0.0pp
60 to 64
2021 count
701
% of total
5.8%
Change from 2016
+0.7pp
701
5.8%
+0.7pp
65 to 69
2021 count
570
% of total
4.7%
Change from 2016
-0.5pp
570
4.7%
-0.5pp
70 to 74
2021 count
555
% of total
4.6%
Change from 2016
+0.4pp
555
4.6%
+0.4pp
75 to 79
2021 count
463
% of total
3.8%
Change from 2016
+0.4pp
463
3.8%
+0.4pp
80 to 84
2021 count
345
% of total
2.9%
Change from 2016
-0.6pp
345
2.9%
-0.6pp
85 and over
2021 count
594
% of total
4.9%
Change from 2016
-1.0pp
594
4.9%
-1.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+80
-0.1pp
5 to 9
+63
-0.4pp
10 to 14
+116
+0.2pp
15 to 19
+72
-0.2pp
20 to 24
+73
-0.2pp
25 to 29
+119
+0.3pp
30 to 34
+171
+0.6pp
35 to 39
+175
+0.6pp
40 to 44
+113
0.0pp
45 to 49
+119
+0.1pp
50 to 54
+101
0.0pp
55 to 59
+97
0.0pp
60 to 64
+173
+0.7pp
65 to 69
+25
-0.5pp
70 to 74
+115
+0.4pp
75 to 79
+105
+0.4pp
80 to 84
-16
-0.6pp
85 and over
-23
-1.0pp
Data table
Five year age groups for Peakhurst. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Georges River (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Georges River (A)% | Count | % | Georges River (A)% | Count | pp | |
| 0 to 4 | 688 | 5.7% | 5.0% | 608 | 5.8% | 5.8% | +80 | -0.1pp |
| 5 to 9 | 765 | 6.3% | 5.5% | 702 | 6.7% | 5.6% | +63 | -0.4pp |
| 10 to 14 | 744 | 6.2% | 5.4% | 628 | 6.0% | 5.3% | +116 | +0.2pp |
| 15 to 19 | 722 | 6.0% | 5.3% | 650 | 6.2% | 6.1% | +72 | -0.2pp |
| 20 to 24 | 680 | 5.6% | 7.6% | 607 | 5.8% | 7.6% | +73 | -0.2pp |
| 25 to 29 | 664 | 5.5% | 8.0% | 545 | 5.2% | 8.7% | +119 | +0.3pp |
| 30 to 34 | 794 | 6.6% | 7.5% | 623 | 6.0% | 7.9% | +171 | +0.6pp |
| 35 to 39 | 791 | 6.5% | 7.2% | 616 | 5.9% | 6.6% | +175 | +0.6pp |
| 40 to 44 | 797 | 6.6% | 6.3% | 684 | 6.6% | 6.5% | +113 | 0.0pp |
| 45 to 49 | 789 | 6.5% | 6.3% | 670 | 6.4% | 6.5% | +119 | +0.1pp |
| 50 to 54 | 734 | 6.1% | 6.2% | 633 | 6.1% | 6.6% | +101 | 0.0pp |
| 55 to 59 | 718 | 5.9% | 6.3% | 621 | 5.9% | 6.1% | +97 | 0.0pp |
| 60 to 64 | 701 | 5.8% | 5.9% | 528 | 5.1% | 5.2% | +173 | +0.7pp |
| 65 to 69 | 570 | 4.7% | 4.9% | 545 | 5.2% | 4.5% | +25 | -0.5pp |
| 70 to 74 | 555 | 4.6% | 4.2% | 440 | 4.2% | 3.4% | +115 | +0.4pp |
| 75 to 79 | 463 | 3.8% | 3.1% | 358 | 3.4% | 2.7% | +105 | +0.4pp |
| 80 to 84 | 345 | 2.9% | 2.3% | 361 | 3.5% | 2.2% | -16 | -0.6pp |
| 85 and over | 594 | 4.9% | 2.8% | 617 | 5.9% | 2.6% | -23 | -1.0pp |
| Total | 12,079 | 100.0% | 100.0% | 10,438 | 100.0% | 100.0% | +1,641 | 0.0pp |