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 40 to 44 year olds, which increased by 797 people and 6.6 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
-2.4pp
688
5.7%
-2.4pp
5 to 9
2021 count
765
% of total
6.3%
Change from 2016
+2.8pp
765
6.3%
+2.8pp
10 to 14
2021 count
744
% of total
6.2%
Change from 2016
-0.8pp
744
6.2%
-0.8pp
15 to 19
2021 count
722
% of total
6.0%
Change from 2016
+2.5pp
722
6.0%
+2.5pp
20 to 24
2021 count
680
% of total
5.6%
Change from 2016
-9.5pp
680
5.6%
-9.5pp
25 to 29
2021 count
664
% of total
5.5%
Change from 2016
+5.5pp
664
5.5%
+5.5pp
30 to 34
2021 count
794
% of total
6.6%
Change from 2016
-1.5pp
794
6.6%
-1.5pp
35 to 39
2021 count
791
% of total
6.5%
Change from 2016
+3.0pp
791
6.5%
+3.0pp
40 to 44
2021 count
797
% of total
6.6%
Change from 2016
+6.6pp
797
6.6%
+6.6pp
45 to 49
2021 count
789
% of total
6.5%
Change from 2016
+3.0pp
789
6.5%
+3.0pp
50 to 54
2021 count
734
% of total
6.1%
Change from 2016
+6.1pp
734
6.1%
+6.1pp
55 to 59
2021 count
718
% of total
5.9%
Change from 2016
+5.9pp
718
5.9%
+5.9pp
60 to 64
2021 count
701
% of total
5.8%
Change from 2016
+2.3pp
701
5.8%
+2.3pp
65 to 69
2021 count
570
% of total
4.7%
Change from 2016
+1.2pp
570
4.7%
+1.2pp
70 to 74
2021 count
555
% of total
4.6%
Change from 2016
-2.4pp
555
4.6%
-2.4pp
75 to 79
2021 count
463
% of total
3.8%
Change from 2016
+3.8pp
463
3.8%
+3.8pp
80 to 84
2021 count
345
% of total
2.9%
Change from 2016
+2.9pp
345
2.9%
+2.9pp
85 and over
2021 count
594
% of total
4.9%
Change from 2016
+4.9pp
594
4.9%
+4.9pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+681
-2.4pp
5 to 9
+762
+2.8pp
10 to 14
+738
-0.8pp
15 to 19
+719
+2.5pp
20 to 24
+667
-9.5pp
25 to 29
+664
+5.5pp
30 to 34
+787
-1.5pp
35 to 39
+788
+3.0pp
40 to 44
+797
+6.6pp
45 to 49
+786
+3.0pp
50 to 54
+734
+6.1pp
55 to 59
+718
+5.9pp
60 to 64
+698
+2.3pp
65 to 69
+567
+1.2pp
70 to 74
+549
-2.4pp
75 to 79
+463
+3.8pp
80 to 84
+345
+2.9pp
85 and over
+594
+4.9pp
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% | 7 | 8.1% | 5.8% | +681 | -2.4pp |
| 5 to 9 | 765 | 6.3% | 5.5% | 3 | 3.5% | 5.6% | +762 | +2.8pp |
| 10 to 14 | 744 | 6.2% | 5.4% | 6 | 7.0% | 5.3% | +738 | -0.8pp |
| 15 to 19 | 722 | 6.0% | 5.3% | 3 | 3.5% | 6.1% | +719 | +2.5pp |
| 20 to 24 | 680 | 5.6% | 7.6% | 13 | 15.1% | 7.6% | +667 | -9.5pp |
| 25 to 29 | 664 | 5.5% | 8.0% | 0 | 0.0% | 8.7% | +664 | +5.5pp |
| 30 to 34 | 794 | 6.6% | 7.5% | 7 | 8.1% | 7.9% | +787 | -1.5pp |
| 35 to 39 | 791 | 6.5% | 7.2% | 3 | 3.5% | 6.6% | +788 | +3.0pp |
| 40 to 44 | 797 | 6.6% | 6.3% | 0 | 0.0% | 6.5% | +797 | +6.6pp |
| 45 to 49 | 789 | 6.5% | 6.3% | 3 | 3.5% | 6.5% | +786 | +3.0pp |
| 50 to 54 | 734 | 6.1% | 6.2% | 0 | 0.0% | 6.6% | +734 | +6.1pp |
| 55 to 59 | 718 | 5.9% | 6.3% | 0 | 0.0% | 6.1% | +718 | +5.9pp |
| 60 to 64 | 701 | 5.8% | 5.9% | 3 | 3.5% | 5.2% | +698 | +2.3pp |
| 65 to 69 | 570 | 4.7% | 4.9% | 3 | 3.5% | 4.5% | +567 | +1.2pp |
| 70 to 74 | 555 | 4.6% | 4.2% | 6 | 7.0% | 3.4% | +549 | -2.4pp |
| 75 to 79 | 463 | 3.8% | 3.1% | 0 | 0.0% | 2.7% | +463 | +3.8pp |
| 80 to 84 | 345 | 2.9% | 2.3% | 0 | 0.0% | 2.2% | +345 | +2.9pp |
| 85 and over | 594 | 4.9% | 2.8% | 0 | 0.0% | 2.6% | +594 | +4.9pp |
| Total | 12,079 | 100.0% | 100.0% | 86 | 100.0% | 100.0% | +11,993 | 0.0pp |