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 South Penrith, accounting for 7.4% (893 people). This share was lower than Penrith (C) (7.8%). Since 2016, the biggest change was in 65 to 69 year olds, which decreased by 188 people and 1.6 percentage points.
Section overview
Age structure - Five year age groups
South Penrith - Total persons (Usual residence)
This table summarises five year age groups for South Penrith in 2021 for persons, with comparison against Penrith (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for South Penrith, with comparison markers for Penrith (C).
0 to 4
2021 count
769
% of total
6.4%
Change from 2016
-0.8pp
769
6.4%
-0.8pp
5 to 9
2021 count
829
% of total
6.9%
Change from 2016
-0.3pp
829
6.9%
-0.3pp
10 to 14
2021 count
878
% of total
7.3%
Change from 2016
+0.8pp
878
7.3%
+0.8pp
15 to 19
2021 count
800
% of total
6.7%
Change from 2016
+0.8pp
800
6.7%
+0.8pp
20 to 24
2021 count
742
% of total
6.2%
Change from 2016
+0.4pp
742
6.2%
+0.4pp
25 to 29
2021 count
792
% of total
6.6%
Change from 2016
+0.3pp
792
6.6%
+0.3pp
30 to 34
2021 count
780
% of total
6.5%
Change from 2016
-0.8pp
780
6.5%
-0.8pp
35 to 39
2021 count
893
% of total
7.4%
Change from 2016
-0.4pp
893
7.4%
-0.4pp
40 to 44
2021 count
873
% of total
7.3%
Change from 2016
+0.6pp
873
7.3%
+0.6pp
45 to 49
2021 count
739
% of total
6.2%
Change from 2016
+0.2pp
739
6.2%
+0.2pp
50 to 54
2021 count
668
% of total
5.6%
Change from 2016
+0.1pp
668
5.6%
+0.1pp
55 to 59
2021 count
616
% of total
5.1%
Change from 2016
-0.8pp
616
5.1%
-0.8pp
60 to 64
2021 count
612
% of total
5.1%
Change from 2016
-0.9pp
612
5.1%
-0.9pp
65 to 69
2021 count
595
% of total
5.0%
Change from 2016
-1.6pp
595
5.0%
-1.6pp
70 to 74
2021 count
638
% of total
5.3%
Change from 2016
+1.1pp
638
5.3%
+1.1pp
75 to 79
2021 count
390
% of total
3.2%
Change from 2016
+0.5pp
390
3.2%
+0.5pp
80 to 84
2021 count
235
% of total
2.0%
Change from 2016
+0.6pp
235
2.0%
+0.6pp
85 and over
2021 count
146
% of total
1.2%
Change from 2016
+0.2pp
146
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
-76
-0.8pp
5 to 9
-23
-0.3pp
10 to 14
+106
+0.8pp
15 to 19
+104
+0.8pp
20 to 24
+62
+0.4pp
25 to 29
+50
+0.3pp
30 to 34
-82
-0.8pp
35 to 39
-23
-0.4pp
40 to 44
+79
+0.6pp
45 to 49
+34
+0.2pp
50 to 54
+17
+0.1pp
55 to 59
-76
-0.8pp
60 to 64
-92
-0.9pp
65 to 69
-188
-1.6pp
70 to 74
+148
+1.1pp
75 to 79
+77
+0.5pp
80 to 84
+71
+0.6pp
85 and over
+28
+0.2pp
Data table
Five year age groups for South Penrith. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Penrith (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Penrith (C)% | Count | % | Penrith (C)% | Count | pp | |
| 0 to 4 | 769 | 6.4% | 7.2% | 845 | 7.2% | 7.4% | -76 | -0.8pp |
| 5 to 9 | 829 | 6.9% | 7.2% | 852 | 7.2% | 7.2% | -23 | -0.3pp |
| 10 to 14 | 878 | 7.3% | 6.8% | 772 | 6.5% | 6.5% | +106 | +0.8pp |
| 15 to 19 | 800 | 6.7% | 6.2% | 696 | 5.9% | 6.6% | +104 | +0.8pp |
| 20 to 24 | 742 | 6.2% | 6.8% | 680 | 5.8% | 7.2% | +62 | +0.4pp |
| 25 to 29 | 792 | 6.6% | 7.4% | 742 | 6.3% | 7.7% | +50 | +0.3pp |
| 30 to 34 | 780 | 6.5% | 7.7% | 862 | 7.3% | 7.8% | -82 | -0.8pp |
| 35 to 39 | 893 | 7.4% | 7.8% | 916 | 7.8% | 7.1% | -23 | -0.4pp |
| 40 to 44 | 873 | 7.3% | 6.8% | 794 | 6.7% | 6.9% | +79 | +0.6pp |
| 45 to 49 | 739 | 6.2% | 6.4% | 705 | 6.0% | 6.4% | +34 | +0.2pp |
| 50 to 54 | 668 | 5.6% | 5.9% | 651 | 5.5% | 6.2% | +17 | +0.1pp |
| 55 to 59 | 616 | 5.1% | 5.5% | 692 | 5.9% | 6.1% | -76 | -0.8pp |
| 60 to 64 | 612 | 5.1% | 5.2% | 704 | 6.0% | 5.2% | -92 | -0.9pp |
| 65 to 69 | 595 | 5.0% | 4.3% | 783 | 6.6% | 4.5% | -188 | -1.6pp |
| 70 to 74 | 638 | 5.3% | 3.7% | 490 | 4.2% | 2.9% | +148 | +1.1pp |
| 75 to 79 | 390 | 3.2% | 2.3% | 313 | 2.7% | 1.9% | +77 | +0.5pp |
| 80 to 84 | 235 | 2.0% | 1.4% | 164 | 1.4% | 1.2% | +71 | +0.6pp |
| 85 and over | 146 | 1.2% | 1.2% | 118 | 1.0% | 1.2% | +28 | +0.2pp |
| Total | 12,005 | 100.0% | 100.0% | 11,790 | 100.0% | 100.0% | +215 | 0.0pp |