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 Leppington (part), accounting for 11.5% (1,084 people). This share was higher than Camden (A) (9%). Since 2016, the biggest change was in 30 to 34 year olds, which increased by 776 people and 2.9 percentage points.
Section overview
Age structure - Five year age groups
Leppington (part) - Total persons (Usual residence)
This table summarises five year age groups for Leppington (part) in 2021 for persons, with comparison against Camden (A) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Leppington (part), with comparison markers for Camden (A).
0 to 4
2021 count
1,048
% of total
11.1%
Change from 2016
+2.7pp
1,048
11.1%
+2.7pp
5 to 9
2021 count
763
% of total
8.1%
Change from 2016
+1.3pp
763
8.1%
+1.3pp
10 to 14
2021 count
597
% of total
6.3%
Change from 2016
+0.8pp
597
6.3%
+0.8pp
15 to 19
2021 count
450
% of total
4.8%
Change from 2016
-1.1pp
450
4.8%
-1.1pp
20 to 24
2021 count
478
% of total
5.1%
Change from 2016
-0.7pp
478
5.1%
-0.7pp
25 to 29
2021 count
764
% of total
8.1%
Change from 2016
-0.1pp
764
8.1%
-0.1pp
30 to 34
2021 count
1,084
% of total
11.5%
Change from 2016
+2.9pp
1,084
11.5%
+2.9pp
35 to 39
2021 count
928
% of total
9.8%
Change from 2016
+2.4pp
928
9.8%
+2.4pp
40 to 44
2021 count
690
% of total
7.3%
Change from 2016
+2.0pp
690
7.3%
+2.0pp
45 to 49
2021 count
479
% of total
5.1%
Change from 2016
-1.0pp
479
5.1%
-1.0pp
50 to 54
2021 count
389
% of total
4.1%
Change from 2016
-1.6pp
389
4.1%
-1.6pp
55 to 59
2021 count
374
% of total
4.0%
Change from 2016
-1.3pp
374
4.0%
-1.3pp
60 to 64
2021 count
330
% of total
3.5%
Change from 2016
-2.1pp
330
3.5%
-2.1pp
65 to 69
2021 count
290
% of total
3.1%
Change from 2016
-1.5pp
290
3.1%
-1.5pp
70 to 74
2021 count
327
% of total
3.5%
Change from 2016
-0.8pp
327
3.5%
-0.8pp
75 to 79
2021 count
233
% of total
2.5%
Change from 2016
-0.7pp
233
2.5%
-0.7pp
80 to 84
2021 count
123
% of total
1.3%
Change from 2016
-0.7pp
123
1.3%
-0.7pp
85 and over
2021 count
67
% of total
0.7%
Change from 2016
-0.6pp
67
0.7%
-0.6pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+748
+2.7pp
5 to 9
+521
+1.3pp
10 to 14
+399
+0.8pp
15 to 19
+239
-1.1pp
20 to 24
+271
-0.7pp
25 to 29
+472
-0.1pp
30 to 34
+776
+2.9pp
35 to 39
+665
+2.4pp
40 to 44
+502
+2.0pp
45 to 49
+261
-1.0pp
50 to 54
+185
-1.6pp
55 to 59
+184
-1.3pp
60 to 64
+130
-2.1pp
65 to 69
+126
-1.5pp
70 to 74
+174
-0.8pp
75 to 79
+119
-0.7pp
80 to 84
+52
-0.7pp
85 and over
+21
-0.6pp
Data table
Five year age groups for Leppington (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Camden (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Camden (A)% | Count | % | Camden (A)% | Count | pp | |
| 0 to 4 | 1,048 | 11.1% | 9.4% | 300 | 8.4% | 8.4% | +748 | +2.7pp |
| 5 to 9 | 763 | 8.1% | 8.4% | 242 | 6.8% | 8.1% | +521 | +1.3pp |
| 10 to 14 | 597 | 6.3% | 7.4% | 198 | 5.5% | 7.4% | +399 | +0.8pp |
| 15 to 19 | 450 | 4.8% | 6.3% | 211 | 5.9% | 6.9% | +239 | -1.1pp |
| 20 to 24 | 478 | 5.1% | 5.9% | 207 | 5.8% | 6.2% | +271 | -0.7pp |
| 25 to 29 | 764 | 8.1% | 7.3% | 292 | 8.2% | 7.3% | +472 | -0.1pp |
| 30 to 34 | 1,084 | 11.5% | 9.0% | 308 | 8.6% | 7.9% | +776 | +2.9pp |
| 35 to 39 | 928 | 9.8% | 8.7% | 263 | 7.4% | 7.5% | +665 | +2.4pp |
| 40 to 44 | 690 | 7.3% | 7.1% | 188 | 5.3% | 7.8% | +502 | +2.0pp |
| 45 to 49 | 479 | 5.1% | 6.6% | 218 | 6.1% | 6.7% | +261 | -1.0pp |
| 50 to 54 | 389 | 4.1% | 5.4% | 204 | 5.7% | 5.9% | +185 | -1.6pp |
| 55 to 59 | 374 | 4.0% | 4.6% | 190 | 5.3% | 5.1% | +184 | -1.3pp |
| 60 to 64 | 330 | 3.5% | 4.0% | 200 | 5.6% | 4.4% | +130 | -2.1pp |
| 65 to 69 | 290 | 3.1% | 3.3% | 164 | 4.6% | 3.8% | +126 | -1.5pp |
| 70 to 74 | 327 | 3.5% | 2.8% | 153 | 4.3% | 2.6% | +174 | -0.8pp |
| 75 to 79 | 233 | 2.5% | 1.8% | 114 | 3.2% | 1.7% | +119 | -0.7pp |
| 80 to 84 | 123 | 1.3% | 1.1% | 71 | 2.0% | 1.2% | +52 | -0.7pp |
| 85 and over | 67 | 0.7% | 1.0% | 46 | 1.3% | 1.2% | +21 | -0.6pp |
| Total | 9,423 | 100.0% | 100.0% | 3,574 | 100.0% | 100.0% | +5,849 | 0.0pp |