Population
Service age groups
About this topic
Service age groups divide the population into broad life-stage bands such as children, young adults, working-age adults, and older people. The groupings are designed to reflect typical demand for age-based services and facilities rather than exact five-year cohorts.
This view is useful for planning childcare, schools, recreation, aged services, and other community infrastructure. It works best alongside five year age groups, household type, and dwelling data, which add more detail about who is living in an area and how needs may change over time.
Interpretation notes
- This is a derived grouping rather than a direct Census question, so the age bands are planning-oriented summaries built from standard age data.
- Percentages relate to the total population; use five year age groups when exact cohort detail matters.
Related topics
Key insight
In 2021, Parents and homebuilders (35 to 49) was the most common category among residents in Campbelltown (C) (NSW), accounting for 21.1% (37,305 people). This share was lower than Greater Sydney (21.5%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 6,672 people and 1.6 percentage points.
Section overview
Age structure - Service age groups
Campbelltown (C) (NSW) - Total persons (Usual residence)
This table summarises service age groups for Campbelltown (C) (NSW) in 2021 for persons, with comparison against Greater Sydney and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Campbelltown (C) (NSW), with comparison markers for Greater Sydney.
Babies and pre-schoolers (0 to 4)
2021 count
13,108
% of total
7.4%
Change from 2016
0.0pp
13,108
7.4%
0.0pp
Primary schoolers (5 to 11)
2021 count
18,461
% of total
10.5%
Change from 2016
+0.4pp
18,461
10.5%
+0.4pp
Secondary schoolers (12 to 17)
2021 count
13,978
% of total
7.9%
Change from 2016
-0.2pp
13,978
7.9%
-0.2pp
Tertiary education and independence (18 to 24)
2021 count
15,529
% of total
8.8%
Change from 2016
-1.3pp
15,529
8.8%
-1.3pp
Young workforce (25 to 34)
2021 count
25,611
% of total
14.5%
Change from 2016
-0.3pp
25,611
14.5%
-0.3pp
Parents and homebuilders (35 to 49)
2021 count
37,305
% of total
21.1%
Change from 2016
+1.6pp
37,305
21.1%
+1.6pp
Older workers and pre-retirees (50 to 59)
2021 count
19,621
% of total
11.1%
Change from 2016
-1.6pp
19,621
11.1%
-1.6pp
Empty nesters and retirees (60 to 69)
2021 count
17,588
% of total
10.0%
Change from 2016
-0.2pp
17,588
10.0%
-0.2pp
Seniors (70 to 84)
2021 count
13,406
% of total
7.6%
Change from 2016
+1.5pp
13,406
7.6%
+1.5pp
Elderly aged (85 and over)
2021 count
1,946
% of total
1.1%
Change from 2016
0.0pp
1,946
1.1%
0.0pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+1,507
0.0pp
Primary schoolers (5 to 11)
+2,525
+0.4pp
Secondary schoolers (12 to 17)
+1,334
-0.2pp
Tertiary education and independence (18 to 24)
-257
-1.3pp
Young workforce (25 to 34)
+2,308
-0.3pp
Parents and homebuilders (35 to 49)
+6,672
+1.6pp
Older workers and pre-retirees (50 to 59)
-251
-1.6pp
Empty nesters and retirees (60 to 69)
+1,524
-0.2pp
Seniors (70 to 84)
+3,891
+1.5pp
Elderly aged (85 and over)
+286
0.0pp
Data table
Service age groups for Campbelltown (C) (NSW). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Greater Sydney.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Greater Sydney% | Count | % | Greater Sydney% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 13,108 | 7.4% | 6.0% | 11,601 | 7.4% | 6.4% | +1,507 | 0.0pp |
| Primary schoolers (5 to 11) | 18,461 | 10.5% | 8.8% | 15,936 | 10.1% | 8.8% | +2,525 | +0.4pp |
| Secondary schoolers (12 to 17) | 13,978 | 7.9% | 7.1% | 12,644 | 8.1% | 6.9% | +1,334 | -0.2pp |
| Tertiary education and independence (18 to 24) | 15,529 | 8.8% | 8.8% | 15,786 | 10.1% | 9.6% | -257 | -1.3pp |
| Young workforce (25 to 34) | 25,611 | 14.5% | 15.5% | 23,303 | 14.8% | 16.1% | +2,308 | -0.3pp |
| Parents and homebuilders (35 to 49) | 37,305 | 21.1% | 21.5% | 30,633 | 19.5% | 21.1% | +6,672 | +1.6pp |
| Older workers and pre-retirees (50 to 59) | 19,621 | 11.1% | 12.0% | 19,872 | 12.7% | 12.2% | -251 | -1.6pp |
| Empty nesters and retirees (60 to 69) | 17,588 | 10.0% | 9.8% | 16,064 | 10.2% | 9.5% | +1,524 | -0.2pp |
| Seniors (70 to 84) | 13,406 | 7.6% | 8.7% | 9,515 | 6.1% | 7.5% | +3,891 | +1.5pp |
| Elderly aged (85 and over) | 1,946 | 1.1% | 2.0% | 1,660 | 1.1% | 2.0% | +286 | 0.0pp |
| Total | 176,519 | 100.0% | 100.0% | 157,006 | 100.0% | 100.0% | +19,513 | 0.0pp |