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 Narellan, accounting for 18.4% (619 people). This share was lower than Camden (A) (22.4%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 61 people and 1.8 percentage points.
Section overview
Age structure - Service age groups
Narellan - Total persons (Usual residence)
This table summarises service age groups for Narellan in 2021 for persons, with comparison against Camden (A) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Narellan, with comparison markers for Camden (A).
Babies and pre-schoolers (0 to 4)
2021 count
220
% of total
6.6%
Change from 2016
0.0pp
220
6.6%
0.0pp
Primary schoolers (5 to 11)
2021 count
353
% of total
10.5%
Change from 2016
+1.0pp
353
10.5%
+1.0pp
Secondary schoolers (12 to 17)
2021 count
247
% of total
7.4%
Change from 2016
+0.5pp
247
7.4%
+0.5pp
Tertiary education and independence (18 to 24)
2021 count
274
% of total
8.2%
Change from 2016
-1.7pp
274
8.2%
-1.7pp
Young workforce (25 to 34)
2021 count
514
% of total
15.3%
Change from 2016
+1.5pp
514
15.3%
+1.5pp
Parents and homebuilders (35 to 49)
2021 count
619
% of total
18.4%
Change from 2016
-1.4pp
619
18.4%
-1.4pp
Older workers and pre-retirees (50 to 59)
2021 count
392
% of total
11.7%
Change from 2016
-1.5pp
392
11.7%
-1.5pp
Empty nesters and retirees (60 to 69)
2021 count
384
% of total
11.4%
Change from 2016
+0.3pp
384
11.4%
+0.3pp
Seniors (70 to 84)
2021 count
309
% of total
9.2%
Change from 2016
+1.8pp
309
9.2%
+1.8pp
Elderly aged (85 and over)
2021 count
45
% of total
1.3%
Change from 2016
-0.2pp
45
1.3%
-0.2pp
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
0.0pp
Primary schoolers (5 to 11)
+34
+1.0pp
Secondary schoolers (12 to 17)
+16
+0.5pp
Tertiary education and independence (18 to 24)
-58
-1.7pp
Young workforce (25 to 34)
+52
+1.5pp
Parents and homebuilders (35 to 49)
-45
-1.4pp
Older workers and pre-retirees (50 to 59)
-49
-1.5pp
Empty nesters and retirees (60 to 69)
+13
+0.3pp
Seniors (70 to 84)
+61
+1.8pp
Elderly aged (85 and over)
-4
-0.2pp
Data table
Service age groups for Narellan. Age structure - Service 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 | |
| Babies and pre-schoolers (0 to 4) | 220 | 6.6% | 9.4% | 221 | 6.6% | 8.4% | -1 | 0.0pp |
| Primary schoolers (5 to 11) | 353 | 10.5% | 11.4% | 319 | 9.5% | 11.1% | +34 | +1.0pp |
| Secondary schoolers (12 to 17) | 247 | 7.4% | 8.3% | 231 | 6.9% | 8.6% | +16 | +0.5pp |
| Tertiary education and independence (18 to 24) | 274 | 8.2% | 8.3% | 332 | 9.9% | 8.9% | -58 | -1.7pp |
| Young workforce (25 to 34) | 514 | 15.3% | 16.3% | 462 | 13.8% | 15.2% | +52 | +1.5pp |
| Parents and homebuilders (35 to 49) | 619 | 18.4% | 22.4% | 664 | 19.8% | 22.0% | -45 | -1.4pp |
| Older workers and pre-retirees (50 to 59) | 392 | 11.7% | 10.0% | 441 | 13.2% | 10.9% | -49 | -1.5pp |
| Empty nesters and retirees (60 to 69) | 384 | 11.4% | 7.3% | 371 | 11.1% | 8.2% | +13 | +0.3pp |
| Seniors (70 to 84) | 309 | 9.2% | 5.6% | 248 | 7.4% | 5.5% | +61 | +1.8pp |
| Elderly aged (85 and over) | 45 | 1.3% | 1.0% | 49 | 1.5% | 1.2% | -4 | -0.2pp |
| Total | 3,358 | 100.0% | 100.0% | 3,347 | 100.0% | 100.0% | +11 | 0.0pp |