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 Horsley Park, accounting for 17.4% (312 people). This share was lower than Fairfield (C) (18.4%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which decreased by 65 people and 3.1 percentage points.
Section overview
Age structure - Service age groups
Horsley Park - Total persons (Usual residence)
This table summarises service age groups for Horsley Park in 2021 for persons, with comparison against Fairfield (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Horsley Park, with comparison markers for Fairfield (C).
Babies and pre-schoolers (0 to 4)
2021 count
88
% of total
4.9%
Change from 2016
-0.5pp
88
4.9%
-0.5pp
Primary schoolers (5 to 11)
2021 count
147
% of total
8.2%
Change from 2016
+0.1pp
147
8.2%
+0.1pp
Secondary schoolers (12 to 17)
2021 count
113
% of total
6.3%
Change from 2016
-1.5pp
113
6.3%
-1.5pp
Tertiary education and independence (18 to 24)
2021 count
175
% of total
9.8%
Change from 2016
+0.7pp
175
9.8%
+0.7pp
Young workforce (25 to 34)
2021 count
186
% of total
10.4%
Change from 2016
-0.7pp
186
10.4%
-0.7pp
Parents and homebuilders (35 to 49)
2021 count
312
% of total
17.4%
Change from 2016
-3.1pp
312
17.4%
-3.1pp
Older workers and pre-retirees (50 to 59)
2021 count
263
% of total
14.7%
Change from 2016
+1.9pp
263
14.7%
+1.9pp
Empty nesters and retirees (60 to 69)
2021 count
207
% of total
11.6%
Change from 2016
+0.2pp
207
11.6%
+0.2pp
Seniors (70 to 84)
2021 count
258
% of total
14.4%
Change from 2016
+1.6pp
258
14.4%
+1.6pp
Elderly aged (85 and over)
2021 count
37
% of total
2.1%
Change from 2016
+0.3pp
37
2.1%
+0.3pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-11
-0.5pp
Primary schoolers (5 to 11)
-1
+0.1pp
Secondary schoolers (12 to 17)
-31
-1.5pp
Tertiary education and independence (18 to 24)
+8
+0.7pp
Young workforce (25 to 34)
-18
-0.7pp
Parents and homebuilders (35 to 49)
-65
-3.1pp
Older workers and pre-retirees (50 to 59)
+27
+1.9pp
Empty nesters and retirees (60 to 69)
-2
+0.2pp
Seniors (70 to 84)
+23
+1.6pp
Elderly aged (85 and over)
+4
+0.3pp
Data table
Service age groups for Horsley Park. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Fairfield (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Fairfield (C)% | Count | % | Fairfield (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 88 | 4.9% | 5.2% | 99 | 5.4% | 6.1% | -11 | -0.5pp |
| Primary schoolers (5 to 11) | 147 | 8.2% | 8.6% | 148 | 8.1% | 9.0% | -1 | +0.1pp |
| Secondary schoolers (12 to 17) | 113 | 6.3% | 8.2% | 144 | 7.8% | 8.2% | -31 | -1.5pp |
| Tertiary education and independence (18 to 24) | 175 | 9.8% | 9.9% | 167 | 9.1% | 10.7% | +8 | +0.7pp |
| Young workforce (25 to 34) | 186 | 10.4% | 13.0% | 204 | 11.1% | 13.6% | -18 | -0.7pp |
| Parents and homebuilders (35 to 49) | 312 | 17.4% | 18.4% | 377 | 20.5% | 19.3% | -65 | -3.1pp |
| Older workers and pre-retirees (50 to 59) | 263 | 14.7% | 13.4% | 236 | 12.8% | 13.6% | +27 | +1.9pp |
| Empty nesters and retirees (60 to 69) | 207 | 11.6% | 12.1% | 209 | 11.4% | 10.3% | -2 | +0.2pp |
| Seniors (70 to 84) | 258 | 14.4% | 9.2% | 235 | 12.8% | 7.4% | +23 | +1.6pp |
| Elderly aged (85 and over) | 37 | 2.1% | 2.1% | 33 | 1.8% | 1.8% | +4 | +0.3pp |
| Total | 1,790 | 100.0% | 100.0% | 1,837 | 100.0% | 100.0% | -47 | 0.0pp |