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 Para Hills, accounting for 19.9% (1,355 people). This share was lower than Salisbury (C) (20.1%). Since 2016, the biggest change was in Young workforce (25 to 34), which increased by 108 people and 1.1 percentage points.
Section overview
Age structure - Service age groups
Para Hills - Total persons (Usual residence)
This table summarises service age groups for Para Hills in 2021 for persons, with comparison against Salisbury (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Para Hills, with comparison markers for Salisbury (C).
Babies and pre-schoolers (0 to 4)
2021 count
423
% of total
6.2%
Change from 2016
-0.9pp
423
6.2%
-0.9pp
Primary schoolers (5 to 11)
2021 count
632
% of total
9.3%
Change from 2016
-0.2pp
632
9.3%
-0.2pp
Secondary schoolers (12 to 17)
2021 count
518
% of total
7.6%
Change from 2016
+0.5pp
518
7.6%
+0.5pp
Tertiary education and independence (18 to 24)
2021 count
591
% of total
8.7%
Change from 2016
-0.4pp
591
8.7%
-0.4pp
Young workforce (25 to 34)
2021 count
1,100
% of total
16.2%
Change from 2016
+1.1pp
1,100
16.2%
+1.1pp
Parents and homebuilders (35 to 49)
2021 count
1,355
% of total
19.9%
Change from 2016
+0.5pp
1,355
19.9%
+0.5pp
Older workers and pre-retirees (50 to 59)
2021 count
806
% of total
11.9%
Change from 2016
0.0pp
806
11.9%
0.0pp
Empty nesters and retirees (60 to 69)
2021 count
647
% of total
9.5%
Change from 2016
-0.4pp
647
9.5%
-0.4pp
Seniors (70 to 84)
2021 count
610
% of total
9.0%
Change from 2016
-0.5pp
610
9.0%
-0.5pp
Elderly aged (85 and over)
2021 count
114
% of total
1.7%
Change from 2016
+0.2pp
114
1.7%
+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)
-42
-0.9pp
Primary schoolers (5 to 11)
+12
-0.2pp
Secondary schoolers (12 to 17)
+52
+0.5pp
Tertiary education and independence (18 to 24)
-8
-0.4pp
Young workforce (25 to 34)
+108
+1.1pp
Parents and homebuilders (35 to 49)
+82
+0.5pp
Older workers and pre-retirees (50 to 59)
+26
0.0pp
Empty nesters and retirees (60 to 69)
-2
-0.4pp
Seniors (70 to 84)
-10
-0.5pp
Elderly aged (85 and over)
+13
+0.2pp
Data table
Service age groups for Para Hills. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Salisbury (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Salisbury (C)% | Count | % | Salisbury (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 423 | 6.2% | 6.3% | 465 | 7.1% | 6.9% | -42 | -0.9pp |
| Primary schoolers (5 to 11) | 632 | 9.3% | 9.3% | 620 | 9.5% | 9.2% | +12 | -0.2pp |
| Secondary schoolers (12 to 17) | 518 | 7.6% | 7.4% | 466 | 7.1% | 7.2% | +52 | +0.5pp |
| Tertiary education and independence (18 to 24) | 591 | 8.7% | 9.4% | 599 | 9.1% | 9.8% | -8 | -0.4pp |
| Young workforce (25 to 34) | 1,100 | 16.2% | 14.6% | 992 | 15.1% | 15.3% | +108 | +1.1pp |
| Parents and homebuilders (35 to 49) | 1,355 | 19.9% | 20.1% | 1,273 | 19.4% | 19.8% | +82 | +0.5pp |
| Older workers and pre-retirees (50 to 59) | 806 | 11.9% | 12.0% | 780 | 11.9% | 12.3% | +26 | 0.0pp |
| Empty nesters and retirees (60 to 69) | 647 | 9.5% | 10.0% | 649 | 9.9% | 9.9% | -2 | -0.4pp |
| Seniors (70 to 84) | 610 | 9.0% | 9.1% | 620 | 9.5% | 7.9% | -10 | -0.5pp |
| Elderly aged (85 and over) | 114 | 1.7% | 1.8% | 101 | 1.5% | 1.6% | +13 | +0.2pp |
| Total | 6,793 | 100.0% | 100.0% | 6,554 | 100.0% | 100.0% | +239 | 0.0pp |