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 Collarenebri (part), accounting for 17.7% (112 people). This share was higher than Walgett (A) (15.2%). Since 2016, the biggest change was in Tertiary education and independence (18 to 24), which increased by 21 people and 3.5 percentage points.
Section overview
Age structure - Service age groups
Collarenebri (part) - Total persons (Usual residence)
This table summarises service age groups for Collarenebri (part) in 2021 for persons, with comparison against Walgett (A) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Collarenebri (part), with comparison markers for Walgett (A).
Babies and pre-schoolers (0 to 4)
2021 count
40
% of total
6.3%
Change from 2016
-2.9pp
40
6.3%
-2.9pp
Primary schoolers (5 to 11)
2021 count
69
% of total
10.9%
Change from 2016
-0.6pp
69
10.9%
-0.6pp
Secondary schoolers (12 to 17)
2021 count
47
% of total
7.4%
Change from 2016
+0.8pp
47
7.4%
+0.8pp
Tertiary education and independence (18 to 24)
2021 count
59
% of total
9.3%
Change from 2016
+3.5pp
59
9.3%
+3.5pp
Young workforce (25 to 34)
2021 count
82
% of total
12.9%
Change from 2016
-0.9pp
82
12.9%
-0.9pp
Parents and homebuilders (35 to 49)
2021 count
112
% of total
17.7%
Change from 2016
+0.5pp
112
17.7%
+0.5pp
Older workers and pre-retirees (50 to 59)
2021 count
70
% of total
11.0%
Change from 2016
-1.5pp
70
11.0%
-1.5pp
Empty nesters and retirees (60 to 69)
2021 count
100
% of total
15.8%
Change from 2016
+0.3pp
100
15.8%
+0.3pp
Seniors (70 to 84)
2021 count
64
% of total
10.1%
Change from 2016
-0.7pp
64
10.1%
-0.7pp
Elderly aged (85 and over)
2021 count
9
% of total
1.4%
Change from 2016
-0.4pp
9
1.4%
-0.4pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-20
-2.9pp
Primary schoolers (5 to 11)
-6
-0.6pp
Secondary schoolers (12 to 17)
+4
+0.8pp
Tertiary education and independence (18 to 24)
+21
+3.5pp
Young workforce (25 to 34)
-8
-0.9pp
Parents and homebuilders (35 to 49)
0
+0.5pp
Older workers and pre-retirees (50 to 59)
-11
-1.5pp
Empty nesters and retirees (60 to 69)
-1
+0.3pp
Seniors (70 to 84)
-6
-0.7pp
Elderly aged (85 and over)
-3
-0.4pp
Data table
Service age groups for Collarenebri (part). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Walgett (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Walgett (A)% | Count | % | Walgett (A)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 40 | 6.3% | 6.1% | 60 | 9.2% | 6.7% | -20 | -2.9pp |
| Primary schoolers (5 to 11) | 69 | 10.9% | 9.3% | 75 | 11.5% | 10.6% | -6 | -0.6pp |
| Secondary schoolers (12 to 17) | 47 | 7.4% | 6.4% | 43 | 6.6% | 5.7% | +4 | +0.8pp |
| Tertiary education and independence (18 to 24) | 59 | 9.3% | 6.2% | 38 | 5.8% | 6.8% | +21 | +3.5pp |
| Young workforce (25 to 34) | 82 | 12.9% | 12.2% | 90 | 13.8% | 12.0% | -8 | -0.9pp |
| Parents and homebuilders (35 to 49) | 112 | 17.7% | 15.2% | 112 | 17.2% | 17.0% | 0 | +0.5pp |
| Older workers and pre-retirees (50 to 59) | 70 | 11.0% | 14.1% | 81 | 12.5% | 15.3% | -11 | -1.5pp |
| Empty nesters and retirees (60 to 69) | 100 | 15.8% | 16.4% | 101 | 15.5% | 13.5% | -1 | +0.3pp |
| Seniors (70 to 84) | 64 | 10.1% | 12.8% | 70 | 10.8% | 11.1% | -6 | -0.7pp |
| Elderly aged (85 and over) | 9 | 1.4% | 1.6% | 12 | 1.8% | 1.2% | -3 | -0.4pp |
| Total | 634 | 100.0% | 100.0% | 650 | 100.0% | 100.0% | -16 | 0.0pp |