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, Young workforce (25 to 34) was the most common category among residents in Brewarrina, accounting for 17.3% (161 people). This share was higher than Brewarrina (A) (14.7%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which decreased by 65 people and 3.2 percentage points.
Section overview
Age structure - Service age groups
Brewarrina - Total persons (Usual residence)
This table summarises service age groups for Brewarrina in 2021 for persons, with comparison against Brewarrina (A) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Brewarrina, with comparison markers for Brewarrina (A).
Babies and pre-schoolers (0 to 4)
2021 count
77
% of total
8.3%
Change from 2016
+0.1pp
77
8.3%
+0.1pp
Primary schoolers (5 to 11)
2021 count
90
% of total
9.7%
Change from 2016
-2.7pp
90
9.7%
-2.7pp
Secondary schoolers (12 to 17)
2021 count
76
% of total
8.2%
Change from 2016
+1.6pp
76
8.2%
+1.6pp
Tertiary education and independence (18 to 24)
2021 count
75
% of total
8.1%
Change from 2016
-3.4pp
75
8.1%
-3.4pp
Young workforce (25 to 34)
2021 count
161
% of total
17.3%
Change from 2016
+3.6pp
161
17.3%
+3.6pp
Parents and homebuilders (35 to 49)
2021 count
125
% of total
13.4%
Change from 2016
-3.2pp
125
13.4%
-3.2pp
Older workers and pre-retirees (50 to 59)
2021 count
149
% of total
16.0%
Change from 2016
-0.8pp
149
16.0%
-0.8pp
Empty nesters and retirees (60 to 69)
2021 count
96
% of total
10.3%
Change from 2016
+3.2pp
96
10.3%
+3.2pp
Seniors (70 to 84)
2021 count
50
% of total
5.4%
Change from 2016
+0.8pp
50
5.4%
+0.8pp
Elderly aged (85 and over)
2021 count
17
% of total
1.8%
Change from 2016
+0.1pp
17
1.8%
+0.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-17
+0.1pp
Primary schoolers (5 to 11)
-52
-2.7pp
Secondary schoolers (12 to 17)
0
+1.6pp
Tertiary education and independence (18 to 24)
-56
-3.4pp
Young workforce (25 to 34)
+4
+3.6pp
Parents and homebuilders (35 to 49)
-65
-3.2pp
Older workers and pre-retirees (50 to 59)
-43
-0.8pp
Empty nesters and retirees (60 to 69)
+15
+3.2pp
Seniors (70 to 84)
-3
+0.8pp
Elderly aged (85 and over)
-2
+0.1pp
Data table
Service age groups for Brewarrina. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Brewarrina (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Brewarrina (A)% | Count | % | Brewarrina (A)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 77 | 8.3% | 6.6% | 94 | 8.2% | 7.8% | -17 | +0.1pp |
| Primary schoolers (5 to 11) | 90 | 9.7% | 9.7% | 142 | 12.4% | 11.8% | -52 | -2.7pp |
| Secondary schoolers (12 to 17) | 76 | 8.2% | 8.3% | 76 | 6.6% | 6.8% | 0 | +1.6pp |
| Tertiary education and independence (18 to 24) | 75 | 8.1% | 7.1% | 131 | 11.5% | 10.1% | -56 | -3.4pp |
| Young workforce (25 to 34) | 161 | 17.3% | 14.7% | 157 | 13.7% | 13.6% | +4 | +3.6pp |
| Parents and homebuilders (35 to 49) | 125 | 13.4% | 14.3% | 190 | 16.6% | 16.9% | -65 | -3.2pp |
| Older workers and pre-retirees (50 to 59) | 149 | 16.0% | 15.6% | 192 | 16.8% | 15.5% | -43 | -0.8pp |
| Empty nesters and retirees (60 to 69) | 96 | 10.3% | 12.6% | 81 | 7.1% | 9.4% | +15 | +3.2pp |
| Seniors (70 to 84) | 50 | 5.4% | 7.6% | 53 | 4.6% | 5.5% | -3 | +0.8pp |
| Elderly aged (85 and over) | 17 | 1.8% | 1.4% | 19 | 1.7% | 1.2% | -2 | +0.1pp |
| Total | 931 | 100.0% | 100.0% | 1,143 | 100.0% | 100.0% | -212 | 0.0pp |