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 No usual address (ACT), accounting for 25.3% (153 people). This share was higher than Australian Capital Territory (21.7%). Since 2016, the biggest change was in Older workers and pre-retirees (50 to 59), which decreased by 16 people and 4.3 percentage points.
Section overview
Age structure - Service age groups
No usual address (ACT) - Total persons (Usual residence)
This table summarises service age groups for No usual address (ACT) in 2021 for persons, with comparison against Australian Capital Territory and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for No usual address (ACT), with comparison markers for Australian Capital Territory.
Babies and pre-schoolers (0 to 4)
2021 count
25
% of total
4.1%
Change from 2016
+1.9pp
25
4.1%
+1.9pp
Primary schoolers (5 to 11)
2021 count
13
% of total
2.1%
Change from 2016
-3.1pp
13
2.1%
-3.1pp
Secondary schoolers (12 to 17)
2021 count
29
% of total
4.8%
Change from 2016
+1.3pp
29
4.8%
+1.3pp
Tertiary education and independence (18 to 24)
2021 count
110
% of total
18.2%
Change from 2016
-0.6pp
110
18.2%
-0.6pp
Young workforce (25 to 34)
2021 count
106
% of total
17.5%
Change from 2016
-2.0pp
106
17.5%
-2.0pp
Parents and homebuilders (35 to 49)
2021 count
153
% of total
25.3%
Change from 2016
-1.3pp
153
25.3%
-1.3pp
Older workers and pre-retirees (50 to 59)
2021 count
66
% of total
10.9%
Change from 2016
-4.3pp
66
10.9%
-4.3pp
Empty nesters and retirees (60 to 69)
2021 count
69
% of total
11.4%
Change from 2016
+1.4pp
69
11.4%
+1.4pp
Seniors (70 to 84)
2021 count
32
% of total
5.3%
Change from 2016
+2.0pp
32
5.3%
+2.0pp
Elderly aged (85 and over)
2021 count
4
% of total
0.7%
Change from 2016
+0.1pp
4
0.7%
+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)
+13
+1.9pp
Primary schoolers (5 to 11)
-15
-3.1pp
Secondary schoolers (12 to 17)
+10
+1.3pp
Tertiary education and independence (18 to 24)
+9
-0.6pp
Young workforce (25 to 34)
+1
-2.0pp
Parents and homebuilders (35 to 49)
+10
-1.3pp
Older workers and pre-retirees (50 to 59)
-16
-4.3pp
Empty nesters and retirees (60 to 69)
+15
+1.4pp
Seniors (70 to 84)
+14
+2.0pp
Elderly aged (85 and over)
+1
+0.1pp
Data table
Service age groups for No usual address (ACT). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Australian Capital Territory.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Australian Capital Territory% | Count | % | Australian Capital Territory% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 25 | 4.1% | 5.9% | 12 | 2.2% | 6.7% | +13 | +1.9pp |
| Primary schoolers (5 to 11) | 13 | 2.1% | 8.9% | 28 | 5.2% | 8.8% | -15 | -3.1pp |
| Secondary schoolers (12 to 17) | 29 | 4.8% | 6.7% | 19 | 3.5% | 6.6% | +10 | +1.3pp |
| Tertiary education and independence (18 to 24) | 110 | 18.2% | 10.1% | 101 | 18.8% | 10.7% | +9 | -0.6pp |
| Young workforce (25 to 34) | 106 | 17.5% | 17.1% | 105 | 19.5% | 16.6% | +1 | -2.0pp |
| Parents and homebuilders (35 to 49) | 153 | 25.3% | 21.7% | 143 | 26.6% | 21.4% | +10 | -1.3pp |
| Older workers and pre-retirees (50 to 59) | 66 | 10.9% | 11.2% | 82 | 15.2% | 11.8% | -16 | -4.3pp |
| Empty nesters and retirees (60 to 69) | 69 | 11.4% | 8.8% | 54 | 10.0% | 9.2% | +15 | +1.4pp |
| Seniors (70 to 84) | 32 | 5.3% | 8.0% | 18 | 3.3% | 6.7% | +14 | +2.0pp |
| Elderly aged (85 and over) | 4 | 0.7% | 1.6% | 3 | 0.6% | 1.5% | +1 | +0.1pp |
| Total | 605 | 100.0% | 100.0% | 538 | 100.0% | 100.0% | +67 | 0.0pp |