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 Brooklyn (Tas.), accounting for 18.7% (100 people). This share was higher than Burnie (C) (17.7%). Since 2016, the biggest change was in Tertiary education and independence (18 to 24), which decreased by 25 people and 4.2 percentage points.
Section overview
Age structure - Service age groups
Brooklyn (Tas.) - Total persons (Usual residence)
This table summarises service age groups for Brooklyn (Tas.) in 2021 for persons, with comparison against Burnie (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Brooklyn (Tas.), with comparison markers for Burnie (C).
Babies and pre-schoolers (0 to 4)
2021 count
35
% of total
6.6%
Change from 2016
+1.2pp
35
6.6%
+1.2pp
Primary schoolers (5 to 11)
2021 count
42
% of total
7.9%
Change from 2016
+2.5pp
42
7.9%
+2.5pp
Secondary schoolers (12 to 17)
2021 count
30
% of total
5.6%
Change from 2016
-1.5pp
30
5.6%
-1.5pp
Tertiary education and independence (18 to 24)
2021 count
46
% of total
8.6%
Change from 2016
-4.2pp
46
8.6%
-4.2pp
Young workforce (25 to 34)
2021 count
91
% of total
17.0%
Change from 2016
+3.1pp
91
17.0%
+3.1pp
Parents and homebuilders (35 to 49)
2021 count
100
% of total
18.7%
Change from 2016
-3.0pp
100
18.7%
-3.0pp
Older workers and pre-retirees (50 to 59)
2021 count
70
% of total
13.1%
Change from 2016
-1.0pp
70
13.1%
-1.0pp
Empty nesters and retirees (60 to 69)
2021 count
54
% of total
10.1%
Change from 2016
-2.2pp
54
10.1%
-2.2pp
Seniors (70 to 84)
2021 count
46
% of total
8.6%
Change from 2016
-1.7pp
46
8.6%
-1.7pp
Elderly aged (85 and over)
2021 count
14
% of total
2.6%
Change from 2016
+0.2pp
14
2.6%
+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)
+5
+1.2pp
Primary schoolers (5 to 11)
+12
+2.5pp
Secondary schoolers (12 to 17)
-9
-1.5pp
Tertiary education and independence (18 to 24)
-25
-4.2pp
Young workforce (25 to 34)
+14
+3.1pp
Parents and homebuilders (35 to 49)
-20
-3.0pp
Older workers and pre-retirees (50 to 59)
-8
-1.0pp
Empty nesters and retirees (60 to 69)
-14
-2.2pp
Seniors (70 to 84)
-11
-1.7pp
Elderly aged (85 and over)
+1
+0.2pp
Data table
Service age groups for Brooklyn (Tas.). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Burnie (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Burnie (C)% | Count | % | Burnie (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 35 | 6.6% | 5.6% | 30 | 5.4% | 6.0% | +5 | +1.2pp |
| Primary schoolers (5 to 11) | 42 | 7.9% | 8.5% | 30 | 5.4% | 8.6% | +12 | +2.5pp |
| Secondary schoolers (12 to 17) | 30 | 5.6% | 7.8% | 39 | 7.1% | 8.3% | -9 | -1.5pp |
| Tertiary education and independence (18 to 24) | 46 | 8.6% | 8.4% | 71 | 12.8% | 9.2% | -25 | -4.2pp |
| Young workforce (25 to 34) | 91 | 17.0% | 13.1% | 77 | 13.9% | 11.4% | +14 | +3.1pp |
| Parents and homebuilders (35 to 49) | 100 | 18.7% | 17.7% | 120 | 21.7% | 18.2% | -20 | -3.0pp |
| Older workers and pre-retirees (50 to 59) | 70 | 13.1% | 13.5% | 78 | 14.1% | 14.1% | -8 | -1.0pp |
| Empty nesters and retirees (60 to 69) | 54 | 10.1% | 11.8% | 68 | 12.3% | 11.9% | -14 | -2.2pp |
| Seniors (70 to 84) | 46 | 8.6% | 11.2% | 57 | 10.3% | 10.2% | -11 | -1.7pp |
| Elderly aged (85 and over) | 14 | 2.6% | 2.2% | 13 | 2.4% | 2.3% | +1 | +0.2pp |
| Total | 534 | 100.0% | 100.0% | 553 | 100.0% | 100.0% | -19 | 0.0pp |