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 King Island (M), accounting for 17.7% (286 people). This share was higher than Regional Tas. (17%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 28 people and 1.4 percentage points.
Section overview
Age structure - Service age groups
King Island (M) - Total persons (Usual residence)
This table summarises service age groups for King Island (M) in 2021 for persons, with comparison against Regional Tas. and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for King Island (M), with comparison markers for Regional Tas..
Babies and pre-schoolers (0 to 4)
2021 count
91
% of total
5.6%
Change from 2016
+0.4pp
91
5.6%
+0.4pp
Primary schoolers (5 to 11)
2021 count
126
% of total
7.8%
Change from 2016
+0.6pp
126
7.8%
+0.6pp
Secondary schoolers (12 to 17)
2021 count
92
% of total
5.7%
Change from 2016
-0.2pp
92
5.7%
-0.2pp
Tertiary education and independence (18 to 24)
2021 count
72
% of total
4.5%
Change from 2016
-1.3pp
72
4.5%
-1.3pp
Young workforce (25 to 34)
2021 count
199
% of total
12.3%
Change from 2016
-0.8pp
199
12.3%
-0.8pp
Parents and homebuilders (35 to 49)
2021 count
286
% of total
17.7%
Change from 2016
+1.4pp
286
17.7%
+1.4pp
Older workers and pre-retirees (50 to 59)
2021 count
238
% of total
14.7%
Change from 2016
0.0pp
238
14.7%
0.0pp
Empty nesters and retirees (60 to 69)
2021 count
254
% of total
15.7%
Change from 2016
-1.4pp
254
15.7%
-1.4pp
Seniors (70 to 84)
2021 count
215
% of total
13.3%
Change from 2016
+0.9pp
215
13.3%
+0.9pp
Elderly aged (85 and over)
2021 count
41
% of total
2.5%
Change from 2016
-0.2pp
41
2.5%
-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)
+8
+0.4pp
Primary schoolers (5 to 11)
+12
+0.6pp
Secondary schoolers (12 to 17)
-1
-0.2pp
Tertiary education and independence (18 to 24)
-20
-1.3pp
Young workforce (25 to 34)
-9
-0.8pp
Parents and homebuilders (35 to 49)
+28
+1.4pp
Older workers and pre-retirees (50 to 59)
+5
0.0pp
Empty nesters and retirees (60 to 69)
-17
-1.4pp
Seniors (70 to 84)
+19
+0.9pp
Elderly aged (85 and over)
-2
-0.2pp
Data table
Service age groups for King Island (M). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Regional Tas..
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional Tas.% | Count | % | Regional Tas.% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 91 | 5.6% | 5.0% | 83 | 5.2% | 5.4% | +8 | +0.4pp |
| Primary schoolers (5 to 11) | 126 | 7.8% | 7.8% | 114 | 7.2% | 8.5% | +12 | +0.6pp |
| Secondary schoolers (12 to 17) | 92 | 5.7% | 7.1% | 93 | 5.9% | 7.3% | -1 | -0.2pp |
| Tertiary education and independence (18 to 24) | 72 | 4.5% | 7.2% | 92 | 5.8% | 7.8% | -20 | -1.3pp |
| Young workforce (25 to 34) | 199 | 12.3% | 11.9% | 208 | 13.1% | 10.2% | -9 | -0.8pp |
| Parents and homebuilders (35 to 49) | 286 | 17.7% | 17.0% | 258 | 16.3% | 18.1% | +28 | +1.4pp |
| Older workers and pre-retirees (50 to 59) | 238 | 14.7% | 13.9% | 233 | 14.7% | 14.8% | +5 | 0.0pp |
| Empty nesters and retirees (60 to 69) | 254 | 15.7% | 14.4% | 271 | 17.1% | 14.2% | -17 | -1.4pp |
| Seniors (70 to 84) | 215 | 13.3% | 13.4% | 196 | 12.4% | 11.3% | +19 | +0.9pp |
| Elderly aged (85 and over) | 41 | 2.5% | 2.4% | 43 | 2.7% | 2.3% | -2 | -0.2pp |
| Total | 1,617 | 100.0% | 100.0% | 1,585 | 100.0% | 100.0% | +32 | 0.0pp |