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, Empty nesters and retirees (60 to 69) was the most common category among residents in Princetown, accounting for 19.1% (45 people). This share was higher than Corangamite (S) (15%). Since 2016, the biggest change was in Seniors (70 to 84), which decreased by 283 people and 17.7 percentage points.
Section overview
Age structure - Service age groups
Princetown - Total persons (Usual residence)
This table summarises service age groups for Princetown in 2021 for persons, with comparison against Corangamite (S) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Princetown, with comparison markers for Corangamite (S).
Babies and pre-schoolers (0 to 4)
2021 count
11
% of total
4.7%
Change from 2016
+2.0pp
11
4.7%
+2.0pp
Primary schoolers (5 to 11)
2021 count
20
% of total
8.5%
Change from 2016
+2.0pp
20
8.5%
+2.0pp
Secondary schoolers (12 to 17)
2021 count
15
% of total
6.4%
Change from 2016
+1.4pp
15
6.4%
+1.4pp
Tertiary education and independence (18 to 24)
2021 count
7
% of total
3.0%
Change from 2016
-2.2pp
7
3.0%
-2.2pp
Young workforce (25 to 34)
2021 count
39
% of total
16.5%
Change from 2016
+12.3pp
39
16.5%
+12.3pp
Parents and homebuilders (35 to 49)
2021 count
41
% of total
17.4%
Change from 2016
+5.5pp
41
17.4%
+5.5pp
Older workers and pre-retirees (50 to 59)
2021 count
30
% of total
12.7%
Change from 2016
-2.0pp
30
12.7%
-2.0pp
Empty nesters and retirees (60 to 69)
2021 count
45
% of total
19.1%
Change from 2016
-3.9pp
45
19.1%
-3.9pp
Seniors (70 to 84)
2021 count
11
% of total
4.7%
Change from 2016
-17.7pp
11
4.7%
-17.7pp
Elderly aged (85 and over)
2021 count
4
% of total
1.7%
Change from 2016
-2.6pp
4
1.7%
-2.6pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-24
+2.0pp
Primary schoolers (5 to 11)
-65
+2.0pp
Secondary schoolers (12 to 17)
-51
+1.4pp
Tertiary education and independence (18 to 24)
-62
-2.2pp
Young workforce (25 to 34)
-16
+12.3pp
Parents and homebuilders (35 to 49)
-115
+5.5pp
Older workers and pre-retirees (50 to 59)
-163
-2.0pp
Empty nesters and retirees (60 to 69)
-257
-3.9pp
Seniors (70 to 84)
-283
-17.7pp
Elderly aged (85 and over)
-52
-2.6pp
Data table
Service age groups for Princetown. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Corangamite (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Corangamite (S)% | Count | % | Corangamite (S)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 11 | 4.7% | 4.6% | 35 | 2.7% | 5.5% | -24 | +2.0pp |
| Primary schoolers (5 to 11) | 20 | 8.5% | 8.1% | 85 | 6.5% | 9.3% | -65 | +2.0pp |
| Secondary schoolers (12 to 17) | 15 | 6.4% | 7.7% | 66 | 5.0% | 7.5% | -51 | +1.4pp |
| Tertiary education and independence (18 to 24) | 7 | 3.0% | 6.7% | 69 | 5.2% | 7.1% | -62 | -2.2pp |
| Young workforce (25 to 34) | 39 | 16.5% | 9.8% | 55 | 4.2% | 8.5% | -16 | +12.3pp |
| Parents and homebuilders (35 to 49) | 41 | 17.4% | 15.6% | 156 | 11.9% | 17.0% | -115 | +5.5pp |
| Older workers and pre-retirees (50 to 59) | 30 | 12.7% | 14.7% | 193 | 14.7% | 15.4% | -163 | -2.0pp |
| Empty nesters and retirees (60 to 69) | 45 | 19.1% | 15.0% | 302 | 23.0% | 14.1% | -257 | -3.9pp |
| Seniors (70 to 84) | 11 | 4.7% | 14.5% | 294 | 22.4% | 12.8% | -283 | -17.7pp |
| Elderly aged (85 and over) | 4 | 1.7% | 3.2% | 56 | 4.3% | 2.9% | -52 | -2.6pp |
| Total | 236 | 100.0% | 100.0% | 1,315 | 100.0% | 100.0% | -1,079 | 0.0pp |