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, Seniors (70 to 84) was the most common category among residents in Avoca (Vic.), accounting for 19% (257 people). This share was higher than Pyrenees (S) (15.9%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 68 people and 3.2 percentage points.
Section overview
Age structure - Service age groups
Avoca (Vic.) - Total persons (Usual residence)
This table summarises service age groups for Avoca (Vic.) in 2021 for persons, with comparison against Pyrenees (S) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Avoca (Vic.), with comparison markers for Pyrenees (S).
Babies and pre-schoolers (0 to 4)
2021 count
68
% of total
5.0%
Change from 2016
+0.2pp
68
5.0%
+0.2pp
Primary schoolers (5 to 11)
2021 count
98
% of total
7.2%
Change from 2016
-1.9pp
98
7.2%
-1.9pp
Secondary schoolers (12 to 17)
2021 count
99
% of total
7.3%
Change from 2016
+0.9pp
99
7.3%
+0.9pp
Tertiary education and independence (18 to 24)
2021 count
69
% of total
5.1%
Change from 2016
+0.3pp
69
5.1%
+0.3pp
Young workforce (25 to 34)
2021 count
118
% of total
8.7%
Change from 2016
+1.3pp
118
8.7%
+1.3pp
Parents and homebuilders (35 to 49)
2021 count
213
% of total
15.7%
Change from 2016
+0.4pp
213
15.7%
+0.4pp
Older workers and pre-retirees (50 to 59)
2021 count
172
% of total
12.7%
Change from 2016
+1.2pp
172
12.7%
+1.2pp
Empty nesters and retirees (60 to 69)
2021 count
228
% of total
16.8%
Change from 2016
-4.7pp
228
16.8%
-4.7pp
Seniors (70 to 84)
2021 count
257
% of total
19.0%
Change from 2016
+3.2pp
257
19.0%
+3.2pp
Elderly aged (85 and over)
2021 count
56
% of total
4.1%
Change from 2016
+1.6pp
56
4.1%
+1.6pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+11
+0.2pp
Primary schoolers (5 to 11)
-11
-1.9pp
Secondary schoolers (12 to 17)
+23
+0.9pp
Tertiary education and independence (18 to 24)
+12
+0.3pp
Young workforce (25 to 34)
+30
+1.3pp
Parents and homebuilders (35 to 49)
+30
+0.4pp
Older workers and pre-retirees (50 to 59)
+35
+1.2pp
Empty nesters and retirees (60 to 69)
-29
-4.7pp
Seniors (70 to 84)
+68
+3.2pp
Elderly aged (85 and over)
+26
+1.6pp
Data table
Service age groups for Avoca (Vic.). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Pyrenees (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Pyrenees (S)% | Count | % | Pyrenees (S)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 68 | 5.0% | 4.1% | 57 | 4.8% | 4.6% | +11 | +0.2pp |
| Primary schoolers (5 to 11) | 98 | 7.2% | 7.2% | 109 | 9.1% | 7.5% | -11 | -1.9pp |
| Secondary schoolers (12 to 17) | 99 | 7.3% | 6.7% | 76 | 6.4% | 6.3% | +23 | +0.9pp |
| Tertiary education and independence (18 to 24) | 69 | 5.1% | 5.6% | 57 | 4.8% | 5.1% | +12 | +0.3pp |
| Young workforce (25 to 34) | 118 | 8.7% | 8.6% | 88 | 7.4% | 7.7% | +30 | +1.3pp |
| Parents and homebuilders (35 to 49) | 213 | 15.7% | 16.8% | 183 | 15.3% | 17.9% | +30 | +0.4pp |
| Older workers and pre-retirees (50 to 59) | 172 | 12.7% | 15.6% | 137 | 11.5% | 16.2% | +35 | +1.2pp |
| Empty nesters and retirees (60 to 69) | 228 | 16.8% | 17.3% | 257 | 21.5% | 18.7% | -29 | -4.7pp |
| Seniors (70 to 84) | 257 | 19.0% | 15.9% | 189 | 15.8% | 13.3% | +68 | +3.2pp |
| Elderly aged (85 and over) | 56 | 4.1% | 2.5% | 30 | 2.5% | 2.4% | +26 | +1.6pp |
| Total | 1,356 | 100.0% | 100.0% | 1,193 | 100.0% | 100.0% | +163 | 0.0pp |