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 Rowsley, accounting for 18.2% (42 people). This share was lower than Moorabool (S) (20.2%). Since 2016, the biggest change was in Primary schoolers (5 to 11), which increased by 18 people and 6.6 percentage points.
Section overview
Age structure - Service age groups
Rowsley - Total persons (Usual residence)
This table summarises service age groups for Rowsley in 2021 for persons, with comparison against Moorabool (S) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Rowsley, with comparison markers for Moorabool (S).
Babies and pre-schoolers (0 to 4)
2021 count
20
% of total
8.7%
Change from 2016
+5.6pp
20
8.7%
+5.6pp
Primary schoolers (5 to 11)
2021 count
32
% of total
13.9%
Change from 2016
+6.6pp
32
13.9%
+6.6pp
Secondary schoolers (12 to 17)
2021 count
17
% of total
7.4%
Change from 2016
+3.2pp
17
7.4%
+3.2pp
Tertiary education and independence (18 to 24)
2021 count
12
% of total
5.2%
Change from 2016
-1.6pp
12
5.2%
-1.6pp
Young workforce (25 to 34)
2021 count
24
% of total
10.4%
Change from 2016
+2.1pp
24
10.4%
+2.1pp
Parents and homebuilders (35 to 49)
2021 count
42
% of total
18.2%
Change from 2016
+3.1pp
42
18.2%
+3.1pp
Older workers and pre-retirees (50 to 59)
2021 count
33
% of total
14.3%
Change from 2016
-1.3pp
33
14.3%
-1.3pp
Empty nesters and retirees (60 to 69)
2021 count
35
% of total
15.2%
Change from 2016
-2.5pp
35
15.2%
-2.5pp
Seniors (70 to 84)
2021 count
29
% of total
12.6%
Change from 2016
+2.7pp
29
12.6%
+2.7pp
Elderly aged (85 and over)
2021 count
4
% of total
1.7%
Change from 2016
+1.7pp
4
1.7%
+1.7pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+14
+5.6pp
Primary schoolers (5 to 11)
+18
+6.6pp
Secondary schoolers (12 to 17)
+9
+3.2pp
Tertiary education and independence (18 to 24)
-1
-1.6pp
Young workforce (25 to 34)
+8
+2.1pp
Parents and homebuilders (35 to 49)
+13
+3.1pp
Older workers and pre-retirees (50 to 59)
+3
-1.3pp
Empty nesters and retirees (60 to 69)
+1
-2.5pp
Seniors (70 to 84)
+10
+2.7pp
Elderly aged (85 and over)
+4
+1.7pp
Data table
Service age groups for Rowsley. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Moorabool (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Moorabool (S)% | Count | % | Moorabool (S)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 20 | 8.7% | 6.3% | 6 | 3.1% | 6.4% | +14 | +5.6pp |
| Primary schoolers (5 to 11) | 32 | 13.9% | 9.6% | 14 | 7.3% | 10.0% | +18 | +6.6pp |
| Secondary schoolers (12 to 17) | 17 | 7.4% | 7.8% | 8 | 4.2% | 7.9% | +9 | +3.2pp |
| Tertiary education and independence (18 to 24) | 12 | 5.2% | 7.2% | 13 | 6.8% | 7.9% | -1 | -1.6pp |
| Young workforce (25 to 34) | 24 | 10.4% | 12.7% | 16 | 8.3% | 11.0% | +8 | +2.1pp |
| Parents and homebuilders (35 to 49) | 42 | 18.2% | 20.2% | 29 | 15.1% | 20.9% | +13 | +3.1pp |
| Older workers and pre-retirees (50 to 59) | 33 | 14.3% | 13.3% | 30 | 15.6% | 14.2% | +3 | -1.3pp |
| Empty nesters and retirees (60 to 69) | 35 | 15.2% | 11.3% | 34 | 17.7% | 12.0% | +1 | -2.5pp |
| Seniors (70 to 84) | 29 | 12.6% | 10.0% | 19 | 9.9% | 8.2% | +10 | +2.7pp |
| Elderly aged (85 and over) | 4 | 1.7% | 1.7% | 0 | 0.0% | 1.5% | +4 | +1.7pp |
| Total | 231 | 100.0% | 100.0% | 192 | 100.0% | 100.0% | +39 | 0.0pp |