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 Bass Coast (S), accounting for 18.4% (7,500 people). This share was higher than Regional Vic. (13.6%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 1,990 people and 1.9 percentage points.
Section overview
Age structure - Service age groups
Bass Coast (S) - Total persons (Usual residence)
This table summarises service age groups for Bass Coast (S) in 2021 for persons, with comparison against Regional Vic. and change since 2016.
Chart view
Age structure - Service age groups snapshot
2021 distribution by category for Bass Coast (S), with comparison markers for Regional Vic..
Babies and pre-schoolers (0 to 4)
2021 count
1,842
% of total
4.5%
Change from 2016
-0.6pp
1,842
4.5%
-0.6pp
Primary schoolers (5 to 11)
2021 count
2,993
% of total
7.3%
Change from 2016
-0.7pp
2,993
7.3%
-0.7pp
Secondary schoolers (12 to 17)
2021 count
2,518
% of total
6.2%
Change from 2016
-0.2pp
2,518
6.2%
-0.2pp
Tertiary education and independence (18 to 24)
2021 count
2,068
% of total
5.1%
Change from 2016
0.0pp
2,068
5.1%
0.0pp
Young workforce (25 to 34)
2021 count
3,589
% of total
8.8%
Change from 2016
0.0pp
3,589
8.8%
0.0pp
Parents and homebuilders (35 to 49)
2021 count
6,508
% of total
16.0%
Change from 2016
-0.5pp
6,508
16.0%
-0.5pp
Older workers and pre-retirees (50 to 59)
2021 count
5,546
% of total
13.6%
Change from 2016
-0.6pp
5,546
13.6%
-0.6pp
Empty nesters and retirees (60 to 69)
2021 count
7,500
% of total
18.4%
Change from 2016
+1.1pp
7,500
18.4%
+1.1pp
Seniors (70 to 84)
2021 count
7,002
% of total
17.2%
Change from 2016
+1.9pp
7,002
17.2%
+1.9pp
Elderly aged (85 and over)
2021 count
1,222
% of total
3.0%
Change from 2016
-0.5pp
1,222
3.0%
-0.5pp
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+174
-0.6pp
Primary schoolers (5 to 11)
+370
-0.7pp
Secondary schoolers (12 to 17)
+424
-0.2pp
Tertiary education and independence (18 to 24)
+392
0.0pp
Young workforce (25 to 34)
+710
0.0pp
Parents and homebuilders (35 to 49)
+1,106
-0.5pp
Older workers and pre-retirees (50 to 59)
+893
-0.6pp
Empty nesters and retirees (60 to 69)
+1,828
+1.1pp
Seniors (70 to 84)
+1,990
+1.9pp
Elderly aged (85 and over)
+85
-0.5pp
Data table
Service age groups for Bass Coast (S). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Regional Vic..
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional Vic.% | Count | % | Regional Vic.% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 1,842 | 4.5% | 5.4% | 1,668 | 5.1% | 5.8% | +174 | -0.6pp |
| Primary schoolers (5 to 11) | 2,993 | 7.3% | 8.4% | 2,623 | 8.0% | 8.7% | +370 | -0.7pp |
| Secondary schoolers (12 to 17) | 2,518 | 6.2% | 7.2% | 2,094 | 6.4% | 7.4% | +424 | -0.2pp |
| Tertiary education and independence (18 to 24) | 2,068 | 5.1% | 7.3% | 1,676 | 5.1% | 7.9% | +392 | 0.0pp |
| Young workforce (25 to 34) | 3,589 | 8.8% | 11.7% | 2,879 | 8.8% | 10.9% | +710 | 0.0pp |
| Parents and homebuilders (35 to 49) | 6,508 | 16.0% | 17.6% | 5,402 | 16.5% | 18.1% | +1,106 | -0.5pp |
| Older workers and pre-retirees (50 to 59) | 5,546 | 13.6% | 13.1% | 4,653 | 14.2% | 13.9% | +893 | -0.6pp |
| Empty nesters and retirees (60 to 69) | 7,500 | 18.4% | 13.6% | 5,672 | 17.3% | 13.4% | +1,828 | +1.1pp |
| Seniors (70 to 84) | 7,002 | 17.2% | 13.0% | 5,012 | 15.3% | 11.1% | +1,990 | +1.9pp |
| Elderly aged (85 and over) | 1,222 | 3.0% | 2.7% | 1,137 | 3.5% | 2.7% | +85 | -0.5pp |
| Total | 40,789 | 100.0% | 100.0% | 32,804 | 100.0% | 100.0% | +7,985 | 0.0pp |