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 Quorn, accounting for 19.6% (241 people). This share was higher than Flinders Ranges (DC) (18%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 71 people and 5.8 percentage points.
Section overview
Age structure - Service age groups
Quorn - Total persons (Usual residence)
This table summarises service age groups for Quorn in 2021 for persons, with comparison against Flinders Ranges (DC) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Quorn, with comparison markers for Flinders Ranges (DC).
Babies and pre-schoolers (0 to 4)
2021 count
76
% of total
6.2%
Change from 2016
+2.0pp
76
6.2%
+2.0pp
Primary schoolers (5 to 11)
2021 count
68
% of total
5.5%
Change from 2016
-2.5pp
68
5.5%
-2.5pp
Secondary schoolers (12 to 17)
2021 count
64
% of total
5.2%
Change from 2016
-1.4pp
64
5.2%
-1.4pp
Tertiary education and independence (18 to 24)
2021 count
68
% of total
5.5%
Change from 2016
-0.4pp
68
5.5%
-0.4pp
Young workforce (25 to 34)
2021 count
115
% of total
9.3%
Change from 2016
+0.3pp
115
9.3%
+0.3pp
Parents and homebuilders (35 to 49)
2021 count
156
% of total
12.7%
Change from 2016
-3.7pp
156
12.7%
-3.7pp
Older workers and pre-retirees (50 to 59)
2021 count
177
% of total
14.4%
Change from 2016
-3.6pp
177
14.4%
-3.6pp
Empty nesters and retirees (60 to 69)
2021 count
214
% of total
17.4%
Change from 2016
+0.2pp
214
17.4%
+0.2pp
Seniors (70 to 84)
2021 count
241
% of total
19.6%
Change from 2016
+5.8pp
241
19.6%
+5.8pp
Elderly aged (85 and over)
2021 count
39
% of total
3.2%
Change from 2016
+0.8pp
39
3.2%
+0.8pp
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)
-31
-2.5pp
Secondary schoolers (12 to 17)
-17
-1.4pp
Tertiary education and independence (18 to 24)
-5
-0.4pp
Young workforce (25 to 34)
+4
+0.3pp
Parents and homebuilders (35 to 49)
-46
-3.7pp
Older workers and pre-retirees (50 to 59)
-45
-3.6pp
Empty nesters and retirees (60 to 69)
+2
+0.2pp
Seniors (70 to 84)
+71
+5.8pp
Elderly aged (85 and over)
+9
+0.8pp
Data table
Service age groups for Quorn. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Flinders Ranges (DC).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Flinders Ranges (DC)% | Count | % | Flinders Ranges (DC)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 76 | 6.2% | 5.2% | 52 | 4.2% | 5.2% | +24 | +2.0pp |
| Primary schoolers (5 to 11) | 68 | 5.5% | 6.7% | 99 | 8.0% | 7.1% | -31 | -2.5pp |
| Secondary schoolers (12 to 17) | 64 | 5.2% | 5.1% | 81 | 6.6% | 6.5% | -17 | -1.4pp |
| Tertiary education and independence (18 to 24) | 68 | 5.5% | 5.4% | 73 | 5.9% | 6.1% | -5 | -0.4pp |
| Young workforce (25 to 34) | 115 | 9.3% | 10.9% | 111 | 9.0% | 8.2% | +4 | +0.3pp |
| Parents and homebuilders (35 to 49) | 156 | 12.7% | 12.7% | 202 | 16.4% | 17.4% | -46 | -3.7pp |
| Older workers and pre-retirees (50 to 59) | 177 | 14.4% | 14.8% | 222 | 18.0% | 16.7% | -45 | -3.6pp |
| Empty nesters and retirees (60 to 69) | 214 | 17.4% | 18.9% | 212 | 17.2% | 16.9% | +2 | +0.2pp |
| Seniors (70 to 84) | 241 | 19.6% | 18.0% | 170 | 13.8% | 13.5% | +71 | +5.8pp |
| Elderly aged (85 and over) | 39 | 3.2% | 2.6% | 30 | 2.4% | 2.4% | +9 | +0.8pp |
| Total | 1,232 | 100.0% | 100.0% | 1,230 | 100.0% | 100.0% | +2 | 0.0pp |