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 Virginia (SA), accounting for 20% (552 people). This share was higher than Playford (C) (18.5%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 552 people and 20 percentage points.
Section overview
Age structure - Service age groups
Virginia (SA) - Total persons (Usual residence)
This table summarises service age groups for Virginia (SA) in 2021 for persons, with comparison against Playford (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Virginia (SA), with comparison markers for Playford (C).
Babies and pre-schoolers (0 to 4)
2021 count
226
% of total
8.2%
Change from 2016
+8.2pp
226
8.2%
+8.2pp
Primary schoolers (5 to 11)
2021 count
308
% of total
11.2%
Change from 2016
+11.2pp
308
11.2%
+11.2pp
Secondary schoolers (12 to 17)
2021 count
165
% of total
6.0%
Change from 2016
+6.0pp
165
6.0%
+6.0pp
Tertiary education and independence (18 to 24)
2021 count
190
% of total
6.9%
Change from 2016
+6.9pp
190
6.9%
+6.9pp
Young workforce (25 to 34)
2021 count
500
% of total
18.1%
Change from 2016
+18.1pp
500
18.1%
+18.1pp
Parents and homebuilders (35 to 49)
2021 count
552
% of total
20.0%
Change from 2016
+20.0pp
552
20.0%
+20.0pp
Older workers and pre-retirees (50 to 59)
2021 count
291
% of total
10.5%
Change from 2016
-11.7pp
291
10.5%
-11.7pp
Empty nesters and retirees (60 to 69)
2021 count
291
% of total
10.5%
Change from 2016
-0.6pp
291
10.5%
-0.6pp
Seniors (70 to 84)
2021 count
181
% of total
6.6%
Change from 2016
+6.6pp
181
6.6%
+6.6pp
Elderly aged (85 and over)
2021 count
36
% of total
1.3%
Change from 2016
+1.3pp
36
1.3%
+1.3pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+226
+8.2pp
Primary schoolers (5 to 11)
+308
+11.2pp
Secondary schoolers (12 to 17)
+165
+6.0pp
Tertiary education and independence (18 to 24)
+190
+6.9pp
Young workforce (25 to 34)
+500
+18.1pp
Parents and homebuilders (35 to 49)
+552
+20.0pp
Older workers and pre-retirees (50 to 59)
+285
-11.7pp
Empty nesters and retirees (60 to 69)
+288
-0.6pp
Seniors (70 to 84)
+181
+6.6pp
Elderly aged (85 and over)
+36
+1.3pp
Data table
Service age groups for Virginia (SA). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Playford (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Playford (C)% | Count | % | Playford (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 226 | 8.2% | 7.5% | 0 | 0.0% | 8.6% | +226 | +8.2pp |
| Primary schoolers (5 to 11) | 308 | 11.2% | 11.0% | 0 | 0.0% | 10.6% | +308 | +11.2pp |
| Secondary schoolers (12 to 17) | 165 | 6.0% | 8.1% | 0 | 0.0% | 7.8% | +165 | +6.0pp |
| Tertiary education and independence (18 to 24) | 190 | 6.9% | 9.5% | 0 | 0.0% | 10.5% | +190 | +6.9pp |
| Young workforce (25 to 34) | 500 | 18.1% | 15.9% | 0 | 0.0% | 15.3% | +500 | +18.1pp |
| Parents and homebuilders (35 to 49) | 552 | 20.0% | 18.5% | 0 | 0.0% | 18.2% | +552 | +20.0pp |
| Older workers and pre-retirees (50 to 59) | 291 | 10.5% | 11.6% | 6 | 22.2% | 12.3% | +285 | -11.7pp |
| Empty nesters and retirees (60 to 69) | 291 | 10.5% | 9.1% | 3 | 11.1% | 8.4% | +288 | -0.6pp |
| Seniors (70 to 84) | 181 | 6.6% | 7.2% | 0 | 0.0% | 6.9% | +181 | +6.6pp |
| Elderly aged (85 and over) | 36 | 1.3% | 1.6% | 0 | 0.0% | 1.5% | +36 | +1.3pp |
| Total | 2,759 | 100.0% | 100.0% | 27 | 100.0% | 100.0% | +2,732 | 0.0pp |