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 Wayville, accounting for 19.1% (367 people). This share was lower than Unley (C) (19.6%). Since 2016, the biggest change was in Empty nesters and retirees (60 to 69), which decreased by 382 people and 8.5 percentage points.
Section overview
Age structure - Service age groups
Wayville - Total persons (Usual residence)
This table summarises service age groups for Wayville in 2021 for persons, with comparison against Unley (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Wayville, with comparison markers for Unley (C).
Babies and pre-schoolers (0 to 4)
2021 count
97
% of total
5.0%
Change from 2016
-0.4pp
97
5.0%
-0.4pp
Primary schoolers (5 to 11)
2021 count
113
% of total
5.9%
Change from 2016
-1.9pp
113
5.9%
-1.9pp
Secondary schoolers (12 to 17)
2021 count
98
% of total
5.1%
Change from 2016
-0.5pp
98
5.1%
-0.5pp
Tertiary education and independence (18 to 24)
2021 count
189
% of total
9.8%
Change from 2016
+2.2pp
189
9.8%
+2.2pp
Young workforce (25 to 34)
2021 count
349
% of total
18.2%
Change from 2016
+9.3pp
349
18.2%
+9.3pp
Parents and homebuilders (35 to 49)
2021 count
367
% of total
19.1%
Change from 2016
+1.1pp
367
19.1%
+1.1pp
Older workers and pre-retirees (50 to 59)
2021 count
244
% of total
12.7%
Change from 2016
-1.4pp
244
12.7%
-1.4pp
Empty nesters and retirees (60 to 69)
2021 count
188
% of total
9.8%
Change from 2016
-8.5pp
188
9.8%
-8.5pp
Seniors (70 to 84)
2021 count
167
% of total
8.7%
Change from 2016
-3.4pp
167
8.7%
-3.4pp
Elderly aged (85 and over)
2021 count
89
% of total
4.6%
Change from 2016
+1.6pp
89
4.6%
+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)
-70
-0.4pp
Primary schoolers (5 to 11)
-131
-1.9pp
Secondary schoolers (12 to 17)
-76
-0.5pp
Tertiary education and independence (18 to 24)
-47
+2.2pp
Young workforce (25 to 34)
+73
+9.3pp
Parents and homebuilders (35 to 49)
-193
+1.1pp
Older workers and pre-retirees (50 to 59)
-194
-1.4pp
Empty nesters and retirees (60 to 69)
-382
-8.5pp
Seniors (70 to 84)
-211
-3.4pp
Elderly aged (85 and over)
-5
+1.6pp
Data table
Service age groups for Wayville. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Unley (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Unley (C)% | Count | % | Unley (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 97 | 5.0% | 4.3% | 167 | 5.4% | 4.7% | -70 | -0.4pp |
| Primary schoolers (5 to 11) | 113 | 5.9% | 7.6% | 244 | 7.8% | 7.9% | -131 | -1.9pp |
| Secondary schoolers (12 to 17) | 98 | 5.1% | 6.9% | 174 | 5.6% | 6.6% | -76 | -0.5pp |
| Tertiary education and independence (18 to 24) | 189 | 9.8% | 8.2% | 236 | 7.6% | 9.4% | -47 | +2.2pp |
| Young workforce (25 to 34) | 349 | 18.2% | 12.4% | 276 | 8.9% | 13.5% | +73 | +9.3pp |
| Parents and homebuilders (35 to 49) | 367 | 19.1% | 19.6% | 560 | 18.0% | 19.8% | -193 | +1.1pp |
| Older workers and pre-retirees (50 to 59) | 244 | 12.7% | 12.6% | 438 | 14.1% | 12.7% | -194 | -1.4pp |
| Empty nesters and retirees (60 to 69) | 188 | 9.8% | 11.9% | 570 | 18.3% | 11.9% | -382 | -8.5pp |
| Seniors (70 to 84) | 167 | 8.7% | 12.2% | 378 | 12.1% | 9.2% | -211 | -3.4pp |
| Elderly aged (85 and over) | 89 | 4.6% | 4.1% | 94 | 3.0% | 4.3% | -5 | +1.6pp |
| Total | 1,922 | 100.0% | 100.0% | 3,112 | 100.0% | 100.0% | -1,190 | 0.0pp |