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 Goodwood (SA), accounting for 21.6% (610 people). This share was higher than Unley (C) (19.6%). Since 2016, the biggest change was in Young workforce (25 to 34), which decreased by 67 people and 1.4 percentage points.
Section overview
Age structure - Service age groups
Goodwood (SA) - Total persons (Usual residence)
This table summarises service age groups for Goodwood (SA) in 2021 for persons, with comparison against Unley (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Goodwood (SA), with comparison markers for Unley (C).
Babies and pre-schoolers (0 to 4)
2021 count
160
% of total
5.7%
Change from 2016
+0.3pp
160
5.7%
+0.3pp
Primary schoolers (5 to 11)
2021 count
209
% of total
7.4%
Change from 2016
-0.8pp
209
7.4%
-0.8pp
Secondary schoolers (12 to 17)
2021 count
154
% of total
5.5%
Change from 2016
+0.8pp
154
5.5%
+0.8pp
Tertiary education and independence (18 to 24)
2021 count
208
% of total
7.4%
Change from 2016
-1.3pp
208
7.4%
-1.3pp
Young workforce (25 to 34)
2021 count
444
% of total
15.7%
Change from 2016
-1.4pp
444
15.7%
-1.4pp
Parents and homebuilders (35 to 49)
2021 count
610
% of total
21.6%
Change from 2016
-0.3pp
610
21.6%
-0.3pp
Older workers and pre-retirees (50 to 59)
2021 count
366
% of total
13.0%
Change from 2016
+1.1pp
366
13.0%
+1.1pp
Empty nesters and retirees (60 to 69)
2021 count
348
% of total
12.3%
Change from 2016
+1.6pp
348
12.3%
+1.6pp
Seniors (70 to 84)
2021 count
260
% of total
9.2%
Change from 2016
+1.7pp
260
9.2%
+1.7pp
Elderly aged (85 and over)
2021 count
65
% of total
2.3%
Change from 2016
-1.2pp
65
2.3%
-1.2pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
0
+0.3pp
Primary schoolers (5 to 11)
-36
-0.8pp
Secondary schoolers (12 to 17)
+15
+0.8pp
Tertiary education and independence (18 to 24)
-51
-1.3pp
Young workforce (25 to 34)
-67
-1.4pp
Parents and homebuilders (35 to 49)
-45
-0.3pp
Older workers and pre-retirees (50 to 59)
+11
+1.1pp
Empty nesters and retirees (60 to 69)
+29
+1.6pp
Seniors (70 to 84)
+37
+1.7pp
Elderly aged (85 and over)
-39
-1.2pp
Data table
Service age groups for Goodwood (SA). 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) | 160 | 5.7% | 4.3% | 160 | 5.4% | 4.7% | 0 | +0.3pp |
| Primary schoolers (5 to 11) | 209 | 7.4% | 7.6% | 245 | 8.2% | 7.9% | -36 | -0.8pp |
| Secondary schoolers (12 to 17) | 154 | 5.5% | 6.9% | 139 | 4.7% | 6.6% | +15 | +0.8pp |
| Tertiary education and independence (18 to 24) | 208 | 7.4% | 8.2% | 259 | 8.7% | 9.4% | -51 | -1.3pp |
| Young workforce (25 to 34) | 444 | 15.7% | 12.4% | 511 | 17.1% | 13.5% | -67 | -1.4pp |
| Parents and homebuilders (35 to 49) | 610 | 21.6% | 19.6% | 655 | 21.9% | 19.8% | -45 | -0.3pp |
| Older workers and pre-retirees (50 to 59) | 366 | 13.0% | 12.6% | 355 | 11.9% | 12.7% | +11 | +1.1pp |
| Empty nesters and retirees (60 to 69) | 348 | 12.3% | 11.9% | 319 | 10.7% | 11.9% | +29 | +1.6pp |
| Seniors (70 to 84) | 260 | 9.2% | 12.2% | 223 | 7.5% | 9.2% | +37 | +1.7pp |
| Elderly aged (85 and over) | 65 | 2.3% | 4.1% | 104 | 3.5% | 4.3% | -39 | -1.2pp |
| Total | 2,823 | 100.0% | 100.0% | 2,986 | 100.0% | 100.0% | -163 | 0.0pp |