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, Young workforce (25 to 34) was the most common category among residents in Anangu Pitjantjatjara (AC), accounting for 21% (489 people). This share was higher than Regional SA (10.5%). Since 2016, the biggest change was in Young workforce (25 to 34), which increased by 71 people and 2.6 percentage points.
Section overview
Age structure - Service age groups
Anangu Pitjantjatjara (AC) - Total persons (Usual residence)
This table summarises service age groups for Anangu Pitjantjatjara (AC) in 2021 for persons, with comparison against Regional SA and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Anangu Pitjantjatjara (AC), with comparison markers for Regional SA.
Babies and pre-schoolers (0 to 4)
2021 count
193
% of total
8.3%
Change from 2016
+0.6pp
193
8.3%
+0.6pp
Primary schoolers (5 to 11)
2021 count
260
% of total
11.1%
Change from 2016
+0.1pp
260
11.1%
+0.1pp
Secondary schoolers (12 to 17)
2021 count
218
% of total
9.3%
Change from 2016
+1.0pp
218
9.3%
+1.0pp
Tertiary education and independence (18 to 24)
2021 count
316
% of total
13.5%
Change from 2016
-1.5pp
316
13.5%
-1.5pp
Young workforce (25 to 34)
2021 count
489
% of total
21.0%
Change from 2016
+2.6pp
489
21.0%
+2.6pp
Parents and homebuilders (35 to 49)
2021 count
429
% of total
18.4%
Change from 2016
-2.3pp
429
18.4%
-2.3pp
Older workers and pre-retirees (50 to 59)
2021 count
244
% of total
10.5%
Change from 2016
+1.8pp
244
10.5%
+1.8pp
Empty nesters and retirees (60 to 69)
2021 count
111
% of total
4.8%
Change from 2016
-1.1pp
111
4.8%
-1.1pp
Seniors (70 to 84)
2021 count
52
% of total
2.2%
Change from 2016
-0.2pp
52
2.2%
-0.2pp
Elderly aged (85 and over)
2021 count
12
% of total
0.5%
Change from 2016
-0.2pp
12
0.5%
-0.2pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+17
+0.6pp
Primary schoolers (5 to 11)
+10
+0.1pp
Secondary schoolers (12 to 17)
+29
+1.0pp
Tertiary education and independence (18 to 24)
-25
-1.5pp
Young workforce (25 to 34)
+71
+2.6pp
Parents and homebuilders (35 to 49)
-42
-2.3pp
Older workers and pre-retirees (50 to 59)
+47
+1.8pp
Empty nesters and retirees (60 to 69)
-23
-1.1pp
Seniors (70 to 84)
-2
-0.2pp
Elderly aged (85 and over)
-4
-0.2pp
Data table
Service age groups for Anangu Pitjantjatjara (AC). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Regional SA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional SA% | Count | % | Regional SA% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 193 | 8.3% | 4.9% | 176 | 7.7% | 5.5% | +17 | +0.6pp |
| Primary schoolers (5 to 11) | 260 | 11.1% | 8.1% | 250 | 11.0% | 8.6% | +10 | +0.1pp |
| Secondary schoolers (12 to 17) | 218 | 9.3% | 7.0% | 189 | 8.3% | 7.2% | +29 | +1.0pp |
| Tertiary education and independence (18 to 24) | 316 | 13.5% | 6.5% | 341 | 15.0% | 6.8% | -25 | -1.5pp |
| Young workforce (25 to 34) | 489 | 21.0% | 10.5% | 418 | 18.4% | 10.4% | +71 | +2.6pp |
| Parents and homebuilders (35 to 49) | 429 | 18.4% | 16.4% | 471 | 20.7% | 17.8% | -42 | -2.3pp |
| Older workers and pre-retirees (50 to 59) | 244 | 10.5% | 13.9% | 197 | 8.7% | 14.6% | +47 | +1.8pp |
| Empty nesters and retirees (60 to 69) | 111 | 4.8% | 15.1% | 134 | 5.9% | 14.4% | -23 | -1.1pp |
| Seniors (70 to 84) | 52 | 2.2% | 14.7% | 54 | 2.4% | 12.1% | -2 | -0.2pp |
| Elderly aged (85 and over) | 12 | 0.5% | 2.8% | 16 | 0.7% | 2.7% | -4 | -0.2pp |
| Total | 2,333 | 100.0% | 100.0% | 2,276 | 100.0% | 100.0% | +57 | 0.0pp |