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 Andrews Farm, accounting for 19.5% (1,697 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 251 people and 1.5 percentage points.
Section overview
Age structure - Service age groups
Andrews Farm - Total persons (Usual residence)
This table summarises service age groups for Andrews Farm in 2021 for persons, with comparison against Playford (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Andrews Farm, with comparison markers for Playford (C).
Babies and pre-schoolers (0 to 4)
2021 count
804
% of total
9.2%
Change from 2016
-3.7pp
804
9.2%
-3.7pp
Primary schoolers (5 to 11)
2021 count
1,209
% of total
13.9%
Change from 2016
+0.6pp
1,209
13.9%
+0.6pp
Secondary schoolers (12 to 17)
2021 count
826
% of total
9.5%
Change from 2016
+1.1pp
826
9.5%
+1.1pp
Tertiary education and independence (18 to 24)
2021 count
886
% of total
10.2%
Change from 2016
-1.6pp
886
10.2%
-1.6pp
Young workforce (25 to 34)
2021 count
1,617
% of total
18.6%
Change from 2016
-1.9pp
1,617
18.6%
-1.9pp
Parents and homebuilders (35 to 49)
2021 count
1,697
% of total
19.5%
Change from 2016
+1.5pp
1,697
19.5%
+1.5pp
Older workers and pre-retirees (50 to 59)
2021 count
830
% of total
9.5%
Change from 2016
+0.6pp
830
9.5%
+0.6pp
Empty nesters and retirees (60 to 69)
2021 count
525
% of total
6.0%
Change from 2016
+2.0pp
525
6.0%
+2.0pp
Seniors (70 to 84)
2021 count
280
% of total
3.2%
Change from 2016
+1.1pp
280
3.2%
+1.1pp
Elderly aged (85 and over)
2021 count
30
% of total
0.3%
Change from 2016
+0.1pp
30
0.3%
+0.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-233
-3.7pp
Primary schoolers (5 to 11)
+143
+0.6pp
Secondary schoolers (12 to 17)
+152
+1.1pp
Tertiary education and independence (18 to 24)
-66
-1.6pp
Young workforce (25 to 34)
-33
-1.9pp
Parents and homebuilders (35 to 49)
+251
+1.5pp
Older workers and pre-retirees (50 to 59)
+117
+0.6pp
Empty nesters and retirees (60 to 69)
+206
+2.0pp
Seniors (70 to 84)
+111
+1.1pp
Elderly aged (85 and over)
+13
+0.1pp
Data table
Service age groups for Andrews Farm. 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) | 804 | 9.2% | 7.5% | 1,037 | 12.9% | 8.6% | -233 | -3.7pp |
| Primary schoolers (5 to 11) | 1,209 | 13.9% | 11.0% | 1,066 | 13.3% | 10.6% | +143 | +0.6pp |
| Secondary schoolers (12 to 17) | 826 | 9.5% | 8.1% | 674 | 8.4% | 7.8% | +152 | +1.1pp |
| Tertiary education and independence (18 to 24) | 886 | 10.2% | 9.5% | 952 | 11.8% | 10.5% | -66 | -1.6pp |
| Young workforce (25 to 34) | 1,617 | 18.6% | 15.9% | 1,650 | 20.5% | 15.3% | -33 | -1.9pp |
| Parents and homebuilders (35 to 49) | 1,697 | 19.5% | 18.5% | 1,446 | 18.0% | 18.2% | +251 | +1.5pp |
| Older workers and pre-retirees (50 to 59) | 830 | 9.5% | 11.6% | 713 | 8.9% | 12.3% | +117 | +0.6pp |
| Empty nesters and retirees (60 to 69) | 525 | 6.0% | 9.1% | 319 | 4.0% | 8.4% | +206 | +2.0pp |
| Seniors (70 to 84) | 280 | 3.2% | 7.2% | 169 | 2.1% | 6.9% | +111 | +1.1pp |
| Elderly aged (85 and over) | 30 | 0.3% | 1.6% | 17 | 0.2% | 1.5% | +13 | +0.1pp |
| Total | 8,699 | 100.0% | 100.0% | 8,043 | 100.0% | 100.0% | +656 | 0.0pp |