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, Empty nesters and retirees (60 to 69) was the most common category among residents in Bibaringa, accounting for 25.6% (63 people). This share was higher than Playford (C) (9.1%). Since 2016, the biggest change was in Older workers and pre-retirees (50 to 59), which decreased by 23 people and 8.2 percentage points.
Section overview
Age structure - Service age groups
Bibaringa - Total persons (Usual residence)
This table summarises service age groups for Bibaringa in 2021 for persons, with comparison against Playford (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Bibaringa, with comparison markers for Playford (C).
Babies and pre-schoolers (0 to 4)
2021 count
10
% of total
4.1%
Change from 2016
-1.7pp
10
4.1%
-1.7pp
Primary schoolers (5 to 11)
2021 count
27
% of total
11.0%
Change from 2016
+6.0pp
27
11.0%
+6.0pp
Secondary schoolers (12 to 17)
2021 count
9
% of total
3.7%
Change from 2016
-5.2pp
9
3.7%
-5.2pp
Tertiary education and independence (18 to 24)
2021 count
17
% of total
6.9%
Change from 2016
-0.4pp
17
6.9%
-0.4pp
Young workforce (25 to 34)
2021 count
12
% of total
4.9%
Change from 2016
-6.3pp
12
4.9%
-6.3pp
Parents and homebuilders (35 to 49)
2021 count
44
% of total
17.9%
Change from 2016
+2.1pp
44
17.9%
+2.1pp
Older workers and pre-retirees (50 to 59)
2021 count
32
% of total
13.0%
Change from 2016
-8.2pp
32
13.0%
-8.2pp
Empty nesters and retirees (60 to 69)
2021 count
63
% of total
25.6%
Change from 2016
+9.0pp
63
25.6%
+9.0pp
Seniors (70 to 84)
2021 count
22
% of total
8.9%
Change from 2016
+4.3pp
22
8.9%
+4.3pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
-1.2pp
0
0.0%
-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)
-5
-1.7pp
Primary schoolers (5 to 11)
+14
+6.0pp
Secondary schoolers (12 to 17)
-14
-5.2pp
Tertiary education and independence (18 to 24)
-2
-0.4pp
Young workforce (25 to 34)
-17
-6.3pp
Parents and homebuilders (35 to 49)
+3
+2.1pp
Older workers and pre-retirees (50 to 59)
-23
-8.2pp
Empty nesters and retirees (60 to 69)
+20
+9.0pp
Seniors (70 to 84)
+10
+4.3pp
Elderly aged (85 and over)
-3
-1.2pp
Data table
Service age groups for Bibaringa. 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) | 10 | 4.1% | 7.5% | 15 | 5.8% | 8.6% | -5 | -1.7pp |
| Primary schoolers (5 to 11) | 27 | 11.0% | 11.0% | 13 | 5.0% | 10.6% | +14 | +6.0pp |
| Secondary schoolers (12 to 17) | 9 | 3.7% | 8.1% | 23 | 8.9% | 7.8% | -14 | -5.2pp |
| Tertiary education and independence (18 to 24) | 17 | 6.9% | 9.5% | 19 | 7.3% | 10.5% | -2 | -0.4pp |
| Young workforce (25 to 34) | 12 | 4.9% | 15.9% | 29 | 11.2% | 15.3% | -17 | -6.3pp |
| Parents and homebuilders (35 to 49) | 44 | 17.9% | 18.5% | 41 | 15.8% | 18.2% | +3 | +2.1pp |
| Older workers and pre-retirees (50 to 59) | 32 | 13.0% | 11.6% | 55 | 21.2% | 12.3% | -23 | -8.2pp |
| Empty nesters and retirees (60 to 69) | 63 | 25.6% | 9.1% | 43 | 16.6% | 8.4% | +20 | +9.0pp |
| Seniors (70 to 84) | 22 | 8.9% | 7.2% | 12 | 4.6% | 6.9% | +10 | +4.3pp |
| Elderly aged (85 and over) | 0 | 0.0% | 1.6% | 3 | 1.2% | 1.5% | -3 | -1.2pp |
| Total | 246 | 100.0% | 100.0% | 259 | 100.0% | 100.0% | -13 | 0.0pp |