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 Keperra, accounting for 21.4% (1,498 people). This share was lower than Brisbane (C) (22.1%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 89 people and 1 percentage point.
Section overview
Age structure - Service age groups
Keperra - Total persons (Usual residence)
This table summarises service age groups for Keperra in 2021 for persons, with comparison against Brisbane (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Keperra, with comparison markers for Brisbane (C).
Babies and pre-schoolers (0 to 4)
2021 count
439
% of total
6.3%
Change from 2016
-1.2pp
439
6.3%
-1.2pp
Primary schoolers (5 to 11)
2021 count
638
% of total
9.1%
Change from 2016
0.0pp
638
9.1%
0.0pp
Secondary schoolers (12 to 17)
2021 count
500
% of total
7.1%
Change from 2016
+0.3pp
500
7.1%
+0.3pp
Tertiary education and independence (18 to 24)
2021 count
536
% of total
7.6%
Change from 2016
+0.1pp
536
7.6%
+0.1pp
Young workforce (25 to 34)
2021 count
967
% of total
13.8%
Change from 2016
+0.1pp
967
13.8%
+0.1pp
Parents and homebuilders (35 to 49)
2021 count
1,498
% of total
21.4%
Change from 2016
+0.2pp
1,498
21.4%
+0.2pp
Older workers and pre-retirees (50 to 59)
2021 count
748
% of total
10.7%
Change from 2016
+0.6pp
748
10.7%
+0.6pp
Empty nesters and retirees (60 to 69)
2021 count
593
% of total
8.5%
Change from 2016
-1.5pp
593
8.5%
-1.5pp
Seniors (70 to 84)
2021 count
807
% of total
11.5%
Change from 2016
+1.0pp
807
11.5%
+1.0pp
Elderly aged (85 and over)
2021 count
257
% of total
3.7%
Change from 2016
-0.1pp
257
3.7%
-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)
-74
-1.2pp
Primary schoolers (5 to 11)
+20
0.0pp
Secondary schoolers (12 to 17)
+35
+0.3pp
Tertiary education and independence (18 to 24)
+24
+0.1pp
Young workforce (25 to 34)
+33
+0.1pp
Parents and homebuilders (35 to 49)
+53
+0.2pp
Older workers and pre-retirees (50 to 59)
+63
+0.6pp
Empty nesters and retirees (60 to 69)
-86
-1.5pp
Seniors (70 to 84)
+89
+1.0pp
Elderly aged (85 and over)
+1
-0.1pp
Data table
Service age groups for Keperra. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Brisbane (C)% | Count | % | Brisbane (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 439 | 6.3% | 5.5% | 513 | 7.5% | 6.0% | -74 | -1.2pp |
| Primary schoolers (5 to 11) | 638 | 9.1% | 8.4% | 618 | 9.1% | 8.3% | +20 | 0.0pp |
| Secondary schoolers (12 to 17) | 500 | 7.1% | 7.0% | 465 | 6.8% | 6.7% | +35 | +0.3pp |
| Tertiary education and independence (18 to 24) | 536 | 7.6% | 10.4% | 512 | 7.5% | 11.5% | +24 | +0.1pp |
| Young workforce (25 to 34) | 967 | 13.8% | 16.6% | 934 | 13.7% | 17.3% | +33 | +0.1pp |
| Parents and homebuilders (35 to 49) | 1,498 | 21.4% | 22.1% | 1,445 | 21.2% | 21.5% | +53 | +0.2pp |
| Older workers and pre-retirees (50 to 59) | 748 | 10.7% | 11.8% | 685 | 10.1% | 11.6% | +63 | +0.6pp |
| Empty nesters and retirees (60 to 69) | 593 | 8.5% | 8.8% | 679 | 10.0% | 8.6% | -86 | -1.5pp |
| Seniors (70 to 84) | 807 | 11.5% | 7.7% | 718 | 10.5% | 6.6% | +89 | +1.0pp |
| Elderly aged (85 and over) | 257 | 3.7% | 1.8% | 256 | 3.8% | 1.8% | +1 | -0.1pp |
| Total | 7,014 | 100.0% | 100.0% | 6,807 | 100.0% | 100.0% | +207 | 0.0pp |