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 Robertson (Qld), accounting for 18.8% (894 people). This share was lower than Brisbane (C) (22.1%). Since 2016, the biggest change was in Tertiary education and independence (18 to 24), which decreased by 249 people and 4.5 percentage points.
Section overview
Age structure - Service age groups
Robertson (Qld) - Total persons (Usual residence)
This table summarises service age groups for Robertson (Qld) in 2021 for persons, with comparison against Brisbane (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Robertson (Qld), with comparison markers for Brisbane (C).
Babies and pre-schoolers (0 to 4)
2021 count
215
% of total
4.5%
Change from 2016
-0.2pp
215
4.5%
-0.2pp
Primary schoolers (5 to 11)
2021 count
325
% of total
6.8%
Change from 2016
+0.3pp
325
6.8%
+0.3pp
Secondary schoolers (12 to 17)
2021 count
254
% of total
5.3%
Change from 2016
-0.7pp
254
5.3%
-0.7pp
Tertiary education and independence (18 to 24)
2021 count
557
% of total
11.7%
Change from 2016
-4.5pp
557
11.7%
-4.5pp
Young workforce (25 to 34)
2021 count
836
% of total
17.6%
Change from 2016
-2.0pp
836
17.6%
-2.0pp
Parents and homebuilders (35 to 49)
2021 count
894
% of total
18.8%
Change from 2016
+1.5pp
894
18.8%
+1.5pp
Older workers and pre-retirees (50 to 59)
2021 count
514
% of total
10.8%
Change from 2016
+1.3pp
514
10.8%
+1.3pp
Empty nesters and retirees (60 to 69)
2021 count
443
% of total
9.3%
Change from 2016
+0.3pp
443
9.3%
+0.3pp
Seniors (70 to 84)
2021 count
589
% of total
12.4%
Change from 2016
+3.8pp
589
12.4%
+3.8pp
Elderly aged (85 and over)
2021 count
141
% of total
3.0%
Change from 2016
+0.8pp
141
3.0%
+0.8pp
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
-0.2pp
Primary schoolers (5 to 11)
+2
+0.3pp
Secondary schoolers (12 to 17)
-46
-0.7pp
Tertiary education and independence (18 to 24)
-249
-4.5pp
Young workforce (25 to 34)
-137
-2.0pp
Parents and homebuilders (35 to 49)
+35
+1.5pp
Older workers and pre-retirees (50 to 59)
+41
+1.3pp
Empty nesters and retirees (60 to 69)
-4
+0.3pp
Seniors (70 to 84)
+161
+3.8pp
Elderly aged (85 and over)
+31
+0.8pp
Data table
Service age groups for Robertson (Qld). 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) | 215 | 4.5% | 5.5% | 232 | 4.7% | 6.0% | -17 | -0.2pp |
| Primary schoolers (5 to 11) | 325 | 6.8% | 8.4% | 323 | 6.5% | 8.3% | +2 | +0.3pp |
| Secondary schoolers (12 to 17) | 254 | 5.3% | 7.0% | 300 | 6.0% | 6.7% | -46 | -0.7pp |
| Tertiary education and independence (18 to 24) | 557 | 11.7% | 10.4% | 806 | 16.2% | 11.5% | -249 | -4.5pp |
| Young workforce (25 to 34) | 836 | 17.6% | 16.6% | 973 | 19.6% | 17.3% | -137 | -2.0pp |
| Parents and homebuilders (35 to 49) | 894 | 18.8% | 22.1% | 859 | 17.3% | 21.5% | +35 | +1.5pp |
| Older workers and pre-retirees (50 to 59) | 514 | 10.8% | 11.8% | 473 | 9.5% | 11.6% | +41 | +1.3pp |
| Empty nesters and retirees (60 to 69) | 443 | 9.3% | 8.8% | 447 | 9.0% | 8.6% | -4 | +0.3pp |
| Seniors (70 to 84) | 589 | 12.4% | 7.7% | 428 | 8.6% | 6.6% | +161 | +3.8pp |
| Elderly aged (85 and over) | 141 | 3.0% | 1.8% | 110 | 2.2% | 1.8% | +31 | +0.8pp |
| Total | 4,749 | 100.0% | 100.0% | 4,973 | 100.0% | 100.0% | -224 | 0.0pp |