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 Bloomsbury, accounting for 19.5% (105 people). This share was higher than Mackay (R) (11.4%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which decreased by 53 people and 7.3 percentage points.
Section overview
Age structure - Service age groups
Bloomsbury - Total persons (Usual residence)
This table summarises service age groups for Bloomsbury in 2021 for persons, with comparison against Mackay (R) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Bloomsbury, with comparison markers for Mackay (R).
Babies and pre-schoolers (0 to 4)
2021 count
19
% of total
3.5%
Change from 2016
-1.7pp
19
3.5%
-1.7pp
Primary schoolers (5 to 11)
2021 count
25
% of total
4.6%
Change from 2016
-7.4pp
25
4.6%
-7.4pp
Secondary schoolers (12 to 17)
2021 count
64
% of total
11.9%
Change from 2016
+3.5pp
64
11.9%
+3.5pp
Tertiary education and independence (18 to 24)
2021 count
29
% of total
5.4%
Change from 2016
+1.9pp
29
5.4%
+1.9pp
Young workforce (25 to 34)
2021 count
41
% of total
7.6%
Change from 2016
+1.2pp
41
7.6%
+1.2pp
Parents and homebuilders (35 to 49)
2021 count
87
% of total
16.1%
Change from 2016
-7.3pp
87
16.1%
-7.3pp
Older workers and pre-retirees (50 to 59)
2021 count
91
% of total
16.9%
Change from 2016
+3.0pp
91
16.9%
+3.0pp
Empty nesters and retirees (60 to 69)
2021 count
105
% of total
19.5%
Change from 2016
+0.9pp
105
19.5%
+0.9pp
Seniors (70 to 84)
2021 count
62
% of total
11.5%
Change from 2016
+1.3pp
62
11.5%
+1.3pp
Elderly aged (85 and over)
2021 count
5
% of total
0.9%
Change from 2016
+0.9pp
5
0.9%
+0.9pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-12
-1.7pp
Primary schoolers (5 to 11)
-47
-7.4pp
Secondary schoolers (12 to 17)
+14
+3.5pp
Tertiary education and independence (18 to 24)
+8
+1.9pp
Young workforce (25 to 34)
+3
+1.2pp
Parents and homebuilders (35 to 49)
-53
-7.3pp
Older workers and pre-retirees (50 to 59)
+8
+3.0pp
Empty nesters and retirees (60 to 69)
-6
+0.9pp
Seniors (70 to 84)
+1
+1.3pp
Elderly aged (85 and over)
+5
+0.9pp
Data table
Service age groups for Bloomsbury. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Mackay (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mackay (R)% | Count | % | Mackay (R)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 19 | 3.5% | 6.2% | 31 | 5.2% | 6.7% | -12 | -1.7pp |
| Primary schoolers (5 to 11) | 25 | 4.6% | 9.6% | 72 | 12.0% | 9.9% | -47 | -7.4pp |
| Secondary schoolers (12 to 17) | 64 | 11.9% | 8.3% | 50 | 8.4% | 8.1% | +14 | +3.5pp |
| Tertiary education and independence (18 to 24) | 29 | 5.4% | 7.8% | 21 | 3.5% | 8.1% | +8 | +1.9pp |
| Young workforce (25 to 34) | 41 | 7.6% | 12.8% | 38 | 6.4% | 13.5% | +3 | +1.2pp |
| Parents and homebuilders (35 to 49) | 87 | 16.1% | 19.9% | 140 | 23.4% | 20.7% | -53 | -7.3pp |
| Older workers and pre-retirees (50 to 59) | 91 | 16.9% | 13.8% | 83 | 13.9% | 14.2% | +8 | +3.0pp |
| Empty nesters and retirees (60 to 69) | 105 | 19.5% | 11.4% | 111 | 18.6% | 10.1% | -6 | +0.9pp |
| Seniors (70 to 84) | 62 | 11.5% | 8.6% | 61 | 10.2% | 7.2% | +1 | +1.3pp |
| Elderly aged (85 and over) | 5 | 0.9% | 1.6% | 0 | 0.0% | 1.4% | +5 | +0.9pp |
| Total | 539 | 100.0% | 100.0% | 598 | 100.0% | 100.0% | -59 | 0.0pp |