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, Older workers and pre-retirees (50 to 59) was the most common category among residents in Devereux Creek, accounting for 25.4% (103 people). This share was higher than Mackay (R) (13.8%). Since 2016, the biggest change was in Secondary schoolers (12 to 17), which decreased by 30 people and 8.2 percentage points.
Section overview
Age structure - Service age groups
Devereux Creek - Total persons (Usual residence)
This table summarises service age groups for Devereux Creek in 2021 for persons, with comparison against Mackay (R) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Devereux Creek, with comparison markers for Mackay (R).
Babies and pre-schoolers (0 to 4)
2021 count
15
% of total
3.7%
Change from 2016
+1.1pp
15
3.7%
+1.1pp
Primary schoolers (5 to 11)
2021 count
28
% of total
6.9%
Change from 2016
+1.1pp
28
6.9%
+1.1pp
Secondary schoolers (12 to 17)
2021 count
20
% of total
4.9%
Change from 2016
-8.2pp
20
4.9%
-8.2pp
Tertiary education and independence (18 to 24)
2021 count
36
% of total
8.9%
Change from 2016
-1.6pp
36
8.9%
-1.6pp
Young workforce (25 to 34)
2021 count
41
% of total
10.1%
Change from 2016
+2.2pp
41
10.1%
+2.2pp
Parents and homebuilders (35 to 49)
2021 count
61
% of total
15.0%
Change from 2016
-7.3pp
61
15.0%
-7.3pp
Older workers and pre-retirees (50 to 59)
2021 count
103
% of total
25.4%
Change from 2016
+4.1pp
103
25.4%
+4.1pp
Empty nesters and retirees (60 to 69)
2021 count
61
% of total
15.0%
Change from 2016
+5.6pp
61
15.0%
+5.6pp
Seniors (70 to 84)
2021 count
24
% of total
5.9%
Change from 2016
+0.7pp
24
5.9%
+0.7pp
Elderly aged (85 and over)
2021 count
3
% of total
0.7%
Change from 2016
-0.1pp
3
0.7%
-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)
+5
+1.1pp
Primary schoolers (5 to 11)
+6
+1.1pp
Secondary schoolers (12 to 17)
-30
-8.2pp
Tertiary education and independence (18 to 24)
-4
-1.6pp
Young workforce (25 to 34)
+11
+2.2pp
Parents and homebuilders (35 to 49)
-24
-7.3pp
Older workers and pre-retirees (50 to 59)
+22
+4.1pp
Empty nesters and retirees (60 to 69)
+25
+5.6pp
Seniors (70 to 84)
+4
+0.7pp
Elderly aged (85 and over)
0
-0.1pp
Data table
Service age groups for Devereux Creek. 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) | 15 | 3.7% | 6.2% | 10 | 2.6% | 6.7% | +5 | +1.1pp |
| Primary schoolers (5 to 11) | 28 | 6.9% | 9.6% | 22 | 5.8% | 9.9% | +6 | +1.1pp |
| Secondary schoolers (12 to 17) | 20 | 4.9% | 8.3% | 50 | 13.1% | 8.1% | -30 | -8.2pp |
| Tertiary education and independence (18 to 24) | 36 | 8.9% | 7.8% | 40 | 10.5% | 8.1% | -4 | -1.6pp |
| Young workforce (25 to 34) | 41 | 10.1% | 12.8% | 30 | 7.9% | 13.5% | +11 | +2.2pp |
| Parents and homebuilders (35 to 49) | 61 | 15.0% | 19.9% | 85 | 22.3% | 20.7% | -24 | -7.3pp |
| Older workers and pre-retirees (50 to 59) | 103 | 25.4% | 13.8% | 81 | 21.3% | 14.2% | +22 | +4.1pp |
| Empty nesters and retirees (60 to 69) | 61 | 15.0% | 11.4% | 36 | 9.4% | 10.1% | +25 | +5.6pp |
| Seniors (70 to 84) | 24 | 5.9% | 8.6% | 20 | 5.2% | 7.2% | +4 | +0.7pp |
| Elderly aged (85 and over) | 3 | 0.7% | 1.6% | 3 | 0.8% | 1.4% | 0 | -0.1pp |
| Total | 406 | 100.0% | 100.0% | 381 | 100.0% | 100.0% | +25 | 0.0pp |