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 Diamantina (S), accounting for 20.7% (55 people). This share was higher than Regional Qld (13.2%). Since 2016, the biggest change was in Tertiary education and independence (18 to 24), which decreased by 28 people and 8.7 percentage points.
Section overview
Age structure - Service age groups
Diamantina (S) - Total persons (Usual residence)
This table summarises service age groups for Diamantina (S) in 2021 for persons, with comparison against Regional Qld and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Diamantina (S), with comparison markers for Regional Qld.
Babies and pre-schoolers (0 to 4)
2021 count
3
% of total
1.1%
Change from 2016
-6.8pp
3
1.1%
-6.8pp
Primary schoolers (5 to 11)
2021 count
13
% of total
4.9%
Change from 2016
-3.3pp
13
4.9%
-3.3pp
Secondary schoolers (12 to 17)
2021 count
4
% of total
1.5%
Change from 2016
-4.3pp
4
1.5%
-4.3pp
Tertiary education and independence (18 to 24)
2021 count
27
% of total
10.2%
Change from 2016
-8.7pp
27
10.2%
-8.7pp
Young workforce (25 to 34)
2021 count
42
% of total
15.8%
Change from 2016
+1.7pp
42
15.8%
+1.7pp
Parents and homebuilders (35 to 49)
2021 count
54
% of total
20.3%
Change from 2016
+3.5pp
54
20.3%
+3.5pp
Older workers and pre-retirees (50 to 59)
2021 count
55
% of total
20.7%
Change from 2016
+6.3pp
55
20.7%
+6.3pp
Empty nesters and retirees (60 to 69)
2021 count
27
% of total
10.2%
Change from 2016
+0.2pp
27
10.2%
+0.2pp
Seniors (70 to 84)
2021 count
14
% of total
5.3%
Change from 2016
+5.3pp
14
5.3%
+5.3pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-20
-6.8pp
Primary schoolers (5 to 11)
-11
-3.3pp
Secondary schoolers (12 to 17)
-13
-4.3pp
Tertiary education and independence (18 to 24)
-28
-8.7pp
Young workforce (25 to 34)
+1
+1.7pp
Parents and homebuilders (35 to 49)
+5
+3.5pp
Older workers and pre-retirees (50 to 59)
+13
+6.3pp
Empty nesters and retirees (60 to 69)
-2
+0.2pp
Seniors (70 to 84)
+14
+5.3pp
Elderly aged (85 and over)
0
0.0pp
Data table
Service age groups for Diamantina (S). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Regional Qld.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional Qld% | Count | % | Regional Qld% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 3 | 1.1% | 5.4% | 23 | 7.9% | 6.1% | -20 | -6.8pp |
| Primary schoolers (5 to 11) | 13 | 4.9% | 8.9% | 24 | 8.2% | 9.4% | -11 | -3.3pp |
| Secondary schoolers (12 to 17) | 4 | 1.5% | 7.8% | 17 | 5.8% | 7.7% | -13 | -4.3pp |
| Tertiary education and independence (18 to 24) | 27 | 10.2% | 7.9% | 55 | 18.9% | 8.3% | -28 | -8.7pp |
| Young workforce (25 to 34) | 42 | 15.8% | 12.4% | 41 | 14.1% | 12.4% | +1 | +1.7pp |
| Parents and homebuilders (35 to 49) | 54 | 20.3% | 19.0% | 49 | 16.8% | 19.6% | +5 | +3.5pp |
| Older workers and pre-retirees (50 to 59) | 55 | 20.7% | 13.2% | 42 | 14.4% | 13.4% | +13 | +6.3pp |
| Empty nesters and retirees (60 to 69) | 27 | 10.2% | 12.2% | 29 | 10.0% | 11.7% | -2 | +0.2pp |
| Seniors (70 to 84) | 14 | 5.3% | 11.3% | 0 | 0.0% | 9.4% | +14 | +5.3pp |
| Elderly aged (85 and over) | 0 | 0.0% | 2.1% | 0 | 0.0% | 1.9% | 0 | 0.0pp |
| Total | 266 | 100.0% | 100.0% | 291 | 100.0% | 100.0% | -25 | 0.0pp |