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 Green Hill, accounting for 29.4% (52 people). This share was higher than Cairns (R) (13.6%). Since 2016, the biggest change was in Older workers and pre-retirees (50 to 59), which increased by 32 people and 17.5 percentage points.
Section overview
Age structure - Service age groups
Green Hill - Total persons (Usual residence)
This table summarises service age groups for Green Hill in 2021 for persons, with comparison against Cairns (R) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Green Hill, with comparison markers for Cairns (R).
Babies and pre-schoolers (0 to 4)
2021 count
3
% of total
1.7%
Change from 2016
-5.4pp
3
1.7%
-5.4pp
Primary schoolers (5 to 11)
2021 count
0
% of total
0.0%
Change from 2016
-14.3pp
0
0.0%
-14.3pp
Secondary schoolers (12 to 17)
2021 count
12
% of total
6.8%
Change from 2016
-1.5pp
12
6.8%
-1.5pp
Tertiary education and independence (18 to 24)
2021 count
21
% of total
11.9%
Change from 2016
+3.6pp
21
11.9%
+3.6pp
Young workforce (25 to 34)
2021 count
13
% of total
7.3%
Change from 2016
+2.5pp
13
7.3%
+2.5pp
Parents and homebuilders (35 to 49)
2021 count
20
% of total
11.3%
Change from 2016
-5.4pp
20
11.3%
-5.4pp
Older workers and pre-retirees (50 to 59)
2021 count
52
% of total
29.4%
Change from 2016
+17.5pp
52
29.4%
+17.5pp
Empty nesters and retirees (60 to 69)
2021 count
17
% of total
9.6%
Change from 2016
+3.6pp
17
9.6%
+3.6pp
Seniors (70 to 84)
2021 count
29
% of total
16.4%
Change from 2016
+12.8pp
29
16.4%
+12.8pp
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)
-9
-5.4pp
Primary schoolers (5 to 11)
-24
-14.3pp
Secondary schoolers (12 to 17)
-2
-1.5pp
Tertiary education and independence (18 to 24)
+7
+3.6pp
Young workforce (25 to 34)
+5
+2.5pp
Parents and homebuilders (35 to 49)
-8
-5.4pp
Older workers and pre-retirees (50 to 59)
+32
+17.5pp
Empty nesters and retirees (60 to 69)
+7
+3.6pp
Seniors (70 to 84)
+23
+12.8pp
Elderly aged (85 and over)
0
0.0pp
Data table
Service age groups for Green Hill. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Cairns (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Cairns (R)% | Count | % | Cairns (R)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 3 | 1.7% | 5.5% | 12 | 7.1% | 6.5% | -9 | -5.4pp |
| Primary schoolers (5 to 11) | 0 | 0.0% | 9.2% | 24 | 14.3% | 9.9% | -24 | -14.3pp |
| Secondary schoolers (12 to 17) | 12 | 6.8% | 8.3% | 14 | 8.3% | 8.1% | -2 | -1.5pp |
| Tertiary education and independence (18 to 24) | 21 | 11.9% | 7.7% | 14 | 8.3% | 8.0% | +7 | +3.6pp |
| Young workforce (25 to 34) | 13 | 7.3% | 13.2% | 8 | 4.8% | 13.6% | +5 | +2.5pp |
| Parents and homebuilders (35 to 49) | 20 | 11.3% | 20.9% | 28 | 16.7% | 21.9% | -8 | -5.4pp |
| Older workers and pre-retirees (50 to 59) | 52 | 29.4% | 13.6% | 20 | 11.9% | 13.6% | +32 | +17.5pp |
| Empty nesters and retirees (60 to 69) | 17 | 9.6% | 11.2% | 10 | 6.0% | 10.4% | +7 | +3.6pp |
| Seniors (70 to 84) | 29 | 16.4% | 8.8% | 6 | 3.6% | 6.6% | +23 | +12.8pp |
| Elderly aged (85 and over) | 0 | 0.0% | 1.5% | 0 | 0.0% | 1.3% | 0 | 0.0pp |
| Total | 177 | 100.0% | 100.0% | 168 | 100.0% | 100.0% | +9 | 0.0pp |