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 Yorkeys Knob, accounting for 20.8% (581 people). This share was similar to Cairns (R) (20.9%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 121 people and 4.2 percentage points.
Section overview
Age structure - Service age groups
Yorkeys Knob - Total persons (Usual residence)
This table summarises service age groups for Yorkeys Knob in 2021 for persons, with comparison against Cairns (R) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Yorkeys Knob, with comparison markers for Cairns (R).
Babies and pre-schoolers (0 to 4)
2021 count
112
% of total
4.0%
Change from 2016
-0.1pp
112
4.0%
-0.1pp
Primary schoolers (5 to 11)
2021 count
190
% of total
6.8%
Change from 2016
-0.2pp
190
6.8%
-0.2pp
Secondary schoolers (12 to 17)
2021 count
160
% of total
5.7%
Change from 2016
+0.7pp
160
5.7%
+0.7pp
Tertiary education and independence (18 to 24)
2021 count
154
% of total
5.5%
Change from 2016
-2.4pp
154
5.5%
-2.4pp
Young workforce (25 to 34)
2021 count
345
% of total
12.3%
Change from 2016
-1.0pp
345
12.3%
-1.0pp
Parents and homebuilders (35 to 49)
2021 count
581
% of total
20.8%
Change from 2016
+0.2pp
581
20.8%
+0.2pp
Older workers and pre-retirees (50 to 59)
2021 count
417
% of total
14.9%
Change from 2016
-1.9pp
417
14.9%
-1.9pp
Empty nesters and retirees (60 to 69)
2021 count
428
% of total
15.3%
Change from 2016
+0.7pp
428
15.3%
+0.7pp
Seniors (70 to 84)
2021 count
358
% of total
12.8%
Change from 2016
+4.2pp
358
12.8%
+4.2pp
Elderly aged (85 and over)
2021 count
36
% of total
1.3%
Change from 2016
+0.3pp
36
1.3%
+0.3pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-2
-0.1pp
Primary schoolers (5 to 11)
-3
-0.2pp
Secondary schoolers (12 to 17)
+23
+0.7pp
Tertiary education and independence (18 to 24)
-65
-2.4pp
Young workforce (25 to 34)
-23
-1.0pp
Parents and homebuilders (35 to 49)
+13
+0.2pp
Older workers and pre-retirees (50 to 59)
-46
-1.9pp
Empty nesters and retirees (60 to 69)
+26
+0.7pp
Seniors (70 to 84)
+121
+4.2pp
Elderly aged (85 and over)
+9
+0.3pp
Data table
Service age groups for Yorkeys Knob. 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) | 112 | 4.0% | 5.5% | 114 | 4.1% | 6.5% | -2 | -0.1pp |
| Primary schoolers (5 to 11) | 190 | 6.8% | 9.2% | 193 | 7.0% | 9.9% | -3 | -0.2pp |
| Secondary schoolers (12 to 17) | 160 | 5.7% | 8.3% | 137 | 5.0% | 8.1% | +23 | +0.7pp |
| Tertiary education and independence (18 to 24) | 154 | 5.5% | 7.7% | 219 | 7.9% | 8.0% | -65 | -2.4pp |
| Young workforce (25 to 34) | 345 | 12.3% | 13.2% | 368 | 13.3% | 13.6% | -23 | -1.0pp |
| Parents and homebuilders (35 to 49) | 581 | 20.8% | 20.9% | 568 | 20.6% | 21.9% | +13 | +0.2pp |
| Older workers and pre-retirees (50 to 59) | 417 | 14.9% | 13.6% | 463 | 16.8% | 13.6% | -46 | -1.9pp |
| Empty nesters and retirees (60 to 69) | 428 | 15.3% | 11.2% | 402 | 14.6% | 10.4% | +26 | +0.7pp |
| Seniors (70 to 84) | 358 | 12.8% | 8.8% | 237 | 8.6% | 6.6% | +121 | +4.2pp |
| Elderly aged (85 and over) | 36 | 1.3% | 1.5% | 27 | 1.0% | 1.3% | +9 | +0.3pp |
| Total | 2,794 | 100.0% | 100.0% | 2,759 | 100.0% | 100.0% | +35 | 0.0pp |