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 Kent (S), accounting for 25.9% (127 people). This share was higher than Regional WA (19.9%). Since 2016, the biggest change was in Empty nesters and retirees (60 to 69), which decreased by 48 people and 7.7 percentage points.
Section overview
Age structure - Service age groups
Kent (S) - Total persons (Usual residence)
This table summarises service age groups for Kent (S) in 2021 for persons, with comparison against Regional WA and change since 2016.
Chart view
Age structure - Service age groups snapshot
2021 distribution by category for Kent (S), with comparison markers for Regional WA.
Babies and pre-schoolers (0 to 4)
2021 count
44
% of total
9.0%
Change from 2016
-1.4pp
44
9.0%
-1.4pp
Primary schoolers (5 to 11)
2021 count
67
% of total
13.6%
Change from 2016
+3.2pp
67
13.6%
+3.2pp
Secondary schoolers (12 to 17)
2021 count
25
% of total
5.1%
Change from 2016
+2.2pp
25
5.1%
+2.2pp
Tertiary education and independence (18 to 24)
2021 count
31
% of total
6.3%
Change from 2016
+2.0pp
31
6.3%
+2.0pp
Young workforce (25 to 34)
2021 count
65
% of total
13.2%
Change from 2016
+2.6pp
65
13.2%
+2.6pp
Parents and homebuilders (35 to 49)
2021 count
127
% of total
25.9%
Change from 2016
+1.7pp
127
25.9%
+1.7pp
Older workers and pre-retirees (50 to 59)
2021 count
75
% of total
15.3%
Change from 2016
+2.6pp
75
15.3%
+2.6pp
Empty nesters and retirees (60 to 69)
2021 count
35
% of total
7.1%
Change from 2016
-7.7pp
35
7.1%
-7.7pp
Seniors (70 to 84)
2021 count
34
% of total
6.9%
Change from 2016
+1.2pp
34
6.9%
+1.2pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
-0.5pp
0
0.0%
-0.5pp
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-14
-1.4pp
Primary schoolers (5 to 11)
+9
+3.2pp
Secondary schoolers (12 to 17)
+9
+2.2pp
Tertiary education and independence (18 to 24)
+7
+2.0pp
Young workforce (25 to 34)
+6
+2.6pp
Parents and homebuilders (35 to 49)
-8
+1.7pp
Older workers and pre-retirees (50 to 59)
+4
+2.6pp
Empty nesters and retirees (60 to 69)
-48
-7.7pp
Seniors (70 to 84)
+2
+1.2pp
Elderly aged (85 and over)
-3
-0.5pp
Data table
Service age groups for Kent (S). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional WA% | Count | % | Regional WA% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 44 | 9.0% | 6.0% | 58 | 10.4% | 6.6% | -14 | -1.4pp |
| Primary schoolers (5 to 11) | 67 | 13.6% | 9.5% | 58 | 10.4% | 9.8% | +9 | +3.2pp |
| Secondary schoolers (12 to 17) | 25 | 5.1% | 7.6% | 16 | 2.9% | 7.4% | +9 | +2.2pp |
| Tertiary education and independence (18 to 24) | 31 | 6.3% | 6.7% | 24 | 4.3% | 7.0% | +7 | +2.0pp |
| Young workforce (25 to 34) | 65 | 13.2% | 12.5% | 59 | 10.6% | 13.6% | +6 | +2.6pp |
| Parents and homebuilders (35 to 49) | 127 | 25.9% | 19.9% | 135 | 24.2% | 20.8% | -8 | +1.7pp |
| Older workers and pre-retirees (50 to 59) | 75 | 15.3% | 13.7% | 71 | 12.7% | 14.1% | +4 | +2.6pp |
| Empty nesters and retirees (60 to 69) | 35 | 7.1% | 12.4% | 83 | 14.8% | 11.3% | -48 | -7.7pp |
| Seniors (70 to 84) | 34 | 6.9% | 10.1% | 32 | 5.7% | 7.8% | +2 | +1.2pp |
| Elderly aged (85 and over) | 0 | 0.0% | 1.7% | 3 | 0.5% | 1.5% | -3 | -0.5pp |
| Total | 491 | 100.0% | 100.0% | 559 | 100.0% | 100.0% | -68 | 0.0pp |