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 Frankland River, accounting for 25.2% (89 people). This share was higher than Cranbrook (S) (18.5%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which decreased by 1,672 people, while its share rose by 3.8 percentage points.
Section overview
Age structure - Service age groups
Frankland River - Total persons (Usual residence)
This table summarises service age groups for Frankland River in 2021 for persons, with comparison against Cranbrook (S) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Frankland River, with comparison markers for Cranbrook (S).
Babies and pre-schoolers (0 to 4)
2021 count
12
% of total
3.4%
Change from 2016
-0.8pp
12
3.4%
-0.8pp
Primary schoolers (5 to 11)
2021 count
33
% of total
9.3%
Change from 2016
+4.8pp
33
9.3%
+4.8pp
Secondary schoolers (12 to 17)
2021 count
4
% of total
1.1%
Change from 2016
-3.0pp
4
1.1%
-3.0pp
Tertiary education and independence (18 to 24)
2021 count
17
% of total
4.8%
Change from 2016
-3.0pp
17
4.8%
-3.0pp
Young workforce (25 to 34)
2021 count
36
% of total
10.2%
Change from 2016
-9.2pp
36
10.2%
-9.2pp
Parents and homebuilders (35 to 49)
2021 count
89
% of total
25.2%
Change from 2016
+3.8pp
89
25.2%
+3.8pp
Older workers and pre-retirees (50 to 59)
2021 count
68
% of total
19.3%
Change from 2016
+5.2pp
68
19.3%
+5.2pp
Empty nesters and retirees (60 to 69)
2021 count
55
% of total
15.6%
Change from 2016
+2.8pp
55
15.6%
+2.8pp
Seniors (70 to 84)
2021 count
28
% of total
7.9%
Change from 2016
-1.5pp
28
7.9%
-1.5pp
Elderly aged (85 and over)
2021 count
3
% of total
0.8%
Change from 2016
-1.5pp
3
0.8%
-1.5pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-331
-0.8pp
Primary schoolers (5 to 11)
-333
+4.8pp
Secondary schoolers (12 to 17)
-335
-3.0pp
Tertiary education and independence (18 to 24)
-620
-3.0pp
Young workforce (25 to 34)
-1,560
-9.2pp
Parents and homebuilders (35 to 49)
-1,672
+3.8pp
Older workers and pre-retirees (50 to 59)
-1,092
+5.2pp
Empty nesters and retirees (60 to 69)
-993
+2.8pp
Seniors (70 to 84)
-742
-1.5pp
Elderly aged (85 and over)
-183
-1.5pp
Data table
Service age groups for Frankland River. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Cranbrook (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Cranbrook (S)% | Count | % | Cranbrook (S)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 12 | 3.4% | 6.0% | 343 | 4.2% | 6.1% | -331 | -0.8pp |
| Primary schoolers (5 to 11) | 33 | 9.3% | 10.4% | 366 | 4.5% | 10.2% | -333 | +4.8pp |
| Secondary schoolers (12 to 17) | 4 | 1.1% | 7.3% | 339 | 4.1% | 6.2% | -335 | -3.0pp |
| Tertiary education and independence (18 to 24) | 17 | 4.8% | 6.0% | 637 | 7.8% | 3.8% | -620 | -3.0pp |
| Young workforce (25 to 34) | 36 | 10.2% | 9.0% | 1,596 | 19.4% | 10.4% | -1,560 | -9.2pp |
| Parents and homebuilders (35 to 49) | 89 | 25.2% | 18.5% | 1,761 | 21.4% | 21.3% | -1,672 | +3.8pp |
| Older workers and pre-retirees (50 to 59) | 68 | 19.3% | 14.7% | 1,160 | 14.1% | 16.3% | -1,092 | +5.2pp |
| Empty nesters and retirees (60 to 69) | 55 | 15.6% | 17.0% | 1,048 | 12.8% | 16.7% | -993 | +2.8pp |
| Seniors (70 to 84) | 28 | 7.9% | 13.2% | 770 | 9.4% | 11.8% | -742 | -1.5pp |
| Elderly aged (85 and over) | 3 | 0.8% | 1.1% | 186 | 2.3% | 1.0% | -183 | -1.5pp |
| Total | 353 | 100.0% | 100.0% | 8,211 | 100.0% | 100.0% | -7,858 | 0.0pp |