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 Safety Bay, accounting for 18.1% (1,387 people). This share was lower than Rockingham (C) (20.1%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 140 people and 1.5 percentage points.
Section overview
Age structure - Service age groups
Safety Bay - Total persons (Usual residence)
This table summarises service age groups for Safety Bay in 2021 for persons, with comparison against Rockingham (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Safety Bay, with comparison markers for Rockingham (C).
Babies and pre-schoolers (0 to 4)
2021 count
405
% of total
5.3%
Change from 2016
-0.6pp
405
5.3%
-0.6pp
Primary schoolers (5 to 11)
2021 count
668
% of total
8.7%
Change from 2016
+0.5pp
668
8.7%
+0.5pp
Secondary schoolers (12 to 17)
2021 count
532
% of total
6.9%
Change from 2016
+0.5pp
532
6.9%
+0.5pp
Tertiary education and independence (18 to 24)
2021 count
454
% of total
5.9%
Change from 2016
-1.5pp
454
5.9%
-1.5pp
Young workforce (25 to 34)
2021 count
843
% of total
11.0%
Change from 2016
+0.2pp
843
11.0%
+0.2pp
Parents and homebuilders (35 to 49)
2021 count
1,387
% of total
18.1%
Change from 2016
-0.1pp
1,387
18.1%
-0.1pp
Older workers and pre-retirees (50 to 59)
2021 count
1,033
% of total
13.5%
Change from 2016
-0.9pp
1,033
13.5%
-0.9pp
Empty nesters and retirees (60 to 69)
2021 count
1,065
% of total
13.9%
Change from 2016
+0.1pp
1,065
13.9%
+0.1pp
Seniors (70 to 84)
2021 count
1,054
% of total
13.8%
Change from 2016
+1.5pp
1,054
13.8%
+1.5pp
Elderly aged (85 and over)
2021 count
219
% of total
2.9%
Change from 2016
+0.3pp
219
2.9%
+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)
-33
-0.6pp
Primary schoolers (5 to 11)
+56
+0.5pp
Secondary schoolers (12 to 17)
+53
+0.5pp
Tertiary education and independence (18 to 24)
-99
-1.5pp
Young workforce (25 to 34)
+39
+0.2pp
Parents and homebuilders (35 to 49)
+32
-0.1pp
Older workers and pre-retirees (50 to 59)
-40
-0.9pp
Empty nesters and retirees (60 to 69)
+38
+0.1pp
Seniors (70 to 84)
+140
+1.5pp
Elderly aged (85 and over)
+23
+0.3pp
Data table
Service age groups for Safety Bay. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Rockingham (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Rockingham (C)% | Count | % | Rockingham (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 405 | 5.3% | 6.7% | 438 | 5.9% | 7.5% | -33 | -0.6pp |
| Primary schoolers (5 to 11) | 668 | 8.7% | 10.4% | 612 | 8.2% | 10.7% | +56 | +0.5pp |
| Secondary schoolers (12 to 17) | 532 | 6.9% | 8.6% | 479 | 6.4% | 8.1% | +53 | +0.5pp |
| Tertiary education and independence (18 to 24) | 454 | 5.9% | 8.4% | 553 | 7.4% | 9.3% | -99 | -1.5pp |
| Young workforce (25 to 34) | 843 | 11.0% | 13.5% | 804 | 10.8% | 14.6% | +39 | +0.2pp |
| Parents and homebuilders (35 to 49) | 1,387 | 18.1% | 20.1% | 1,355 | 18.2% | 20.8% | +32 | -0.1pp |
| Older workers and pre-retirees (50 to 59) | 1,033 | 13.5% | 12.8% | 1,073 | 14.4% | 12.1% | -40 | -0.9pp |
| Empty nesters and retirees (60 to 69) | 1,065 | 13.9% | 9.5% | 1,027 | 13.8% | 8.4% | +38 | +0.1pp |
| Seniors (70 to 84) | 1,054 | 13.8% | 8.3% | 914 | 12.3% | 7.0% | +140 | +1.5pp |
| Elderly aged (85 and over) | 219 | 2.9% | 1.5% | 196 | 2.6% | 1.4% | +23 | +0.3pp |
| Total | 7,662 | 100.0% | 100.0% | 7,442 | 100.0% | 100.0% | +220 | 0.0pp |