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, Empty nesters and retirees (60 to 69) was the most common category among residents in Diamond Beach, accounting for 21% (213 people). This share was higher than Mid-Coast (A) (17.9%). Since 2016, the biggest change was in Empty nesters and retirees (60 to 69), which increased by 201 people, while its share fell by 6.3 percentage points.
Section overview
Age structure - Service age groups
Diamond Beach - Total persons (Usual residence)
This table summarises service age groups for Diamond Beach in 2021 for persons, with comparison against Mid-Coast (A) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Diamond Beach, with comparison markers for Mid-Coast (A).
Babies and pre-schoolers (0 to 4)
2021 count
35
% of total
3.5%
Change from 2016
+3.5pp
35
3.5%
+3.5pp
Primary schoolers (5 to 11)
2021 count
95
% of total
9.4%
Change from 2016
+9.4pp
95
9.4%
+9.4pp
Secondary schoolers (12 to 17)
2021 count
81
% of total
8.0%
Change from 2016
+8.0pp
81
8.0%
+8.0pp
Tertiary education and independence (18 to 24)
2021 count
28
% of total
2.8%
Change from 2016
+2.8pp
28
2.8%
+2.8pp
Young workforce (25 to 34)
2021 count
93
% of total
9.2%
Change from 2016
+9.2pp
93
9.2%
+9.2pp
Parents and homebuilders (35 to 49)
2021 count
165
% of total
16.3%
Change from 2016
+2.7pp
165
16.3%
+2.7pp
Older workers and pre-retirees (50 to 59)
2021 count
143
% of total
14.1%
Change from 2016
-6.4pp
143
14.1%
-6.4pp
Empty nesters and retirees (60 to 69)
2021 count
213
% of total
21.0%
Change from 2016
-6.3pp
213
21.0%
-6.3pp
Seniors (70 to 84)
2021 count
137
% of total
13.5%
Change from 2016
+13.5pp
137
13.5%
+13.5pp
Elderly aged (85 and over)
2021 count
21
% of total
2.1%
Change from 2016
+2.1pp
21
2.1%
+2.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+35
+3.5pp
Primary schoolers (5 to 11)
+95
+9.4pp
Secondary schoolers (12 to 17)
+81
+8.0pp
Tertiary education and independence (18 to 24)
+28
+2.8pp
Young workforce (25 to 34)
+93
+9.2pp
Parents and homebuilders (35 to 49)
+159
+2.7pp
Older workers and pre-retirees (50 to 59)
+134
-6.4pp
Empty nesters and retirees (60 to 69)
+201
-6.3pp
Seniors (70 to 84)
+137
+13.5pp
Elderly aged (85 and over)
+21
+2.1pp
Data table
Service age groups for Diamond Beach. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Mid-Coast (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mid-Coast (A)% | Count | % | Mid-Coast (A)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 35 | 3.5% | 4.1% | 0 | 0.0% | 4.6% | +35 | +3.5pp |
| Primary schoolers (5 to 11) | 95 | 9.4% | 7.1% | 0 | 0.0% | 7.6% | +95 | +9.4pp |
| Secondary schoolers (12 to 17) | 81 | 8.0% | 6.5% | 0 | 0.0% | 6.8% | +81 | +8.0pp |
| Tertiary education and independence (18 to 24) | 28 | 2.8% | 5.3% | 0 | 0.0% | 5.6% | +28 | +2.8pp |
| Young workforce (25 to 34) | 93 | 9.2% | 7.9% | 0 | 0.0% | 7.4% | +93 | +9.2pp |
| Parents and homebuilders (35 to 49) | 165 | 16.3% | 14.0% | 6 | 13.6% | 15.0% | +159 | +2.7pp |
| Older workers and pre-retirees (50 to 59) | 143 | 14.1% | 13.2% | 9 | 20.5% | 14.5% | +134 | -6.4pp |
| Empty nesters and retirees (60 to 69) | 213 | 21.0% | 17.9% | 12 | 27.3% | 17.7% | +201 | -6.3pp |
| Seniors (70 to 84) | 137 | 13.5% | 20.1% | 0 | 0.0% | 17.0% | +137 | +13.5pp |
| Elderly aged (85 and over) | 21 | 2.1% | 4.0% | 0 | 0.0% | 3.8% | +21 | +2.1pp |
| Total | 1,012 | 100.0% | 100.0% | 44 | 100.0% | 100.0% | +968 | 0.0pp |