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 Redland Bay, accounting for 19.9% (3,396 people). This share was higher than Redland (C) (19.1%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 526 people and 2 percentage points.
Section overview
Age structure - Service age groups
Redland Bay - Total persons (Usual residence)
This table summarises service age groups for Redland Bay in 2021 for persons, with comparison against Redland (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Redland Bay, with comparison markers for Redland (C).
Babies and pre-schoolers (0 to 4)
2021 count
958
% of total
5.6%
Change from 2016
-0.4pp
958
5.6%
-0.4pp
Primary schoolers (5 to 11)
2021 count
1,643
% of total
9.6%
Change from 2016
-1.7pp
1,643
9.6%
-1.7pp
Secondary schoolers (12 to 17)
2021 count
1,494
% of total
8.8%
Change from 2016
-0.1pp
1,494
8.8%
-0.1pp
Tertiary education and independence (18 to 24)
2021 count
1,411
% of total
8.3%
Change from 2016
+0.6pp
1,411
8.3%
+0.6pp
Young workforce (25 to 34)
2021 count
1,801
% of total
10.6%
Change from 2016
+0.4pp
1,801
10.6%
+0.4pp
Parents and homebuilders (35 to 49)
2021 count
3,396
% of total
19.9%
Change from 2016
-1.9pp
3,396
19.9%
-1.9pp
Older workers and pre-retirees (50 to 59)
2021 count
2,371
% of total
13.9%
Change from 2016
+0.7pp
2,371
13.9%
+0.7pp
Empty nesters and retirees (60 to 69)
2021 count
1,962
% of total
11.5%
Change from 2016
+0.1pp
1,962
11.5%
+0.1pp
Seniors (70 to 84)
2021 count
1,746
% of total
10.2%
Change from 2016
+2.0pp
1,746
10.2%
+2.0pp
Elderly aged (85 and over)
2021 count
234
% of total
1.4%
Change from 2016
+0.1pp
234
1.4%
+0.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+60
-0.4pp
Primary schoolers (5 to 11)
-47
-1.7pp
Secondary schoolers (12 to 17)
+157
-0.1pp
Tertiary education and independence (18 to 24)
+259
+0.6pp
Young workforce (25 to 34)
+268
+0.4pp
Parents and homebuilders (35 to 49)
+139
-1.9pp
Older workers and pre-retirees (50 to 59)
+397
+0.7pp
Empty nesters and retirees (60 to 69)
+257
+0.1pp
Seniors (70 to 84)
+526
+2.0pp
Elderly aged (85 and over)
+41
+0.1pp
Data table
Service age groups for Redland Bay. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Redland (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Redland (C)% | Count | % | Redland (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 958 | 5.6% | 5.1% | 898 | 6.0% | 5.5% | +60 | -0.4pp |
| Primary schoolers (5 to 11) | 1,643 | 9.6% | 8.6% | 1,690 | 11.3% | 9.2% | -47 | -1.7pp |
| Secondary schoolers (12 to 17) | 1,494 | 8.8% | 8.0% | 1,337 | 8.9% | 8.1% | +157 | -0.1pp |
| Tertiary education and independence (18 to 24) | 1,411 | 8.3% | 7.5% | 1,152 | 7.7% | 8.1% | +259 | +0.6pp |
| Young workforce (25 to 34) | 1,801 | 10.6% | 10.1% | 1,533 | 10.2% | 10.7% | +268 | +0.4pp |
| Parents and homebuilders (35 to 49) | 3,396 | 19.9% | 19.1% | 3,257 | 21.8% | 19.7% | +139 | -1.9pp |
| Older workers and pre-retirees (50 to 59) | 2,371 | 13.9% | 13.8% | 1,974 | 13.2% | 14.4% | +397 | +0.7pp |
| Empty nesters and retirees (60 to 69) | 1,962 | 11.5% | 13.1% | 1,705 | 11.4% | 12.4% | +257 | +0.1pp |
| Seniors (70 to 84) | 1,746 | 10.2% | 12.3% | 1,220 | 8.2% | 9.6% | +526 | +2.0pp |
| Elderly aged (85 and over) | 234 | 1.4% | 2.4% | 193 | 1.3% | 2.2% | +41 | +0.1pp |
| Total | 17,056 | 100.0% | 100.0% | 14,958 | 100.0% | 100.0% | +2,098 | 0.0pp |