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 Eden Hills, accounting for 19.1% (577 people). This share was lower than Mitcham (C) (19.9%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 75 people and 2.4 percentage points.
Section overview
Age structure - Service age groups
Eden Hills - Total persons (Usual residence)
This table summarises service age groups for Eden Hills in 2021 for persons, with comparison against Mitcham (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Eden Hills, with comparison markers for Mitcham (C).
Babies and pre-schoolers (0 to 4)
2021 count
126
% of total
4.2%
Change from 2016
-0.2pp
126
4.2%
-0.2pp
Primary schoolers (5 to 11)
2021 count
262
% of total
8.7%
Change from 2016
-0.3pp
262
8.7%
-0.3pp
Secondary schoolers (12 to 17)
2021 count
242
% of total
8.0%
Change from 2016
0.0pp
242
8.0%
0.0pp
Tertiary education and independence (18 to 24)
2021 count
281
% of total
9.3%
Change from 2016
-1.7pp
281
9.3%
-1.7pp
Young workforce (25 to 34)
2021 count
302
% of total
10.0%
Change from 2016
+1.3pp
302
10.0%
+1.3pp
Parents and homebuilders (35 to 49)
2021 count
577
% of total
19.1%
Change from 2016
-1.3pp
577
19.1%
-1.3pp
Older workers and pre-retirees (50 to 59)
2021 count
440
% of total
14.6%
Change from 2016
+0.1pp
440
14.6%
+0.1pp
Empty nesters and retirees (60 to 69)
2021 count
347
% of total
11.5%
Change from 2016
-0.8pp
347
11.5%
-0.8pp
Seniors (70 to 84)
2021 count
364
% of total
12.1%
Change from 2016
+2.4pp
364
12.1%
+2.4pp
Elderly aged (85 and over)
2021 count
73
% of total
2.4%
Change from 2016
+0.4pp
73
2.4%
+0.4pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-6
-0.2pp
Primary schoolers (5 to 11)
-5
-0.3pp
Secondary schoolers (12 to 17)
+4
0.0pp
Tertiary education and independence (18 to 24)
-46
-1.7pp
Young workforce (25 to 34)
+43
+1.3pp
Parents and homebuilders (35 to 49)
-30
-1.3pp
Older workers and pre-retirees (50 to 59)
+8
+0.1pp
Empty nesters and retirees (60 to 69)
-21
-0.8pp
Seniors (70 to 84)
+75
+2.4pp
Elderly aged (85 and over)
+14
+0.4pp
Data table
Service age groups for Eden Hills. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Mitcham (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mitcham (C)% | Count | % | Mitcham (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 126 | 4.2% | 4.9% | 132 | 4.4% | 5.3% | -6 | -0.2pp |
| Primary schoolers (5 to 11) | 262 | 8.7% | 8.4% | 267 | 9.0% | 8.6% | -5 | -0.3pp |
| Secondary schoolers (12 to 17) | 242 | 8.0% | 7.7% | 238 | 8.0% | 7.5% | +4 | 0.0pp |
| Tertiary education and independence (18 to 24) | 281 | 9.3% | 8.6% | 327 | 11.0% | 9.1% | -46 | -1.7pp |
| Young workforce (25 to 34) | 302 | 10.0% | 10.5% | 259 | 8.7% | 10.7% | +43 | +1.3pp |
| Parents and homebuilders (35 to 49) | 577 | 19.1% | 19.9% | 607 | 20.4% | 20.0% | -30 | -1.3pp |
| Older workers and pre-retirees (50 to 59) | 440 | 14.6% | 12.9% | 432 | 14.5% | 13.4% | +8 | +0.1pp |
| Empty nesters and retirees (60 to 69) | 347 | 11.5% | 11.5% | 368 | 12.3% | 11.5% | -21 | -0.8pp |
| Seniors (70 to 84) | 364 | 12.1% | 12.2% | 289 | 9.7% | 10.4% | +75 | +2.4pp |
| Elderly aged (85 and over) | 73 | 2.4% | 3.3% | 59 | 2.0% | 3.4% | +14 | +0.4pp |
| Total | 3,020 | 100.0% | 100.0% | 2,981 | 100.0% | 100.0% | +39 | 0.0pp |