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 Telopea, accounting for 23.2% (1,243 people). This share was lower than Parramatta (C) (23.8%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 1,211 people and 10.5 percentage points.
Section overview
Age structure - Service age groups
Telopea - Total persons (Usual residence)
This table summarises service age groups for Telopea in 2021 for persons, with comparison against Parramatta (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Telopea, with comparison markers for Parramatta (C).
Babies and pre-schoolers (0 to 4)
2021 count
303
% of total
5.7%
Change from 2016
+2.9pp
303
5.7%
+2.9pp
Primary schoolers (5 to 11)
2021 count
478
% of total
8.9%
Change from 2016
+4.1pp
478
8.9%
+4.1pp
Secondary schoolers (12 to 17)
2021 count
328
% of total
6.1%
Change from 2016
-3.8pp
328
6.1%
-3.8pp
Tertiary education and independence (18 to 24)
2021 count
361
% of total
6.7%
Change from 2016
+2.7pp
361
6.7%
+2.7pp
Young workforce (25 to 34)
2021 count
675
% of total
12.6%
Change from 2016
+9.0pp
675
12.6%
+9.0pp
Parents and homebuilders (35 to 49)
2021 count
1,243
% of total
23.2%
Change from 2016
+10.5pp
1,243
23.2%
+10.5pp
Older workers and pre-retirees (50 to 59)
2021 count
746
% of total
13.9%
Change from 2016
-13.9pp
746
13.9%
-13.9pp
Empty nesters and retirees (60 to 69)
2021 count
635
% of total
11.9%
Change from 2016
-11.1pp
635
11.9%
-11.1pp
Seniors (70 to 84)
2021 count
457
% of total
8.5%
Change from 2016
+5.3pp
457
8.5%
+5.3pp
Elderly aged (85 and over)
2021 count
134
% of total
2.5%
Change from 2016
+2.5pp
134
2.5%
+2.5pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+296
+2.9pp
Primary schoolers (5 to 11)
+466
+4.1pp
Secondary schoolers (12 to 17)
+303
-3.8pp
Tertiary education and independence (18 to 24)
+351
+2.7pp
Young workforce (25 to 34)
+666
+9.0pp
Parents and homebuilders (35 to 49)
+1,211
+10.5pp
Older workers and pre-retirees (50 to 59)
+676
-13.9pp
Empty nesters and retirees (60 to 69)
+577
-11.1pp
Seniors (70 to 84)
+449
+5.3pp
Elderly aged (85 and over)
+134
+2.5pp
Data table
Service age groups for Telopea. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Parramatta (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Parramatta (C)% | Count | % | Parramatta (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 303 | 5.7% | 6.2% | 7 | 2.8% | 7.3% | +296 | +2.9pp |
| Primary schoolers (5 to 11) | 478 | 8.9% | 8.8% | 12 | 4.8% | 8.2% | +466 | +4.1pp |
| Secondary schoolers (12 to 17) | 328 | 6.1% | 5.8% | 25 | 9.9% | 5.9% | +303 | -3.8pp |
| Tertiary education and independence (18 to 24) | 361 | 6.7% | 8.4% | 10 | 4.0% | 8.7% | +351 | +2.7pp |
| Young workforce (25 to 34) | 675 | 12.6% | 19.4% | 9 | 3.6% | 20.2% | +666 | +9.0pp |
| Parents and homebuilders (35 to 49) | 1,243 | 23.2% | 23.8% | 32 | 12.7% | 21.9% | +1,211 | +10.5pp |
| Older workers and pre-retirees (50 to 59) | 746 | 13.9% | 10.3% | 70 | 27.8% | 11.1% | +676 | -13.9pp |
| Empty nesters and retirees (60 to 69) | 635 | 11.9% | 8.6% | 58 | 23.0% | 8.4% | +577 | -11.1pp |
| Seniors (70 to 84) | 457 | 8.5% | 7.0% | 8 | 3.2% | 6.7% | +449 | +5.3pp |
| Elderly aged (85 and over) | 134 | 2.5% | 1.6% | 0 | 0.0% | 1.7% | +134 | +2.5pp |
| Total | 5,356 | 100.0% | 100.0% | 252 | 100.0% | 100.0% | +5,104 | 0.0pp |