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, Young workforce (25 to 34) was the most common category among residents in Sydney Olympic Park (part), accounting for 40.9% (1,985 people). This share was higher than Parramatta (C) (19.4%). Since 2016, the biggest change was in Young workforce (25 to 34), which increased by 1,252 people, while its share fell by 1.2 percentage points.
Section overview
Age structure - Service age groups
Sydney Olympic Park (part) - Total persons (Usual residence)
This table summarises service age groups for Sydney Olympic Park (part) in 2021 for persons, with comparison against Parramatta (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Sydney Olympic Park (part), with comparison markers for Parramatta (C).
Babies and pre-schoolers (0 to 4)
2021 count
392
% of total
8.1%
Change from 2016
+1.9pp
392
8.1%
+1.9pp
Primary schoolers (5 to 11)
2021 count
184
% of total
3.8%
Change from 2016
+1.8pp
184
3.8%
+1.8pp
Secondary schoolers (12 to 17)
2021 count
89
% of total
1.8%
Change from 2016
-0.5pp
89
1.8%
-0.5pp
Tertiary education and independence (18 to 24)
2021 count
391
% of total
8.1%
Change from 2016
-6.0pp
391
8.1%
-6.0pp
Young workforce (25 to 34)
2021 count
1,985
% of total
40.9%
Change from 2016
-1.2pp
1,985
40.9%
-1.2pp
Parents and homebuilders (35 to 49)
2021 count
1,192
% of total
24.6%
Change from 2016
+3.8pp
1,192
24.6%
+3.8pp
Older workers and pre-retirees (50 to 59)
2021 count
311
% of total
6.4%
Change from 2016
-1.5pp
311
6.4%
-1.5pp
Empty nesters and retirees (60 to 69)
2021 count
201
% of total
4.1%
Change from 2016
+0.5pp
201
4.1%
+0.5pp
Seniors (70 to 84)
2021 count
69
% of total
1.4%
Change from 2016
+0.8pp
69
1.4%
+0.8pp
Elderly aged (85 and over)
2021 count
9
% of total
0.2%
Change from 2016
0.0pp
9
0.2%
0.0pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+284
+1.9pp
Primary schoolers (5 to 11)
+149
+1.8pp
Secondary schoolers (12 to 17)
+49
-0.5pp
Tertiary education and independence (18 to 24)
+145
-6.0pp
Young workforce (25 to 34)
+1,252
-1.2pp
Parents and homebuilders (35 to 49)
+830
+3.8pp
Older workers and pre-retirees (50 to 59)
+173
-1.5pp
Empty nesters and retirees (60 to 69)
+138
+0.5pp
Seniors (70 to 84)
+59
+0.8pp
Elderly aged (85 and over)
+6
0.0pp
Data table
Service age groups for Sydney Olympic Park (part). 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) | 392 | 8.1% | 6.2% | 108 | 6.2% | 7.3% | +284 | +1.9pp |
| Primary schoolers (5 to 11) | 184 | 3.8% | 8.8% | 35 | 2.0% | 8.2% | +149 | +1.8pp |
| Secondary schoolers (12 to 17) | 89 | 1.8% | 5.8% | 40 | 2.3% | 5.9% | +49 | -0.5pp |
| Tertiary education and independence (18 to 24) | 391 | 8.1% | 8.4% | 246 | 14.1% | 8.7% | +145 | -6.0pp |
| Young workforce (25 to 34) | 1,985 | 40.9% | 19.4% | 733 | 42.1% | 20.2% | +1,252 | -1.2pp |
| Parents and homebuilders (35 to 49) | 1,192 | 24.6% | 23.8% | 362 | 20.8% | 21.9% | +830 | +3.8pp |
| Older workers and pre-retirees (50 to 59) | 311 | 6.4% | 10.3% | 138 | 7.9% | 11.1% | +173 | -1.5pp |
| Empty nesters and retirees (60 to 69) | 201 | 4.1% | 8.6% | 63 | 3.6% | 8.4% | +138 | +0.5pp |
| Seniors (70 to 84) | 69 | 1.4% | 7.0% | 10 | 0.6% | 6.7% | +59 | +0.8pp |
| Elderly aged (85 and over) | 9 | 0.2% | 1.6% | 3 | 0.2% | 1.7% | +6 | 0.0pp |
| Total | 4,848 | 100.0% | 100.0% | 1,742 | 100.0% | 100.0% | +3,106 | 0.0pp |