Population
Five year age groups
About this topic
Five year age groups show the population in standard five-year cohorts from early childhood through older age. Because each band covers the same span of years, the topic gives a clear and comparable view of an area's age structure.
This topic is useful for identifying growth or decline in specific cohorts and for comparing age patterns across places and over time. For service planning, it is often read together with service age groups, household types, and dwelling types.
Interpretation notes
- Age is reported as at Census night, so the counts are a snapshot of the resident age structure at that point in time.
- Because each band covers the same five-year span, this topic is best for exact cohort comparison rather than service-planning life stages.
Related topics
Key insight
In 2021, 30 to 34 year olds was the largest age group among residents in Sydney Olympic Park (part), accounting for 22.4% (1,086 people). This share was higher than Parramatta (C) (10.3%). Since 2016, the biggest change was in 30 to 34 year olds, which increased by 685 people, while its share fell by 0.6 percentage points.
Section overview
Age structure - Five year age groups
Sydney Olympic Park (part) - Total persons (Usual residence)
This table summarises five year age groups for Sydney Olympic Park (part) in 2021 for persons, with comparison against Parramatta (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Sydney Olympic Park (part), with comparison markers for Parramatta (C).
0 to 4
2021 count
392
% of total
8.1%
Change from 2016
+1.9pp
392
8.1%
+1.9pp
5 to 9
2021 count
144
% of total
3.0%
Change from 2016
+1.4pp
144
3.0%
+1.4pp
10 to 14
2021 count
74
% of total
1.5%
Change from 2016
+0.3pp
74
1.5%
+0.3pp
15 to 19
2021 count
90
% of total
1.9%
Change from 2016
-1.8pp
90
1.9%
-1.8pp
20 to 24
2021 count
356
% of total
7.3%
Change from 2016
-4.6pp
356
7.3%
-4.6pp
25 to 29
2021 count
899
% of total
18.5%
Change from 2016
-0.6pp
899
18.5%
-0.6pp
30 to 34
2021 count
1,086
% of total
22.4%
Change from 2016
-0.6pp
1,086
22.4%
-0.6pp
35 to 39
2021 count
705
% of total
14.5%
Change from 2016
+3.6pp
705
14.5%
+3.6pp
40 to 44
2021 count
308
% of total
6.4%
Change from 2016
+1.6pp
308
6.4%
+1.6pp
45 to 49
2021 count
179
% of total
3.7%
Change from 2016
-1.4pp
179
3.7%
-1.4pp
50 to 54
2021 count
159
% of total
3.3%
Change from 2016
-1.8pp
159
3.3%
-1.8pp
55 to 59
2021 count
152
% of total
3.1%
Change from 2016
+0.3pp
152
3.1%
+0.3pp
60 to 64
2021 count
107
% of total
2.2%
Change from 2016
-0.1pp
107
2.2%
-0.1pp
65 to 69
2021 count
94
% of total
1.9%
Change from 2016
+0.5pp
94
1.9%
+0.5pp
70 to 74
2021 count
40
% of total
0.8%
Change from 2016
+0.4pp
40
0.8%
+0.4pp
75 to 79
2021 count
21
% of total
0.4%
Change from 2016
+0.4pp
21
0.4%
+0.4pp
80 to 84
2021 count
8
% of total
0.2%
Change from 2016
0.0pp
8
0.2%
0.0pp
85 and over
2021 count
9
% of total
0.2%
Change from 2016
0.0pp
9
0.2%
0.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+284
+1.9pp
5 to 9
+116
+1.4pp
10 to 14
+53
+0.3pp
15 to 19
+25
-1.8pp
20 to 24
+149
-4.6pp
25 to 29
+566
-0.6pp
30 to 34
+685
-0.6pp
35 to 39
+516
+3.6pp
40 to 44
+224
+1.6pp
45 to 49
+91
-1.4pp
50 to 54
+71
-1.8pp
55 to 59
+103
+0.3pp
60 to 64
+68
-0.1pp
65 to 69
+70
+0.5pp
70 to 74
+33
+0.4pp
75 to 79
+21
+0.4pp
80 to 84
+5
0.0pp
85 and over
+6
0.0pp
Data table
Five year age groups for Sydney Olympic Park (part). Age structure - Five year 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 | |
| 0 to 4 | 392 | 8.1% | 6.2% | 108 | 6.2% | 7.3% | +284 | +1.9pp |
| 5 to 9 | 144 | 3.0% | 6.5% | 28 | 1.6% | 6.2% | +116 | +1.4pp |
| 10 to 14 | 74 | 1.5% | 5.4% | 21 | 1.2% | 4.9% | +53 | +0.3pp |
| 15 to 19 | 90 | 1.9% | 4.5% | 65 | 3.7% | 5.1% | +25 | -1.8pp |
| 20 to 24 | 356 | 7.3% | 6.6% | 207 | 11.9% | 6.6% | +149 | -4.6pp |
| 25 to 29 | 899 | 18.5% | 9.1% | 333 | 19.1% | 9.2% | +566 | -0.6pp |
| 30 to 34 | 1,086 | 22.4% | 10.3% | 401 | 23.0% | 11.1% | +685 | -0.6pp |
| 35 to 39 | 705 | 14.5% | 10.2% | 189 | 10.9% | 8.8% | +516 | +3.6pp |
| 40 to 44 | 308 | 6.4% | 7.5% | 84 | 4.8% | 7.0% | +224 | +1.6pp |
| 45 to 49 | 179 | 3.7% | 6.1% | 88 | 5.1% | 6.0% | +91 | -1.4pp |
| 50 to 54 | 159 | 3.3% | 5.3% | 88 | 5.1% | 5.8% | +71 | -1.8pp |
| 55 to 59 | 152 | 3.1% | 5.0% | 49 | 2.8% | 5.3% | +103 | +0.3pp |
| 60 to 64 | 107 | 2.2% | 4.6% | 39 | 2.3% | 4.6% | +68 | -0.1pp |
| 65 to 69 | 94 | 1.9% | 3.9% | 24 | 1.4% | 3.8% | +70 | +0.5pp |
| 70 to 74 | 40 | 0.8% | 3.1% | 7 | 0.4% | 2.9% | +33 | +0.4pp |
| 75 to 79 | 21 | 0.4% | 2.3% | 0 | 0.0% | 2.2% | +21 | +0.4pp |
| 80 to 84 | 8 | 0.2% | 1.6% | 3 | 0.2% | 1.6% | +5 | 0.0pp |
| 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 |