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, 35 to 39 year olds was the largest age group among residents in Rydalmere, accounting for 7.8% (565 people). This share was lower than Parramatta (C) (10.2%). Since 2016, the biggest change was in 60 to 64 year olds, which increased by 133 people and 1.5 percentage points.
Section overview
Age structure - Five year age groups
Rydalmere - Total persons (Usual residence)
This table summarises five year age groups for Rydalmere 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 Rydalmere, with comparison markers for Parramatta (C).
0 to 4
2021 count
482
% of total
6.6%
Change from 2016
-0.1pp
482
6.6%
-0.1pp
5 to 9
2021 count
476
% of total
6.5%
Change from 2016
-0.2pp
476
6.5%
-0.2pp
10 to 14
2021 count
435
% of total
6.0%
Change from 2016
0.0pp
435
6.0%
0.0pp
15 to 19
2021 count
444
% of total
6.1%
Change from 2016
-0.5pp
444
6.1%
-0.5pp
20 to 24
2021 count
435
% of total
6.0%
Change from 2016
+0.1pp
435
6.0%
+0.1pp
25 to 29
2021 count
491
% of total
6.8%
Change from 2016
+0.5pp
491
6.8%
+0.5pp
30 to 34
2021 count
554
% of total
7.6%
Change from 2016
+0.1pp
554
7.6%
+0.1pp
35 to 39
2021 count
565
% of total
7.8%
Change from 2016
+0.9pp
565
7.8%
+0.9pp
40 to 44
2021 count
493
% of total
6.8%
Change from 2016
-1.0pp
493
6.8%
-1.0pp
45 to 49
2021 count
546
% of total
7.5%
Change from 2016
-0.1pp
546
7.5%
-0.1pp
50 to 54
2021 count
473
% of total
6.5%
Change from 2016
-1.0pp
473
6.5%
-1.0pp
55 to 59
2021 count
486
% of total
6.7%
Change from 2016
-0.1pp
486
6.7%
-0.1pp
60 to 64
2021 count
435
% of total
6.0%
Change from 2016
+1.5pp
435
6.0%
+1.5pp
65 to 69
2021 count
316
% of total
4.3%
Change from 2016
+0.4pp
316
4.3%
+0.4pp
70 to 74
2021 count
242
% of total
3.3%
Change from 2016
+0.2pp
242
3.3%
+0.2pp
75 to 79
2021 count
183
% of total
2.5%
Change from 2016
+0.2pp
183
2.5%
+0.2pp
80 to 84
2021 count
118
% of total
1.6%
Change from 2016
-0.1pp
118
1.6%
-0.1pp
85 and over
2021 count
107
% of total
1.5%
Change from 2016
-0.2pp
107
1.5%
-0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+36
-0.1pp
5 to 9
+29
-0.2pp
10 to 14
+37
0.0pp
15 to 19
+3
-0.5pp
20 to 24
+44
+0.1pp
25 to 29
+71
+0.5pp
30 to 34
+57
+0.1pp
35 to 39
+103
+0.9pp
40 to 44
-25
-1.0pp
45 to 49
+38
-0.1pp
50 to 54
-27
-1.0pp
55 to 59
+33
-0.1pp
60 to 64
+133
+1.5pp
65 to 69
+60
+0.4pp
70 to 74
+36
+0.2pp
75 to 79
+29
+0.2pp
80 to 84
+5
-0.1pp
85 and over
-8
-0.2pp
Data table
Five year age groups for Rydalmere. 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 | 482 | 6.6% | 6.2% | 446 | 6.7% | 7.3% | +36 | -0.1pp |
| 5 to 9 | 476 | 6.5% | 6.5% | 447 | 6.7% | 6.2% | +29 | -0.2pp |
| 10 to 14 | 435 | 6.0% | 5.4% | 398 | 6.0% | 4.9% | +37 | 0.0pp |
| 15 to 19 | 444 | 6.1% | 4.5% | 441 | 6.6% | 5.1% | +3 | -0.5pp |
| 20 to 24 | 435 | 6.0% | 6.6% | 391 | 5.9% | 6.6% | +44 | +0.1pp |
| 25 to 29 | 491 | 6.8% | 9.1% | 420 | 6.3% | 9.2% | +71 | +0.5pp |
| 30 to 34 | 554 | 7.6% | 10.3% | 497 | 7.5% | 11.1% | +57 | +0.1pp |
| 35 to 39 | 565 | 7.8% | 10.2% | 462 | 6.9% | 8.8% | +103 | +0.9pp |
| 40 to 44 | 493 | 6.8% | 7.5% | 518 | 7.8% | 7.0% | -25 | -1.0pp |
| 45 to 49 | 546 | 7.5% | 6.1% | 508 | 7.6% | 6.0% | +38 | -0.1pp |
| 50 to 54 | 473 | 6.5% | 5.3% | 500 | 7.5% | 5.8% | -27 | -1.0pp |
| 55 to 59 | 486 | 6.7% | 5.0% | 453 | 6.8% | 5.3% | +33 | -0.1pp |
| 60 to 64 | 435 | 6.0% | 4.6% | 302 | 4.5% | 4.6% | +133 | +1.5pp |
| 65 to 69 | 316 | 4.3% | 3.9% | 256 | 3.9% | 3.8% | +60 | +0.4pp |
| 70 to 74 | 242 | 3.3% | 3.1% | 206 | 3.1% | 2.9% | +36 | +0.2pp |
| 75 to 79 | 183 | 2.5% | 2.3% | 154 | 2.3% | 2.2% | +29 | +0.2pp |
| 80 to 84 | 118 | 1.6% | 1.6% | 113 | 1.7% | 1.6% | +5 | -0.1pp |
| 85 and over | 107 | 1.5% | 1.6% | 115 | 1.7% | 1.7% | -8 | -0.2pp |
| Total | 7,274 | 100.0% | 100.0% | 6,650 | 100.0% | 100.0% | +624 | 0.0pp |