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, 20 to 24 year olds was the largest age group among residents in Nedlands (part), accounting for 7.8% (821 people). This share was higher than Nedlands (C) (6.3%). Since 2016, the biggest change was in 75 to 79 year olds, which increased by 153 people and 1.3 percentage points.
Section overview
Age structure - Five year age groups
Nedlands (part) - Total persons (Usual residence)
This table summarises five year age groups for Nedlands (part) in 2021 for persons, with comparison against Nedlands (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Nedlands (part), with comparison markers for Nedlands (C).
0 to 4
2021 count
471
% of total
4.5%
Change from 2016
-0.4pp
471
4.5%
-0.4pp
5 to 9
2021 count
685
% of total
6.5%
Change from 2016
-0.4pp
685
6.5%
-0.4pp
10 to 14
2021 count
772
% of total
7.3%
Change from 2016
+0.4pp
772
7.3%
+0.4pp
15 to 19
2021 count
711
% of total
6.7%
Change from 2016
+0.3pp
711
6.7%
+0.3pp
20 to 24
2021 count
821
% of total
7.8%
Change from 2016
-1.3pp
821
7.8%
-1.3pp
25 to 29
2021 count
560
% of total
5.3%
Change from 2016
-0.7pp
560
5.3%
-0.7pp
30 to 34
2021 count
433
% of total
4.1%
Change from 2016
-0.4pp
433
4.1%
-0.4pp
35 to 39
2021 count
575
% of total
5.4%
Change from 2016
0.0pp
575
5.4%
0.0pp
40 to 44
2021 count
651
% of total
6.2%
Change from 2016
0.0pp
651
6.2%
0.0pp
45 to 49
2021 count
717
% of total
6.8%
Change from 2016
-0.3pp
717
6.8%
-0.3pp
50 to 54
2021 count
716
% of total
6.8%
Change from 2016
+0.5pp
716
6.8%
+0.5pp
55 to 59
2021 count
604
% of total
5.7%
Change from 2016
-0.9pp
604
5.7%
-0.9pp
60 to 64
2021 count
624
% of total
5.9%
Change from 2016
-0.2pp
624
5.9%
-0.2pp
65 to 69
2021 count
580
% of total
5.5%
Change from 2016
-0.3pp
580
5.5%
-0.3pp
70 to 74
2021 count
565
% of total
5.3%
Change from 2016
+1.0pp
565
5.3%
+1.0pp
75 to 79
2021 count
437
% of total
4.1%
Change from 2016
+1.3pp
437
4.1%
+1.3pp
80 to 84
2021 count
274
% of total
2.6%
Change from 2016
+0.5pp
274
2.6%
+0.5pp
85 and over
2021 count
355
% of total
3.4%
Change from 2016
+0.4pp
355
3.4%
+0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-28
-0.4pp
5 to 9
-23
-0.4pp
10 to 14
+70
+0.4pp
15 to 19
+60
+0.3pp
20 to 24
-103
-1.3pp
25 to 29
-47
-0.7pp
30 to 34
-22
-0.4pp
35 to 39
+23
0.0pp
40 to 44
+20
0.0pp
45 to 49
-11
-0.3pp
50 to 54
+70
+0.5pp
55 to 59
-73
-0.9pp
60 to 64
-1
-0.2pp
65 to 69
-9
-0.3pp
70 to 74
+124
+1.0pp
75 to 79
+153
+1.3pp
80 to 84
+59
+0.5pp
85 and over
+47
+0.4pp
Data table
Five year age groups for Nedlands (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Nedlands (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Nedlands (C)% | Count | % | Nedlands (C)% | Count | pp | |
| 0 to 4 | 471 | 4.5% | 4.5% | 499 | 4.9% | 4.8% | -28 | -0.4pp |
| 5 to 9 | 685 | 6.5% | 6.7% | 708 | 6.9% | 7.2% | -23 | -0.4pp |
| 10 to 14 | 772 | 7.3% | 7.8% | 702 | 6.9% | 7.9% | +70 | +0.4pp |
| 15 to 19 | 711 | 6.7% | 7.5% | 651 | 6.4% | 7.2% | +60 | +0.3pp |
| 20 to 24 | 821 | 7.8% | 6.3% | 924 | 9.1% | 7.3% | -103 | -1.3pp |
| 25 to 29 | 560 | 5.3% | 4.5% | 607 | 6.0% | 4.4% | -47 | -0.7pp |
| 30 to 34 | 433 | 4.1% | 4.0% | 455 | 4.5% | 4.0% | -22 | -0.4pp |
| 35 to 39 | 575 | 5.4% | 5.0% | 552 | 5.4% | 5.1% | +23 | 0.0pp |
| 40 to 44 | 651 | 6.2% | 6.0% | 631 | 6.2% | 6.4% | +20 | 0.0pp |
| 45 to 49 | 717 | 6.8% | 6.9% | 728 | 7.1% | 7.5% | -11 | -0.3pp |
| 50 to 54 | 716 | 6.8% | 7.3% | 646 | 6.3% | 7.1% | +70 | +0.5pp |
| 55 to 59 | 604 | 5.7% | 6.2% | 677 | 6.6% | 7.0% | -73 | -0.9pp |
| 60 to 64 | 624 | 5.9% | 6.3% | 625 | 6.1% | 6.1% | -1 | -0.2pp |
| 65 to 69 | 580 | 5.5% | 5.6% | 589 | 5.8% | 6.0% | -9 | -0.3pp |
| 70 to 74 | 565 | 5.3% | 5.7% | 441 | 4.3% | 4.3% | +124 | +1.0pp |
| 75 to 79 | 437 | 4.1% | 4.2% | 284 | 2.8% | 3.0% | +153 | +1.3pp |
| 80 to 84 | 274 | 2.6% | 2.6% | 215 | 2.1% | 2.2% | +59 | +0.5pp |
| 85 and over | 355 | 3.4% | 3.0% | 308 | 3.0% | 2.7% | +47 | +0.4pp |
| Total | 10,561 | 100.0% | 100.0% | 10,194 | 100.0% | 100.0% | +367 | 0.0pp |