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, 10 to 14 year olds was the largest age group among residents in Floreat (part), accounting for 9.3% (805 people). This share was higher than Cambridge (T) (8%). Since 2016, the biggest change was in 15 to 19 year olds, which increased by 147 people and 1.1 percentage points.
Section overview
Age structure - Five year age groups
Floreat (part) - Total persons (Usual residence)
This table summarises five year age groups for Floreat (part) in 2021 for persons, with comparison against Cambridge (T) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Floreat (part), with comparison markers for Cambridge (T).
0 to 4
2021 count
411
% of total
4.8%
Change from 2016
-1.0pp
411
4.8%
-1.0pp
5 to 9
2021 count
682
% of total
7.9%
Change from 2016
-1.5pp
682
7.9%
-1.5pp
10 to 14
2021 count
805
% of total
9.3%
Change from 2016
+0.1pp
805
9.3%
+0.1pp
15 to 19
2021 count
727
% of total
8.4%
Change from 2016
+1.1pp
727
8.4%
+1.1pp
20 to 24
2021 count
444
% of total
5.2%
Change from 2016
-0.6pp
444
5.2%
-0.6pp
25 to 29
2021 count
240
% of total
2.8%
Change from 2016
-0.9pp
240
2.8%
-0.9pp
30 to 34
2021 count
295
% of total
3.4%
Change from 2016
+0.3pp
295
3.4%
+0.3pp
35 to 39
2021 count
462
% of total
5.4%
Change from 2016
+0.3pp
462
5.4%
+0.3pp
40 to 44
2021 count
577
% of total
6.7%
Change from 2016
-1.4pp
577
6.7%
-1.4pp
45 to 49
2021 count
715
% of total
8.3%
Change from 2016
-0.4pp
715
8.3%
-0.4pp
50 to 54
2021 count
720
% of total
8.4%
Change from 2016
+0.1pp
720
8.4%
+0.1pp
55 to 59
2021 count
659
% of total
7.6%
Change from 2016
+0.4pp
659
7.6%
+0.4pp
60 to 64
2021 count
564
% of total
6.5%
Change from 2016
+1.0pp
564
6.5%
+1.0pp
65 to 69
2021 count
430
% of total
5.0%
Change from 2016
+1.4pp
430
5.0%
+1.4pp
70 to 74
2021 count
331
% of total
3.8%
Change from 2016
+1.0pp
331
3.8%
+1.0pp
75 to 79
2021 count
246
% of total
2.9%
Change from 2016
+0.8pp
246
2.9%
+0.8pp
80 to 84
2021 count
163
% of total
1.9%
Change from 2016
+0.3pp
163
1.9%
+0.3pp
85 and over
2021 count
167
% of total
1.9%
Change from 2016
-0.4pp
167
1.9%
-0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-44
-1.0pp
5 to 9
-57
-1.5pp
10 to 14
+76
+0.1pp
15 to 19
+147
+1.1pp
20 to 24
-15
-0.6pp
25 to 29
-49
-0.9pp
30 to 34
+51
+0.3pp
35 to 39
+60
+0.3pp
40 to 44
-64
-1.4pp
45 to 49
+26
-0.4pp
50 to 54
+62
+0.1pp
55 to 59
+92
+0.4pp
60 to 64
+132
+1.0pp
65 to 69
+142
+1.4pp
70 to 74
+108
+1.0pp
75 to 79
+80
+0.8pp
80 to 84
+36
+0.3pp
85 and over
-16
-0.4pp
Data table
Five year age groups for Floreat (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Cambridge (T).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Cambridge (T)% | Count | % | Cambridge (T)% | Count | pp | |
| 0 to 4 | 411 | 4.8% | 4.8% | 455 | 5.8% | 5.7% | -44 | -1.0pp |
| 5 to 9 | 682 | 7.9% | 6.7% | 739 | 9.4% | 7.9% | -57 | -1.5pp |
| 10 to 14 | 805 | 9.3% | 8.0% | 729 | 9.2% | 7.5% | +76 | +0.1pp |
| 15 to 19 | 727 | 8.4% | 6.9% | 580 | 7.3% | 6.3% | +147 | +1.1pp |
| 20 to 24 | 444 | 5.2% | 5.1% | 459 | 5.8% | 5.7% | -15 | -0.6pp |
| 25 to 29 | 240 | 2.8% | 4.6% | 289 | 3.7% | 5.3% | -49 | -0.9pp |
| 30 to 34 | 295 | 3.4% | 5.2% | 244 | 3.1% | 5.3% | +51 | +0.3pp |
| 35 to 39 | 462 | 5.4% | 6.2% | 402 | 5.1% | 6.0% | +60 | +0.3pp |
| 40 to 44 | 577 | 6.7% | 6.8% | 641 | 8.1% | 7.5% | -64 | -1.4pp |
| 45 to 49 | 715 | 8.3% | 7.7% | 689 | 8.7% | 8.2% | +26 | -0.4pp |
| 50 to 54 | 720 | 8.4% | 7.5% | 658 | 8.3% | 6.9% | +62 | +0.1pp |
| 55 to 59 | 659 | 7.6% | 6.5% | 567 | 7.2% | 6.5% | +92 | +0.4pp |
| 60 to 64 | 564 | 6.5% | 5.9% | 432 | 5.5% | 5.3% | +132 | +1.0pp |
| 65 to 69 | 430 | 5.0% | 5.0% | 288 | 3.6% | 4.1% | +142 | +1.4pp |
| 70 to 74 | 331 | 3.8% | 4.1% | 223 | 2.8% | 3.3% | +108 | +1.0pp |
| 75 to 79 | 246 | 2.9% | 3.0% | 166 | 2.1% | 2.9% | +80 | +0.8pp |
| 80 to 84 | 163 | 1.9% | 2.5% | 127 | 1.6% | 2.5% | +36 | +0.3pp |
| 85 and over | 167 | 1.9% | 3.4% | 183 | 2.3% | 3.1% | -16 | -0.4pp |
| Total | 8,621 | 100.0% | 100.0% | 7,899 | 100.0% | 100.0% | +722 | 0.0pp |