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, 55 to 59 year olds was the largest age group among residents in Lake Clifton, accounting for 10.9% (83 people). This share was higher than Waroona (S) (8%). Since 2016, the biggest change was in 55 to 59 year olds, which increased by 80 people, while its share fell by 4.1 percentage points.
Section overview
Age structure - Five year age groups
Lake Clifton - Total persons (Usual residence)
This table summarises five year age groups for Lake Clifton in 2021 for persons, with comparison against Waroona (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Lake Clifton, with comparison markers for Waroona (S).
0 to 4
2021 count
26
% of total
3.4%
Change from 2016
+3.4pp
26
3.4%
+3.4pp
5 to 9
2021 count
54
% of total
7.1%
Change from 2016
+7.1pp
54
7.1%
+7.1pp
10 to 14
2021 count
57
% of total
7.5%
Change from 2016
+7.5pp
57
7.5%
+7.5pp
15 to 19
2021 count
60
% of total
7.9%
Change from 2016
+7.9pp
60
7.9%
+7.9pp
20 to 24
2021 count
39
% of total
5.1%
Change from 2016
+5.1pp
39
5.1%
+5.1pp
25 to 29
2021 count
21
% of total
2.8%
Change from 2016
+2.8pp
21
2.8%
+2.8pp
30 to 34
2021 count
40
% of total
5.3%
Change from 2016
+5.3pp
40
5.3%
+5.3pp
35 to 39
2021 count
47
% of total
6.2%
Change from 2016
+6.2pp
47
6.2%
+6.2pp
40 to 44
2021 count
65
% of total
8.6%
Change from 2016
+8.6pp
65
8.6%
+8.6pp
45 to 49
2021 count
47
% of total
6.2%
Change from 2016
+6.2pp
47
6.2%
+6.2pp
50 to 54
2021 count
71
% of total
9.4%
Change from 2016
+9.4pp
71
9.4%
+9.4pp
55 to 59
2021 count
83
% of total
10.9%
Change from 2016
-4.1pp
83
10.9%
-4.1pp
60 to 64
2021 count
49
% of total
6.5%
Change from 2016
+6.5pp
49
6.5%
+6.5pp
65 to 69
2021 count
46
% of total
6.1%
Change from 2016
+6.1pp
46
6.1%
+6.1pp
70 to 74
2021 count
35
% of total
4.6%
Change from 2016
-10.4pp
35
4.6%
-10.4pp
75 to 79
2021 count
23
% of total
3.0%
Change from 2016
+3.0pp
23
3.0%
+3.0pp
80 to 84
2021 count
9
% of total
1.2%
Change from 2016
+1.2pp
9
1.2%
+1.2pp
85 and over
2021 count
4
% of total
0.5%
Change from 2016
+0.5pp
4
0.5%
+0.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+26
+3.4pp
5 to 9
+54
+7.1pp
10 to 14
+57
+7.5pp
15 to 19
+60
+7.9pp
20 to 24
+39
+5.1pp
25 to 29
+21
+2.8pp
30 to 34
+40
+5.3pp
35 to 39
+47
+6.2pp
40 to 44
+65
+8.6pp
45 to 49
+47
+6.2pp
50 to 54
+71
+9.4pp
55 to 59
+80
-4.1pp
60 to 64
+49
+6.5pp
65 to 69
+46
+6.1pp
70 to 74
+32
-10.4pp
75 to 79
+23
+3.0pp
80 to 84
+9
+1.2pp
85 and over
+4
+0.5pp
Data table
Five year age groups for Lake Clifton. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Waroona (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Waroona (S)% | Count | % | Waroona (S)% | Count | pp | |
| 0 to 4 | 26 | 3.4% | 4.6% | 0 | 0.0% | 5.3% | +26 | +3.4pp |
| 5 to 9 | 54 | 7.1% | 5.3% | 0 | 0.0% | 6.3% | +54 | +7.1pp |
| 10 to 14 | 57 | 7.5% | 6.3% | 0 | 0.0% | 7.1% | +57 | +7.5pp |
| 15 to 19 | 60 | 7.9% | 5.8% | 0 | 0.0% | 5.8% | +60 | +7.9pp |
| 20 to 24 | 39 | 5.1% | 4.0% | 0 | 0.0% | 4.3% | +39 | +5.1pp |
| 25 to 29 | 21 | 2.8% | 4.0% | 0 | 0.0% | 4.3% | +21 | +2.8pp |
| 30 to 34 | 40 | 5.3% | 4.6% | 0 | 0.0% | 5.3% | +40 | +5.3pp |
| 35 to 39 | 47 | 6.2% | 5.4% | 0 | 0.0% | 5.3% | +47 | +6.2pp |
| 40 to 44 | 65 | 8.6% | 6.1% | 0 | 0.0% | 5.4% | +65 | +8.6pp |
| 45 to 49 | 47 | 6.2% | 6.0% | 0 | 0.0% | 7.1% | +47 | +6.2pp |
| 50 to 54 | 71 | 9.4% | 7.5% | 0 | 0.0% | 7.7% | +71 | +9.4pp |
| 55 to 59 | 83 | 10.9% | 8.0% | 3 | 15.0% | 7.4% | +80 | -4.1pp |
| 60 to 64 | 49 | 6.5% | 7.5% | 0 | 0.0% | 7.3% | +49 | +6.5pp |
| 65 to 69 | 46 | 6.1% | 7.3% | 0 | 0.0% | 7.2% | +46 | +6.1pp |
| 70 to 74 | 35 | 4.6% | 7.2% | 3 | 15.0% | 4.3% | +32 | -10.4pp |
| 75 to 79 | 23 | 3.0% | 3.9% | 0 | 0.0% | 4.5% | +23 | +3.0pp |
| 80 to 84 | 9 | 1.2% | 3.3% | 0 | 0.0% | 2.5% | +9 | +1.2pp |
| 85 and over | 4 | 0.5% | 2.5% | 0 | 0.0% | 2.3% | +4 | +0.5pp |
| Total | 759 | 100.0% | 100.0% | 20 | 100.0% | 100.0% | +739 | 0.0pp |