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, 65 to 69 year olds was the largest age group among residents in Quedjinup, accounting for 10.2% (43 people). This share was higher than Busselton (C) (6.8%). Since 2016, the biggest change was in 25 to 29 year olds, which decreased by 29 people and 5.6 percentage points.
Section overview
Age structure - Five year age groups
Quedjinup - Total persons (Usual residence)
This table summarises five year age groups for Quedjinup in 2021 for persons, with comparison against Busselton (C) and change since 2016.
Chart view
Age structure - Five year age groups snapshot
2021 distribution by category for Quedjinup, with comparison markers for Busselton (C).
0 to 4
2021 count
17
% of total
4.0%
Change from 2016
-2.6pp
17
4.0%
-2.6pp
5 to 9
2021 count
29
% of total
6.9%
Change from 2016
+2.1pp
29
6.9%
+2.1pp
10 to 14
2021 count
33
% of total
7.9%
Change from 2016
+3.9pp
33
7.9%
+3.9pp
15 to 19
2021 count
28
% of total
6.7%
Change from 2016
+4.9pp
28
6.7%
+4.9pp
20 to 24
2021 count
4
% of total
1.0%
Change from 2016
-3.2pp
4
1.0%
-3.2pp
25 to 29
2021 count
6
% of total
1.4%
Change from 2016
-5.6pp
6
1.4%
-5.6pp
30 to 34
2021 count
9
% of total
2.1%
Change from 2016
-5.3pp
9
2.1%
-5.3pp
35 to 39
2021 count
15
% of total
3.6%
Change from 2016
-1.8pp
15
3.6%
-1.8pp
40 to 44
2021 count
27
% of total
6.4%
Change from 2016
+0.2pp
27
6.4%
+0.2pp
45 to 49
2021 count
25
% of total
6.0%
Change from 2016
-1.0pp
25
6.0%
-1.0pp
50 to 54
2021 count
31
% of total
7.4%
Change from 2016
+0.2pp
31
7.4%
+0.2pp
55 to 59
2021 count
40
% of total
9.5%
Change from 2016
+0.7pp
40
9.5%
+0.7pp
60 to 64
2021 count
25
% of total
6.0%
Change from 2016
-1.4pp
25
6.0%
-1.4pp
65 to 69
2021 count
43
% of total
10.2%
Change from 2016
+2.2pp
43
10.2%
+2.2pp
70 to 74
2021 count
24
% of total
5.7%
Change from 2016
-0.9pp
24
5.7%
-0.9pp
75 to 79
2021 count
21
% of total
5.0%
Change from 2016
+3.6pp
21
5.0%
+3.6pp
80 to 84
2021 count
11
% of total
2.6%
Change from 2016
-0.6pp
11
2.6%
-0.6pp
85 and over
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-16
-2.6pp
5 to 9
+5
+2.1pp
10 to 14
+13
+3.9pp
15 to 19
+19
+4.9pp
20 to 24
-17
-3.2pp
25 to 29
-29
-5.6pp
30 to 34
-28
-5.3pp
35 to 39
-12
-1.8pp
40 to 44
-4
+0.2pp
45 to 49
-10
-1.0pp
50 to 54
-5
+0.2pp
55 to 59
-4
+0.7pp
60 to 64
-12
-1.4pp
65 to 69
+3
+2.2pp
70 to 74
-9
-0.9pp
75 to 79
+14
+3.6pp
80 to 84
-5
-0.6pp
85 and over
0
0.0pp
Data table
Five year age groups for Quedjinup. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Busselton (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Busselton (C)% | Count | % | Busselton (C)% | Count | pp | |
| 0 to 4 | 17 | 4.0% | 5.0% | 33 | 6.6% | 6.1% | -16 | -2.6pp |
| 5 to 9 | 29 | 6.9% | 6.5% | 24 | 4.8% | 7.3% | +5 | +2.1pp |
| 10 to 14 | 33 | 7.9% | 7.3% | 20 | 4.0% | 7.0% | +13 | +3.9pp |
| 15 to 19 | 28 | 6.7% | 5.6% | 9 | 1.8% | 5.8% | +19 | +4.9pp |
| 20 to 24 | 4 | 1.0% | 3.4% | 21 | 4.2% | 4.0% | -17 | -3.2pp |
| 25 to 29 | 6 | 1.4% | 4.2% | 35 | 7.0% | 4.4% | -29 | -5.6pp |
| 30 to 34 | 9 | 2.1% | 5.2% | 37 | 7.4% | 5.9% | -28 | -5.3pp |
| 35 to 39 | 15 | 3.6% | 6.2% | 27 | 5.4% | 6.2% | -12 | -1.8pp |
| 40 to 44 | 27 | 6.4% | 6.5% | 31 | 6.2% | 7.2% | -4 | +0.2pp |
| 45 to 49 | 25 | 6.0% | 6.9% | 35 | 7.0% | 7.1% | -10 | -1.0pp |
| 50 to 54 | 31 | 7.4% | 6.6% | 36 | 7.2% | 6.4% | -5 | +0.2pp |
| 55 to 59 | 40 | 9.5% | 6.4% | 44 | 8.8% | 6.4% | -4 | +0.7pp |
| 60 to 64 | 25 | 6.0% | 6.8% | 37 | 7.4% | 6.5% | -12 | -1.4pp |
| 65 to 69 | 43 | 10.2% | 6.8% | 40 | 8.0% | 6.7% | +3 | +2.2pp |
| 70 to 74 | 24 | 5.7% | 6.8% | 33 | 6.6% | 4.9% | -9 | -0.9pp |
| 75 to 79 | 21 | 5.0% | 4.4% | 7 | 1.4% | 3.4% | +14 | +3.6pp |
| 80 to 84 | 11 | 2.6% | 2.9% | 16 | 3.2% | 2.4% | -5 | -0.6pp |
| 85 and over | 0 | 0.0% | 2.6% | 0 | 0.0% | 2.3% | 0 | 0.0pp |
| Total | 420 | 100.0% | 100.0% | 498 | 100.0% | 100.0% | -78 | 0.0pp |