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, 5 to 9 year olds was the largest age group among residents in Dardanup (S), accounting for 7.2% (1,056 people). This share was higher than Regional WA (6.7%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 238 people and 1.5 percentage points.
Section overview
Age structure - Five year age groups
Dardanup (S) - Total persons (Usual residence)
This table summarises five year age groups for Dardanup (S) in 2021 for persons, with comparison against Regional WA and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Dardanup (S), with comparison markers for Regional WA.
0 to 4
2021 count
949
% of total
6.5%
Change from 2016
-1.0pp
949
6.5%
-1.0pp
5 to 9
2021 count
1,056
% of total
7.2%
Change from 2016
0.0pp
1,056
7.2%
0.0pp
10 to 14
2021 count
989
% of total
6.7%
Change from 2016
-0.1pp
989
6.7%
-0.1pp
15 to 19
2021 count
840
% of total
5.7%
Change from 2016
-0.9pp
840
5.7%
-0.9pp
20 to 24
2021 count
689
% of total
4.7%
Change from 2016
-0.9pp
689
4.7%
-0.9pp
25 to 29
2021 count
866
% of total
5.9%
Change from 2016
-0.7pp
866
5.9%
-0.7pp
30 to 34
2021 count
966
% of total
6.6%
Change from 2016
+0.1pp
966
6.6%
+0.1pp
35 to 39
2021 count
972
% of total
6.6%
Change from 2016
+0.1pp
972
6.6%
+0.1pp
40 to 44
2021 count
967
% of total
6.6%
Change from 2016
+0.4pp
967
6.6%
+0.4pp
45 to 49
2021 count
856
% of total
5.8%
Change from 2016
-1.0pp
856
5.8%
-1.0pp
50 to 54
2021 count
991
% of total
6.7%
Change from 2016
+0.1pp
991
6.7%
+0.1pp
55 to 59
2021 count
908
% of total
6.2%
Change from 2016
-0.1pp
908
6.2%
-0.1pp
60 to 64
2021 count
889
% of total
6.1%
Change from 2016
+0.7pp
889
6.1%
+0.7pp
65 to 69
2021 count
777
% of total
5.3%
Change from 2016
+0.3pp
777
5.3%
+0.3pp
70 to 74
2021 count
720
% of total
4.9%
Change from 2016
+1.5pp
720
4.9%
+1.5pp
75 to 79
2021 count
513
% of total
3.5%
Change from 2016
+0.5pp
513
3.5%
+0.5pp
80 to 84
2021 count
386
% of total
2.6%
Change from 2016
+0.6pp
386
2.6%
+0.6pp
85 and over
2021 count
349
% of total
2.4%
Change from 2016
+0.5pp
349
2.4%
+0.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-103
-1.0pp
5 to 9
+40
0.0pp
10 to 14
+28
-0.1pp
15 to 19
-81
-0.9pp
20 to 24
-98
-0.9pp
25 to 29
-54
-0.7pp
30 to 34
+49
+0.1pp
35 to 39
+62
+0.1pp
40 to 44
+98
+0.4pp
45 to 49
-99
-1.0pp
50 to 54
+63
+0.1pp
55 to 59
+18
-0.1pp
60 to 64
+132
+0.7pp
65 to 69
+76
+0.3pp
70 to 74
+238
+1.5pp
75 to 79
+97
+0.5pp
80 to 84
+100
+0.6pp
85 and over
+81
+0.5pp
Data table
Five year age groups for Dardanup (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional WA% | Count | % | Regional WA% | Count | pp | |
| 0 to 4 | 949 | 6.5% | 6.0% | 1,052 | 7.5% | 6.6% | -103 | -1.0pp |
| 5 to 9 | 1,056 | 7.2% | 6.7% | 1,016 | 7.2% | 7.1% | +40 | 0.0pp |
| 10 to 14 | 989 | 6.7% | 6.7% | 961 | 6.8% | 6.5% | +28 | -0.1pp |
| 15 to 19 | 840 | 5.7% | 5.5% | 921 | 6.6% | 5.7% | -81 | -0.9pp |
| 20 to 24 | 689 | 4.7% | 4.8% | 787 | 5.6% | 5.0% | -98 | -0.9pp |
| 25 to 29 | 866 | 5.9% | 5.9% | 920 | 6.6% | 6.5% | -54 | -0.7pp |
| 30 to 34 | 966 | 6.6% | 6.6% | 917 | 6.5% | 7.1% | +49 | +0.1pp |
| 35 to 39 | 972 | 6.6% | 6.8% | 910 | 6.5% | 6.7% | +62 | +0.1pp |
| 40 to 44 | 967 | 6.6% | 6.4% | 869 | 6.2% | 7.0% | +98 | +0.4pp |
| 45 to 49 | 856 | 5.8% | 6.6% | 955 | 6.8% | 7.2% | -99 | -1.0pp |
| 50 to 54 | 991 | 6.7% | 6.9% | 928 | 6.6% | 7.1% | +63 | +0.1pp |
| 55 to 59 | 908 | 6.2% | 6.8% | 890 | 6.3% | 6.9% | +18 | -0.1pp |
| 60 to 64 | 889 | 6.1% | 6.7% | 757 | 5.4% | 6.0% | +132 | +0.7pp |
| 65 to 69 | 777 | 5.3% | 5.7% | 701 | 5.0% | 5.3% | +76 | +0.3pp |
| 70 to 74 | 720 | 4.9% | 4.9% | 482 | 3.4% | 3.6% | +238 | +1.5pp |
| 75 to 79 | 513 | 3.5% | 3.2% | 416 | 3.0% | 2.6% | +97 | +0.5pp |
| 80 to 84 | 386 | 2.6% | 2.0% | 286 | 2.0% | 1.6% | +100 | +0.6pp |
| 85 and over | 349 | 2.4% | 1.7% | 268 | 1.9% | 1.5% | +81 | +0.5pp |
| Total | 14,686 | 100.0% | 100.0% | 14,033 | 100.0% | 100.0% | +653 | 0.0pp |