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, 50 to 54 year olds was the largest age group among residents in Echunga, accounting for 8.7% (106 people). This share was higher than Mount Barker (DC) (6.8%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 60 people and 4.6 percentage points.
Section overview
Age structure - Five year age groups
Echunga - Total persons (Usual residence)
This table summarises five year age groups for Echunga in 2021 for persons, with comparison against Mount Barker (DC) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Echunga, with comparison markers for Mount Barker (DC).
0 to 4
2021 count
83
% of total
6.8%
Change from 2016
+0.8pp
83
6.8%
+0.8pp
5 to 9
2021 count
72
% of total
5.9%
Change from 2016
-0.2pp
72
5.9%
-0.2pp
10 to 14
2021 count
64
% of total
5.3%
Change from 2016
-1.1pp
64
5.3%
-1.1pp
15 to 19
2021 count
75
% of total
6.2%
Change from 2016
-0.2pp
75
6.2%
-0.2pp
20 to 24
2021 count
69
% of total
5.7%
Change from 2016
+0.1pp
69
5.7%
+0.1pp
25 to 29
2021 count
61
% of total
5.0%
Change from 2016
+1.4pp
61
5.0%
+1.4pp
30 to 34
2021 count
62
% of total
5.1%
Change from 2016
-2.0pp
62
5.1%
-2.0pp
35 to 39
2021 count
101
% of total
8.3%
Change from 2016
+4.6pp
101
8.3%
+4.6pp
40 to 44
2021 count
60
% of total
4.9%
Change from 2016
-1.7pp
60
4.9%
-1.7pp
45 to 49
2021 count
88
% of total
7.2%
Change from 2016
-1.9pp
88
7.2%
-1.9pp
50 to 54
2021 count
106
% of total
8.7%
Change from 2016
-0.5pp
106
8.7%
-0.5pp
55 to 59
2021 count
79
% of total
6.5%
Change from 2016
-2.9pp
79
6.5%
-2.9pp
60 to 64
2021 count
90
% of total
7.4%
Change from 2016
+1.3pp
90
7.4%
+1.3pp
65 to 69
2021 count
73
% of total
6.0%
Change from 2016
-1.6pp
73
6.0%
-1.6pp
70 to 74
2021 count
67
% of total
5.5%
Change from 2016
+2.0pp
67
5.5%
+2.0pp
75 to 79
2021 count
31
% of total
2.5%
Change from 2016
+1.8pp
31
2.5%
+1.8pp
80 to 84
2021 count
10
% of total
0.8%
Change from 2016
+0.1pp
10
0.8%
+0.1pp
85 and over
2021 count
6
% of total
0.5%
Change from 2016
-0.1pp
6
0.5%
-0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+17
+0.8pp
5 to 9
+4
-0.2pp
10 to 14
-7
-1.1pp
15 to 19
+4
-0.2pp
20 to 24
+7
+0.1pp
25 to 29
+21
+1.4pp
30 to 34
-17
-2.0pp
35 to 39
+60
+4.6pp
40 to 44
-13
-1.7pp
45 to 49
-13
-1.9pp
50 to 54
+4
-0.5pp
55 to 59
-25
-2.9pp
60 to 64
+22
+1.3pp
65 to 69
-11
-1.6pp
70 to 74
+28
+2.0pp
75 to 79
+23
+1.8pp
80 to 84
+2
+0.1pp
85 and over
-1
-0.1pp
Data table
Five year age groups for Echunga. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mount Barker (DC).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mount Barker (DC)% | Count | % | Mount Barker (DC)% | Count | pp | |
| 0 to 4 | 83 | 6.8% | 6.4% | 66 | 6.0% | 6.4% | +17 | +0.8pp |
| 5 to 9 | 72 | 5.9% | 6.4% | 68 | 6.1% | 7.0% | +4 | -0.2pp |
| 10 to 14 | 64 | 5.3% | 6.8% | 71 | 6.4% | 6.7% | -7 | -1.1pp |
| 15 to 19 | 75 | 6.2% | 6.0% | 71 | 6.4% | 6.9% | +4 | -0.2pp |
| 20 to 24 | 69 | 5.7% | 5.8% | 62 | 5.6% | 5.7% | +7 | +0.1pp |
| 25 to 29 | 61 | 5.0% | 6.2% | 40 | 3.6% | 5.5% | +21 | +1.4pp |
| 30 to 34 | 62 | 5.1% | 6.4% | 79 | 7.1% | 6.0% | -17 | -2.0pp |
| 35 to 39 | 101 | 8.3% | 6.7% | 41 | 3.7% | 6.1% | +60 | +4.6pp |
| 40 to 44 | 60 | 4.9% | 6.2% | 73 | 6.6% | 7.2% | -13 | -1.7pp |
| 45 to 49 | 88 | 7.2% | 6.7% | 101 | 9.1% | 7.4% | -13 | -1.9pp |
| 50 to 54 | 106 | 8.7% | 6.8% | 102 | 9.2% | 6.9% | +4 | -0.5pp |
| 55 to 59 | 79 | 6.5% | 6.2% | 104 | 9.4% | 6.7% | -25 | -2.9pp |
| 60 to 64 | 90 | 7.4% | 5.9% | 68 | 6.1% | 6.0% | +22 | +1.3pp |
| 65 to 69 | 73 | 6.0% | 5.6% | 84 | 7.6% | 5.5% | -11 | -1.6pp |
| 70 to 74 | 67 | 5.5% | 5.0% | 39 | 3.5% | 4.0% | +28 | +2.0pp |
| 75 to 79 | 31 | 2.5% | 3.3% | 8 | 0.7% | 2.4% | +23 | +1.8pp |
| 80 to 84 | 10 | 0.8% | 1.9% | 8 | 0.7% | 1.7% | +2 | +0.1pp |
| 85 and over | 6 | 0.5% | 1.9% | 7 | 0.6% | 1.9% | -1 | -0.1pp |
| Total | 1,219 | 100.0% | 100.0% | 1,109 | 100.0% | 100.0% | +110 | 0.0pp |