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 Coober Pedy (DC), accounting for 8.9% (139 people). This share was higher than Regional SA (7.4%). Since 2016, the biggest change was in 70 to 74 year olds, which decreased by 44 people and 1.8 percentage points.
Section overview
Age structure - Five year age groups
Coober Pedy (DC) - Total persons (Usual residence)
This table summarises five year age groups for Coober Pedy (DC) in 2021 for persons, with comparison against Regional SA and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Coober Pedy (DC), with comparison markers for Regional SA.
0 to 4
2021 count
71
% of total
4.5%
Change from 2016
-1.7pp
71
4.5%
-1.7pp
5 to 9
2021 count
56
% of total
3.6%
Change from 2016
-1.5pp
56
3.6%
-1.5pp
10 to 14
2021 count
54
% of total
3.4%
Change from 2016
-1.1pp
54
3.4%
-1.1pp
15 to 19
2021 count
70
% of total
4.5%
Change from 2016
+1.2pp
70
4.5%
+1.2pp
20 to 24
2021 count
50
% of total
3.2%
Change from 2016
-1.5pp
50
3.2%
-1.5pp
25 to 29
2021 count
110
% of total
7.0%
Change from 2016
0.0pp
110
7.0%
0.0pp
30 to 34
2021 count
96
% of total
6.1%
Change from 2016
-0.9pp
96
6.1%
-0.9pp
35 to 39
2021 count
80
% of total
5.1%
Change from 2016
+0.2pp
80
5.1%
+0.2pp
40 to 44
2021 count
92
% of total
5.9%
Change from 2016
+1.0pp
92
5.9%
+1.0pp
45 to 49
2021 count
88
% of total
5.6%
Change from 2016
-1.4pp
88
5.6%
-1.4pp
50 to 54
2021 count
99
% of total
6.3%
Change from 2016
-1.8pp
99
6.3%
-1.8pp
55 to 59
2021 count
113
% of total
7.2%
Change from 2016
+0.4pp
113
7.2%
+0.4pp
60 to 64
2021 count
115
% of total
7.3%
Change from 2016
-0.2pp
115
7.3%
-0.2pp
65 to 69
2021 count
139
% of total
8.9%
Change from 2016
+2.5pp
139
8.9%
+2.5pp
70 to 74
2021 count
104
% of total
6.6%
Change from 2016
-1.8pp
104
6.6%
-1.8pp
75 to 79
2021 count
103
% of total
6.6%
Change from 2016
+1.9pp
103
6.6%
+1.9pp
80 to 84
2021 count
59
% of total
3.8%
Change from 2016
+1.8pp
59
3.8%
+1.8pp
85 and over
2021 count
34
% of total
2.2%
Change from 2016
+1.4pp
34
2.2%
+1.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-39
-1.7pp
5 to 9
-34
-1.5pp
10 to 14
-26
-1.1pp
15 to 19
+11
+1.2pp
20 to 24
-32
-1.5pp
25 to 29
-14
0.0pp
30 to 34
-27
-0.9pp
35 to 39
-6
+0.2pp
40 to 44
+5
+1.0pp
45 to 49
-35
-1.4pp
50 to 54
-43
-1.8pp
55 to 59
-6
+0.4pp
60 to 64
-18
-0.2pp
65 to 69
+26
+2.5pp
70 to 74
-44
-1.8pp
75 to 79
+20
+1.9pp
80 to 84
+24
+1.8pp
85 and over
+20
+1.4pp
Data table
Five year age groups for Coober Pedy (DC). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional SA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional SA% | Count | % | Regional SA% | Count | pp | |
| 0 to 4 | 71 | 4.5% | 4.9% | 110 | 6.2% | 5.5% | -39 | -1.7pp |
| 5 to 9 | 56 | 3.6% | 5.7% | 90 | 5.1% | 6.1% | -34 | -1.5pp |
| 10 to 14 | 54 | 3.4% | 6.1% | 80 | 4.5% | 6.0% | -26 | -1.1pp |
| 15 to 19 | 70 | 4.5% | 5.3% | 59 | 3.3% | 5.6% | +11 | +1.2pp |
| 20 to 24 | 50 | 3.2% | 4.6% | 82 | 4.7% | 4.8% | -32 | -1.5pp |
| 25 to 29 | 110 | 7.0% | 5.1% | 124 | 7.0% | 5.1% | -14 | 0.0pp |
| 30 to 34 | 96 | 6.1% | 5.4% | 123 | 7.0% | 5.3% | -27 | -0.9pp |
| 35 to 39 | 80 | 5.1% | 5.4% | 86 | 4.9% | 5.2% | -6 | +0.2pp |
| 40 to 44 | 92 | 5.9% | 5.2% | 87 | 4.9% | 5.9% | +5 | +1.0pp |
| 45 to 49 | 88 | 5.6% | 5.8% | 123 | 7.0% | 6.7% | -35 | -1.4pp |
| 50 to 54 | 99 | 6.3% | 6.7% | 142 | 8.1% | 7.1% | -43 | -1.8pp |
| 55 to 59 | 113 | 7.2% | 7.2% | 119 | 6.8% | 7.5% | -6 | +0.4pp |
| 60 to 64 | 115 | 7.3% | 7.7% | 133 | 7.5% | 7.3% | -18 | -0.2pp |
| 65 to 69 | 139 | 8.9% | 7.4% | 113 | 6.4% | 7.1% | +26 | +2.5pp |
| 70 to 74 | 104 | 6.6% | 6.8% | 148 | 8.4% | 5.5% | -44 | -1.8pp |
| 75 to 79 | 103 | 6.6% | 4.8% | 83 | 4.7% | 3.9% | +20 | +1.9pp |
| 80 to 84 | 59 | 3.8% | 3.1% | 35 | 2.0% | 2.6% | +24 | +1.8pp |
| 85 and over | 34 | 2.2% | 2.8% | 14 | 0.8% | 2.7% | +20 | +1.4pp |
| Total | 1,566 | 100.0% | 100.0% | 1,762 | 100.0% | 100.0% | -196 | 0.0pp |