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, 45 to 49 year olds was the largest age group among residents in Cooroibah, accounting for 8.8% (192 people). This share was higher than Noosa (S) (7.1%). Since 2016, the biggest change was in 10 to 14 year olds, which increased by 39 people and 1.3 percentage points.
Section overview
Age structure - Five year age groups
Cooroibah - Total persons (Usual residence)
This table summarises five year age groups for Cooroibah in 2021 for persons, with comparison against Noosa (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Cooroibah, with comparison markers for Noosa (S).
0 to 4
2021 count
77
% of total
3.5%
Change from 2016
-1.2pp
77
3.5%
-1.2pp
5 to 9
2021 count
136
% of total
6.2%
Change from 2016
-0.4pp
136
6.2%
-0.4pp
10 to 14
2021 count
187
% of total
8.6%
Change from 2016
+1.3pp
187
8.6%
+1.3pp
15 to 19
2021 count
151
% of total
6.9%
Change from 2016
+0.5pp
151
6.9%
+0.5pp
20 to 24
2021 count
86
% of total
3.9%
Change from 2016
-0.7pp
86
3.9%
-0.7pp
25 to 29
2021 count
58
% of total
2.7%
Change from 2016
-0.8pp
58
2.7%
-0.8pp
30 to 34
2021 count
85
% of total
3.9%
Change from 2016
-0.1pp
85
3.9%
-0.1pp
35 to 39
2021 count
97
% of total
4.5%
Change from 2016
-0.8pp
97
4.5%
-0.8pp
40 to 44
2021 count
131
% of total
6.0%
Change from 2016
-0.9pp
131
6.0%
-0.9pp
45 to 49
2021 count
192
% of total
8.8%
Change from 2016
+0.5pp
192
8.8%
+0.5pp
50 to 54
2021 count
168
% of total
7.7%
Change from 2016
-1.6pp
168
7.7%
-1.6pp
55 to 59
2021 count
188
% of total
8.6%
Change from 2016
+0.7pp
188
8.6%
+0.7pp
60 to 64
2021 count
175
% of total
8.0%
Change from 2016
+1.0pp
175
8.0%
+1.0pp
65 to 69
2021 count
140
% of total
6.4%
Change from 2016
-1.4pp
140
6.4%
-1.4pp
70 to 74
2021 count
140
% of total
6.4%
Change from 2016
+1.4pp
140
6.4%
+1.4pp
75 to 79
2021 count
81
% of total
3.7%
Change from 2016
+0.6pp
81
3.7%
+0.6pp
80 to 84
2021 count
45
% of total
2.1%
Change from 2016
+1.3pp
45
2.1%
+1.3pp
85 and over
2021 count
11
% of total
0.5%
Change from 2016
-0.2pp
11
0.5%
-0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-19
-1.2pp
5 to 9
+1
-0.4pp
10 to 14
+39
+1.3pp
15 to 19
+21
+0.5pp
20 to 24
-8
-0.7pp
25 to 29
-13
-0.8pp
30 to 34
+3
-0.1pp
35 to 39
-11
-0.8pp
40 to 44
-10
-0.9pp
45 to 49
+22
+0.5pp
50 to 54
-21
-1.6pp
55 to 59
+27
+0.7pp
60 to 64
+32
+1.0pp
65 to 69
-19
-1.4pp
70 to 74
+37
+1.4pp
75 to 79
+18
+0.6pp
80 to 84
+28
+1.3pp
85 and over
-4
-0.2pp
Data table
Five year age groups for Cooroibah. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Noosa (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Noosa (S)% | Count | % | Noosa (S)% | Count | pp | |
| 0 to 4 | 77 | 3.5% | 3.6% | 96 | 4.7% | 4.2% | -19 | -1.2pp |
| 5 to 9 | 136 | 6.2% | 5.1% | 135 | 6.6% | 5.7% | +1 | -0.4pp |
| 10 to 14 | 187 | 8.6% | 6.2% | 148 | 7.3% | 6.3% | +39 | +1.3pp |
| 15 to 19 | 151 | 6.9% | 5.4% | 130 | 6.4% | 5.4% | +21 | +0.5pp |
| 20 to 24 | 86 | 3.9% | 3.4% | 94 | 4.6% | 3.5% | -8 | -0.7pp |
| 25 to 29 | 58 | 2.7% | 3.3% | 71 | 3.5% | 3.4% | -13 | -0.8pp |
| 30 to 34 | 85 | 3.9% | 4.0% | 82 | 4.0% | 4.0% | +3 | -0.1pp |
| 35 to 39 | 97 | 4.5% | 4.9% | 108 | 5.3% | 5.1% | -11 | -0.8pp |
| 40 to 44 | 131 | 6.0% | 5.7% | 141 | 6.9% | 6.7% | -10 | -0.9pp |
| 45 to 49 | 192 | 8.8% | 7.1% | 170 | 8.3% | 7.4% | +22 | +0.5pp |
| 50 to 54 | 168 | 7.7% | 7.4% | 189 | 9.3% | 7.9% | -21 | -1.6pp |
| 55 to 59 | 188 | 8.6% | 7.9% | 161 | 7.9% | 8.1% | +27 | +0.7pp |
| 60 to 64 | 175 | 8.0% | 8.3% | 143 | 7.0% | 8.1% | +32 | +1.0pp |
| 65 to 69 | 140 | 6.4% | 8.0% | 159 | 7.8% | 8.3% | -19 | -1.4pp |
| 70 to 74 | 140 | 6.4% | 8.0% | 103 | 5.0% | 6.4% | +37 | +1.4pp |
| 75 to 79 | 81 | 3.7% | 5.6% | 63 | 3.1% | 4.2% | +18 | +0.6pp |
| 80 to 84 | 45 | 2.1% | 3.4% | 17 | 0.8% | 2.6% | +28 | +1.3pp |
| 85 and over | 11 | 0.5% | 2.9% | 15 | 0.7% | 2.6% | -4 | -0.2pp |
| Total | 2,178 | 100.0% | 100.0% | 2,041 | 100.0% | 100.0% | +137 | 0.0pp |