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, 10 to 14 year olds was the largest age group among residents in Cumbalum, accounting for 8.4% (185 people). This share was higher than Ballina (A) (6.1%). Since 2016, the biggest change was in 40 to 44 year olds, which increased by 84 people and 1.8 percentage points.
Section overview
Age structure - Five year age groups
Cumbalum - Total persons (Usual residence)
This table summarises five year age groups for Cumbalum in 2021 for persons, with comparison against Ballina (A) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Cumbalum, with comparison markers for Ballina (A).
0 to 4
2021 count
146
% of total
6.6%
Change from 2016
-2.1pp
146
6.6%
-2.1pp
5 to 9
2021 count
174
% of total
7.9%
Change from 2016
-0.1pp
174
7.9%
-0.1pp
10 to 14
2021 count
185
% of total
8.4%
Change from 2016
+1.4pp
185
8.4%
+1.4pp
15 to 19
2021 count
138
% of total
6.2%
Change from 2016
+0.4pp
138
6.2%
+0.4pp
20 to 24
2021 count
107
% of total
4.8%
Change from 2016
+0.2pp
107
4.8%
+0.2pp
25 to 29
2021 count
90
% of total
4.1%
Change from 2016
-0.1pp
90
4.1%
-0.1pp
30 to 34
2021 count
172
% of total
7.8%
Change from 2016
+0.9pp
172
7.8%
+0.9pp
35 to 39
2021 count
164
% of total
7.4%
Change from 2016
-0.7pp
164
7.4%
-0.7pp
40 to 44
2021 count
185
% of total
8.4%
Change from 2016
+1.8pp
185
8.4%
+1.8pp
45 to 49
2021 count
155
% of total
7.0%
Change from 2016
-0.8pp
155
7.0%
-0.8pp
50 to 54
2021 count
152
% of total
6.9%
Change from 2016
-0.1pp
152
6.9%
-0.1pp
55 to 59
2021 count
131
% of total
5.9%
Change from 2016
-1.6pp
131
5.9%
-1.6pp
60 to 64
2021 count
109
% of total
4.9%
Change from 2016
-0.6pp
109
4.9%
-0.6pp
65 to 69
2021 count
119
% of total
5.4%
Change from 2016
+0.9pp
119
5.4%
+0.9pp
70 to 74
2021 count
90
% of total
4.1%
Change from 2016
+0.5pp
90
4.1%
+0.5pp
75 to 79
2021 count
57
% of total
2.6%
Change from 2016
+1.0pp
57
2.6%
+1.0pp
80 to 84
2021 count
26
% of total
1.2%
Change from 2016
+0.2pp
26
1.2%
+0.2pp
85 and over
2021 count
14
% of total
0.6%
Change from 2016
+0.4pp
14
0.6%
+0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+14
-2.1pp
5 to 9
+52
-0.1pp
10 to 14
+79
+1.4pp
15 to 19
+50
+0.4pp
20 to 24
+37
+0.2pp
25 to 29
+26
-0.1pp
30 to 34
+67
+0.9pp
35 to 39
+41
-0.7pp
40 to 44
+84
+1.8pp
45 to 49
+37
-0.8pp
50 to 54
+45
-0.1pp
55 to 59
+17
-1.6pp
60 to 64
+26
-0.6pp
65 to 69
+51
+0.9pp
70 to 74
+35
+0.5pp
75 to 79
+32
+1.0pp
80 to 84
+11
+0.2pp
85 and over
+11
+0.4pp
Data table
Five year age groups for Cumbalum. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Ballina (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Ballina (A)% | Count | % | Ballina (A)% | Count | pp | |
| 0 to 4 | 146 | 6.6% | 4.8% | 132 | 8.7% | 5.0% | +14 | -2.1pp |
| 5 to 9 | 174 | 7.9% | 5.5% | 122 | 8.0% | 5.8% | +52 | -0.1pp |
| 10 to 14 | 185 | 8.4% | 6.1% | 106 | 7.0% | 5.8% | +79 | +1.4pp |
| 15 to 19 | 138 | 6.2% | 5.2% | 88 | 5.8% | 5.7% | +50 | +0.4pp |
| 20 to 24 | 107 | 4.8% | 4.1% | 70 | 4.6% | 3.8% | +37 | +0.2pp |
| 25 to 29 | 90 | 4.1% | 4.2% | 64 | 4.2% | 3.9% | +26 | -0.1pp |
| 30 to 34 | 172 | 7.8% | 5.0% | 105 | 6.9% | 4.7% | +67 | +0.9pp |
| 35 to 39 | 164 | 7.4% | 5.6% | 123 | 8.1% | 5.0% | +41 | -0.7pp |
| 40 to 44 | 185 | 8.4% | 5.7% | 101 | 6.6% | 6.1% | +84 | +1.8pp |
| 45 to 49 | 155 | 7.0% | 6.3% | 118 | 7.8% | 6.7% | +37 | -0.8pp |
| 50 to 54 | 152 | 6.9% | 6.5% | 107 | 7.0% | 7.1% | +45 | -0.1pp |
| 55 to 59 | 131 | 5.9% | 6.8% | 114 | 7.5% | 7.7% | +17 | -1.6pp |
| 60 to 64 | 109 | 4.9% | 7.3% | 83 | 5.5% | 7.7% | +26 | -0.6pp |
| 65 to 69 | 119 | 5.4% | 7.6% | 68 | 4.5% | 7.5% | +51 | +0.9pp |
| 70 to 74 | 90 | 4.1% | 7.0% | 55 | 3.6% | 5.6% | +35 | +0.5pp |
| 75 to 79 | 57 | 2.6% | 5.0% | 25 | 1.6% | 4.4% | +32 | +1.0pp |
| 80 to 84 | 26 | 1.2% | 3.6% | 15 | 1.0% | 3.3% | +11 | +0.2pp |
| 85 and over | 14 | 0.6% | 4.0% | 3 | 0.2% | 4.2% | +11 | +0.4pp |
| Total | 2,211 | 100.0% | 100.0% | 1,522 | 100.0% | 100.0% | +689 | 0.0pp |