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 Thursday Island, accounting for 9.9% (277 people). This share was similar to Torres (S) (10.1%). Since 2016, the biggest change was in 0 to 4 year olds, which decreased by 64 people and 1.9 percentage points.
Section overview
Age structure - Five year age groups
Thursday Island - Total persons (Usual residence)
This table summarises five year age groups for Thursday Island in 2021 for persons, with comparison against Torres (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Thursday Island, with comparison markers for Torres (S).
0 to 4
2021 count
211
% of total
7.5%
Change from 2016
-1.9pp
211
7.5%
-1.9pp
5 to 9
2021 count
260
% of total
9.3%
Change from 2016
+0.1pp
260
9.3%
+0.1pp
10 to 14
2021 count
277
% of total
9.9%
Change from 2016
+0.1pp
277
9.9%
+0.1pp
15 to 19
2021 count
232
% of total
8.3%
Change from 2016
+0.4pp
232
8.3%
+0.4pp
20 to 24
2021 count
206
% of total
7.3%
Change from 2016
-0.7pp
206
7.3%
-0.7pp
25 to 29
2021 count
206
% of total
7.3%
Change from 2016
-1.4pp
206
7.3%
-1.4pp
30 to 34
2021 count
204
% of total
7.3%
Change from 2016
-0.9pp
204
7.3%
-0.9pp
35 to 39
2021 count
212
% of total
7.6%
Change from 2016
+0.6pp
212
7.6%
+0.6pp
40 to 44
2021 count
179
% of total
6.4%
Change from 2016
-0.4pp
179
6.4%
-0.4pp
45 to 49
2021 count
163
% of total
5.8%
Change from 2016
+0.5pp
163
5.8%
+0.5pp
50 to 54
2021 count
154
% of total
5.5%
Change from 2016
-0.6pp
154
5.5%
-0.6pp
55 to 59
2021 count
142
% of total
5.1%
Change from 2016
0.0pp
142
5.1%
0.0pp
60 to 64
2021 count
139
% of total
5.0%
Change from 2016
+1.2pp
139
5.0%
+1.2pp
65 to 69
2021 count
101
% of total
3.6%
Change from 2016
+1.4pp
101
3.6%
+1.4pp
70 to 74
2021 count
41
% of total
1.5%
Change from 2016
+0.4pp
41
1.5%
+0.4pp
75 to 79
2021 count
22
% of total
0.8%
Change from 2016
-0.2pp
22
0.8%
-0.2pp
80 to 84
2021 count
23
% of total
0.8%
Change from 2016
+0.3pp
23
0.8%
+0.3pp
85 and over
2021 count
13
% of total
0.5%
Change from 2016
+0.2pp
13
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
-64
-1.9pp
5 to 9
-11
+0.1pp
10 to 14
-10
+0.1pp
15 to 19
+1
+0.4pp
20 to 24
-29
-0.7pp
25 to 29
-50
-1.4pp
30 to 34
-36
-0.9pp
35 to 39
+6
+0.6pp
40 to 44
-21
-0.4pp
45 to 49
+8
+0.5pp
50 to 54
-25
-0.6pp
55 to 59
-8
0.0pp
60 to 64
+27
+1.2pp
65 to 69
+35
+1.4pp
70 to 74
+8
+0.4pp
75 to 79
-8
-0.2pp
80 to 84
+9
+0.3pp
85 and over
+3
+0.2pp
Data table
Five year age groups for Thursday Island. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Torres (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Torres (S)% | Count | % | Torres (S)% | Count | pp | |
| 0 to 4 | 211 | 7.5% | 7.8% | 275 | 9.4% | 8.4% | -64 | -1.9pp |
| 5 to 9 | 260 | 9.3% | 8.7% | 271 | 9.2% | 9.4% | -11 | +0.1pp |
| 10 to 14 | 277 | 9.9% | 10.1% | 287 | 9.8% | 9.3% | -10 | +0.1pp |
| 15 to 19 | 232 | 8.3% | 8.0% | 231 | 7.9% | 8.0% | +1 | +0.4pp |
| 20 to 24 | 206 | 7.3% | 7.5% | 235 | 8.0% | 8.1% | -29 | -0.7pp |
| 25 to 29 | 206 | 7.3% | 7.8% | 256 | 8.7% | 9.0% | -50 | -1.4pp |
| 30 to 34 | 204 | 7.3% | 7.5% | 240 | 8.2% | 8.3% | -36 | -0.9pp |
| 35 to 39 | 212 | 7.6% | 7.3% | 206 | 7.0% | 6.8% | +6 | +0.6pp |
| 40 to 44 | 179 | 6.4% | 5.9% | 200 | 6.8% | 6.6% | -21 | -0.4pp |
| 45 to 49 | 163 | 5.8% | 6.0% | 155 | 5.3% | 5.3% | +8 | +0.5pp |
| 50 to 54 | 154 | 5.5% | 5.5% | 179 | 6.1% | 5.8% | -25 | -0.6pp |
| 55 to 59 | 142 | 5.1% | 5.0% | 150 | 5.1% | 5.8% | -8 | 0.0pp |
| 60 to 64 | 139 | 5.0% | 5.3% | 112 | 3.8% | 4.0% | +27 | +1.2pp |
| 65 to 69 | 101 | 3.6% | 3.8% | 66 | 2.2% | 2.4% | +35 | +1.4pp |
| 70 to 74 | 41 | 1.5% | 2.0% | 33 | 1.1% | 1.3% | +8 | +0.4pp |
| 75 to 79 | 22 | 0.8% | 0.8% | 30 | 1.0% | 0.9% | -8 | -0.2pp |
| 80 to 84 | 23 | 0.8% | 0.6% | 14 | 0.5% | 0.4% | +9 | +0.3pp |
| 85 and over | 13 | 0.5% | 0.3% | 10 | 0.3% | 0.5% | +3 | +0.2pp |
| Total | 2,805 | 100.0% | 100.0% | 2,938 | 100.0% | 100.0% | -133 | 0.0pp |