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 Trinity Park, accounting for 8.2% (289 people). This share was higher than Cairns (R) (7%). Since 2016, the biggest change was in 10 to 14 year olds, which increased by 82 people and 1.5 percentage points.
Section overview
Age structure - Five year age groups
Trinity Park - Total persons (Usual residence)
This table summarises five year age groups for Trinity Park in 2021 for persons, with comparison against Cairns (R) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Trinity Park, with comparison markers for Cairns (R).
0 to 4
2021 count
238
% of total
6.7%
Change from 2016
-2.1pp
238
6.7%
-2.1pp
5 to 9
2021 count
276
% of total
7.8%
Change from 2016
+0.3pp
276
7.8%
+0.3pp
10 to 14
2021 count
289
% of total
8.2%
Change from 2016
+1.5pp
289
8.2%
+1.5pp
15 to 19
2021 count
248
% of total
7.0%
Change from 2016
+0.4pp
248
7.0%
+0.4pp
20 to 24
2021 count
160
% of total
4.5%
Change from 2016
-1.7pp
160
4.5%
-1.7pp
25 to 29
2021 count
216
% of total
6.1%
Change from 2016
-1.2pp
216
6.1%
-1.2pp
30 to 34
2021 count
271
% of total
7.7%
Change from 2016
-1.2pp
271
7.7%
-1.2pp
35 to 39
2021 count
284
% of total
8.0%
Change from 2016
-0.1pp
284
8.0%
-0.1pp
40 to 44
2021 count
280
% of total
7.9%
Change from 2016
0.0pp
280
7.9%
0.0pp
45 to 49
2021 count
268
% of total
7.6%
Change from 2016
-0.2pp
268
7.6%
-0.2pp
50 to 54
2021 count
216
% of total
6.1%
Change from 2016
-0.7pp
216
6.1%
-0.7pp
55 to 59
2021 count
217
% of total
6.1%
Change from 2016
-0.1pp
217
6.1%
-0.1pp
60 to 64
2021 count
170
% of total
4.8%
Change from 2016
+0.7pp
170
4.8%
+0.7pp
65 to 69
2021 count
143
% of total
4.0%
Change from 2016
+0.4pp
143
4.0%
+0.4pp
70 to 74
2021 count
117
% of total
3.3%
Change from 2016
+0.8pp
117
3.3%
+0.8pp
75 to 79
2021 count
79
% of total
2.2%
Change from 2016
+0.8pp
79
2.2%
+0.8pp
80 to 84
2021 count
35
% of total
1.0%
Change from 2016
+0.7pp
35
1.0%
+0.7pp
85 and over
2021 count
18
% of total
0.5%
Change from 2016
+0.3pp
18
0.5%
+0.3pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-34
-2.1pp
5 to 9
+43
+0.3pp
10 to 14
+82
+1.5pp
15 to 19
+43
+0.4pp
20 to 24
-31
-1.7pp
25 to 29
-11
-1.2pp
30 to 34
-5
-1.2pp
35 to 39
+33
-0.1pp
40 to 44
+35
0.0pp
45 to 49
+27
-0.2pp
50 to 54
+6
-0.7pp
55 to 59
+25
-0.1pp
60 to 64
+42
+0.7pp
65 to 69
+30
+0.4pp
70 to 74
+39
+0.8pp
75 to 79
+34
+0.8pp
80 to 84
+27
+0.7pp
85 and over
+11
+0.3pp
Data table
Five year age groups for Trinity Park. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Cairns (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Cairns (R)% | Count | % | Cairns (R)% | Count | pp | |
| 0 to 4 | 238 | 6.7% | 5.5% | 272 | 8.8% | 6.5% | -34 | -2.1pp |
| 5 to 9 | 276 | 7.8% | 6.5% | 233 | 7.5% | 7.1% | +43 | +0.3pp |
| 10 to 14 | 289 | 8.2% | 7.0% | 207 | 6.7% | 6.8% | +82 | +1.5pp |
| 15 to 19 | 248 | 7.0% | 6.2% | 205 | 6.6% | 6.3% | +43 | +0.4pp |
| 20 to 24 | 160 | 4.5% | 5.5% | 191 | 6.2% | 5.8% | -31 | -1.7pp |
| 25 to 29 | 216 | 6.1% | 6.4% | 227 | 7.3% | 6.6% | -11 | -1.2pp |
| 30 to 34 | 271 | 7.7% | 6.8% | 276 | 8.9% | 7.0% | -5 | -1.2pp |
| 35 to 39 | 284 | 8.0% | 6.8% | 251 | 8.1% | 7.0% | +33 | -0.1pp |
| 40 to 44 | 280 | 7.9% | 6.9% | 245 | 7.9% | 7.5% | +35 | 0.0pp |
| 45 to 49 | 268 | 7.6% | 7.2% | 241 | 7.8% | 7.5% | +27 | -0.2pp |
| 50 to 54 | 216 | 6.1% | 7.0% | 210 | 6.8% | 7.1% | +6 | -0.7pp |
| 55 to 59 | 217 | 6.1% | 6.6% | 192 | 6.2% | 6.5% | +25 | -0.1pp |
| 60 to 64 | 170 | 4.8% | 6.0% | 128 | 4.1% | 5.6% | +42 | +0.7pp |
| 65 to 69 | 143 | 4.0% | 5.2% | 113 | 3.6% | 4.8% | +30 | +0.4pp |
| 70 to 74 | 117 | 3.3% | 4.4% | 78 | 2.5% | 3.2% | +39 | +0.8pp |
| 75 to 79 | 79 | 2.2% | 2.8% | 45 | 1.4% | 2.1% | +34 | +0.8pp |
| 80 to 84 | 35 | 1.0% | 1.6% | 8 | 0.3% | 1.3% | +27 | +0.7pp |
| 85 and over | 18 | 0.5% | 1.5% | 7 | 0.2% | 1.3% | +11 | +0.3pp |
| Total | 3,536 | 100.0% | 100.0% | 3,108 | 100.0% | 100.0% | +428 | 0.0pp |