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 Bentley Park, accounting for 9.2% (772 people). This share was higher than Cairns (R) (7%). Since 2016, the biggest change was in 50 to 54 year olds, which increased by 108 people and 1.1 percentage points.
Section overview
Age structure - Five year age groups
Bentley Park - Total persons (Usual residence)
This table summarises five year age groups for Bentley 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 Bentley Park, with comparison markers for Cairns (R).
0 to 4
2021 count
636
% of total
7.6%
Change from 2016
-1.5pp
636
7.6%
-1.5pp
5 to 9
2021 count
758
% of total
9.1%
Change from 2016
-1.3pp
758
9.1%
-1.3pp
10 to 14
2021 count
772
% of total
9.2%
Change from 2016
+0.7pp
772
9.2%
+0.7pp
15 to 19
2021 count
645
% of total
7.7%
Change from 2016
0.0pp
645
7.7%
0.0pp
20 to 24
2021 count
502
% of total
6.0%
Change from 2016
-0.1pp
502
6.0%
-0.1pp
25 to 29
2021 count
596
% of total
7.1%
Change from 2016
-0.3pp
596
7.1%
-0.3pp
30 to 34
2021 count
635
% of total
7.6%
Change from 2016
-0.4pp
635
7.6%
-0.4pp
35 to 39
2021 count
642
% of total
7.7%
Change from 2016
-0.3pp
642
7.7%
-0.3pp
40 to 44
2021 count
596
% of total
7.1%
Change from 2016
-0.1pp
596
7.1%
-0.1pp
45 to 49
2021 count
522
% of total
6.2%
Change from 2016
-0.8pp
522
6.2%
-0.8pp
50 to 54
2021 count
544
% of total
6.5%
Change from 2016
+1.1pp
544
6.5%
+1.1pp
55 to 59
2021 count
401
% of total
4.8%
Change from 2016
+0.1pp
401
4.8%
+0.1pp
60 to 64
2021 count
377
% of total
4.5%
Change from 2016
+0.7pp
377
4.5%
+0.7pp
65 to 69
2021 count
259
% of total
3.1%
Change from 2016
+0.2pp
259
3.1%
+0.2pp
70 to 74
2021 count
223
% of total
2.7%
Change from 2016
+0.6pp
223
2.7%
+0.6pp
75 to 79
2021 count
140
% of total
1.7%
Change from 2016
+0.5pp
140
1.7%
+0.5pp
80 to 84
2021 count
94
% of total
1.1%
Change from 2016
+0.6pp
94
1.1%
+0.6pp
85 and over
2021 count
26
% of total
0.3%
Change from 2016
+0.1pp
26
0.3%
+0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-90
-1.5pp
5 to 9
-73
-1.3pp
10 to 14
+93
+0.7pp
15 to 19
+30
0.0pp
20 to 24
+13
-0.1pp
25 to 29
+3
-0.3pp
30 to 34
-7
-0.4pp
35 to 39
+3
-0.3pp
40 to 44
+22
-0.1pp
45 to 49
-41
-0.8pp
50 to 54
+108
+1.1pp
55 to 59
+23
+0.1pp
60 to 64
+74
+0.7pp
65 to 69
+24
+0.2pp
70 to 74
+56
+0.6pp
75 to 79
+43
+0.5pp
80 to 84
+57
+0.6pp
85 and over
+10
+0.1pp
Data table
Five year age groups for Bentley 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 | 636 | 7.6% | 5.5% | 726 | 9.1% | 6.5% | -90 | -1.5pp |
| 5 to 9 | 758 | 9.1% | 6.5% | 831 | 10.4% | 7.1% | -73 | -1.3pp |
| 10 to 14 | 772 | 9.2% | 7.0% | 679 | 8.5% | 6.8% | +93 | +0.7pp |
| 15 to 19 | 645 | 7.7% | 6.2% | 615 | 7.7% | 6.3% | +30 | 0.0pp |
| 20 to 24 | 502 | 6.0% | 5.5% | 489 | 6.1% | 5.8% | +13 | -0.1pp |
| 25 to 29 | 596 | 7.1% | 6.4% | 593 | 7.4% | 6.6% | +3 | -0.3pp |
| 30 to 34 | 635 | 7.6% | 6.8% | 642 | 8.0% | 7.0% | -7 | -0.4pp |
| 35 to 39 | 642 | 7.7% | 6.8% | 639 | 8.0% | 7.0% | +3 | -0.3pp |
| 40 to 44 | 596 | 7.1% | 6.9% | 574 | 7.2% | 7.5% | +22 | -0.1pp |
| 45 to 49 | 522 | 6.2% | 7.2% | 563 | 7.0% | 7.5% | -41 | -0.8pp |
| 50 to 54 | 544 | 6.5% | 7.0% | 436 | 5.4% | 7.1% | +108 | +1.1pp |
| 55 to 59 | 401 | 4.8% | 6.6% | 378 | 4.7% | 6.5% | +23 | +0.1pp |
| 60 to 64 | 377 | 4.5% | 6.0% | 303 | 3.8% | 5.6% | +74 | +0.7pp |
| 65 to 69 | 259 | 3.1% | 5.2% | 235 | 2.9% | 4.8% | +24 | +0.2pp |
| 70 to 74 | 223 | 2.7% | 4.4% | 167 | 2.1% | 3.2% | +56 | +0.6pp |
| 75 to 79 | 140 | 1.7% | 2.8% | 97 | 1.2% | 2.1% | +43 | +0.5pp |
| 80 to 84 | 94 | 1.1% | 1.6% | 37 | 0.5% | 1.3% | +57 | +0.6pp |
| 85 and over | 26 | 0.3% | 1.5% | 16 | 0.2% | 1.3% | +10 | +0.1pp |
| Total | 8,360 | 100.0% | 100.0% | 8,018 | 100.0% | 100.0% | +342 | 0.0pp |