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, 50 to 54 year olds was the largest age group among residents in Armstrong Beach, accounting for 9.2% (83 people). This share was higher than Mackay (R) (6.9%). Since 2016, the biggest change was in 75 to 79 year olds, which increased by 22 people and 2.4 percentage points.
Section overview
Age structure - Five year age groups
Armstrong Beach - Total persons (Usual residence)
This table summarises five year age groups for Armstrong Beach in 2021 for persons, with comparison against Mackay (R) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Armstrong Beach, with comparison markers for Mackay (R).
0 to 4
2021 count
55
% of total
6.1%
Change from 2016
+0.2pp
55
6.1%
+0.2pp
5 to 9
2021 count
56
% of total
6.2%
Change from 2016
-1.7pp
56
6.2%
-1.7pp
10 to 14
2021 count
68
% of total
7.5%
Change from 2016
+1.6pp
68
7.5%
+1.6pp
15 to 19
2021 count
60
% of total
6.6%
Change from 2016
+0.3pp
60
6.6%
+0.3pp
20 to 24
2021 count
35
% of total
3.9%
Change from 2016
+0.7pp
35
3.9%
+0.7pp
25 to 29
2021 count
49
% of total
5.4%
Change from 2016
-1.4pp
49
5.4%
-1.4pp
30 to 34
2021 count
56
% of total
6.2%
Change from 2016
-0.2pp
56
6.2%
-0.2pp
35 to 39
2021 count
64
% of total
7.1%
Change from 2016
+1.0pp
64
7.1%
+1.0pp
40 to 44
2021 count
64
% of total
7.1%
Change from 2016
0.0pp
64
7.1%
0.0pp
45 to 49
2021 count
56
% of total
6.2%
Change from 2016
-1.6pp
56
6.2%
-1.6pp
50 to 54
2021 count
83
% of total
9.2%
Change from 2016
+1.4pp
83
9.2%
+1.4pp
55 to 59
2021 count
53
% of total
5.9%
Change from 2016
+0.7pp
53
5.9%
+0.7pp
60 to 64
2021 count
60
% of total
6.6%
Change from 2016
+1.5pp
60
6.6%
+1.5pp
65 to 69
2021 count
60
% of total
6.6%
Change from 2016
+1.8pp
60
6.6%
+1.8pp
70 to 74
2021 count
44
% of total
4.9%
Change from 2016
-0.2pp
44
4.9%
-0.2pp
75 to 79
2021 count
35
% of total
3.9%
Change from 2016
+2.4pp
35
3.9%
+2.4pp
80 to 84
2021 count
10
% of total
1.1%
Change from 2016
+0.4pp
10
1.1%
+0.4pp
85 and over
2021 count
4
% of total
0.4%
Change from 2016
-0.4pp
4
0.4%
-0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+4
+0.2pp
5 to 9
-12
-1.7pp
10 to 14
+17
+1.6pp
15 to 19
+6
+0.3pp
20 to 24
+7
+0.7pp
25 to 29
-10
-1.4pp
30 to 34
+1
-0.2pp
35 to 39
+11
+1.0pp
40 to 44
+3
0.0pp
45 to 49
-11
-1.6pp
50 to 54
+16
+1.4pp
55 to 59
+8
+0.7pp
60 to 64
+16
+1.5pp
65 to 69
+19
+1.8pp
70 to 74
0
-0.2pp
75 to 79
+22
+2.4pp
80 to 84
+4
+0.4pp
85 and over
-3
-0.4pp
Data table
Five year age groups for Armstrong Beach. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mackay (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mackay (R)% | Count | % | Mackay (R)% | Count | pp | |
| 0 to 4 | 55 | 6.1% | 6.2% | 51 | 5.9% | 6.7% | +4 | +0.2pp |
| 5 to 9 | 56 | 6.2% | 6.8% | 68 | 7.9% | 7.1% | -12 | -1.7pp |
| 10 to 14 | 68 | 7.5% | 7.2% | 51 | 5.9% | 6.8% | +17 | +1.6pp |
| 15 to 19 | 60 | 6.6% | 6.1% | 54 | 6.3% | 6.3% | +6 | +0.3pp |
| 20 to 24 | 35 | 3.9% | 5.7% | 28 | 3.2% | 5.8% | +7 | +0.7pp |
| 25 to 29 | 49 | 5.4% | 6.3% | 59 | 6.8% | 6.5% | -10 | -1.4pp |
| 30 to 34 | 56 | 6.2% | 6.5% | 55 | 6.4% | 7.0% | +1 | -0.2pp |
| 35 to 39 | 64 | 7.1% | 7.0% | 53 | 6.1% | 6.4% | +11 | +1.0pp |
| 40 to 44 | 64 | 7.1% | 6.3% | 61 | 7.1% | 6.9% | +3 | 0.0pp |
| 45 to 49 | 56 | 6.2% | 6.6% | 67 | 7.8% | 7.4% | -11 | -1.6pp |
| 50 to 54 | 83 | 9.2% | 6.9% | 67 | 7.8% | 7.4% | +16 | +1.4pp |
| 55 to 59 | 53 | 5.9% | 6.9% | 45 | 5.2% | 6.9% | +8 | +0.7pp |
| 60 to 64 | 60 | 6.6% | 6.3% | 44 | 5.1% | 5.6% | +16 | +1.5pp |
| 65 to 69 | 60 | 6.6% | 5.1% | 41 | 4.8% | 4.5% | +19 | +1.8pp |
| 70 to 74 | 44 | 4.9% | 4.0% | 44 | 5.1% | 3.3% | 0 | -0.2pp |
| 75 to 79 | 35 | 3.9% | 2.8% | 13 | 1.5% | 2.3% | +22 | +2.4pp |
| 80 to 84 | 10 | 1.1% | 1.7% | 6 | 0.7% | 1.6% | +4 | +0.4pp |
| 85 and over | 4 | 0.4% | 1.6% | 7 | 0.8% | 1.4% | -3 | -0.4pp |
| Total | 903 | 100.0% | 100.0% | 863 | 100.0% | 100.0% | +40 | 0.0pp |