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 Alpurrurulam, accounting for 12.3% (43 people). This share was higher than Barkly (R) (7.5%). Since 2016, the biggest change was in 5 to 9 year olds, which decreased by 14 people and 1.5 percentage points.
Section overview
Age structure - Five year age groups
Alpurrurulam - Total persons (Usual residence)
This table summarises five year age groups for Alpurrurulam in 2021 for persons, with comparison against Barkly (R) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Alpurrurulam, with comparison markers for Barkly (R).
0 to 4
2021 count
33
% of total
9.4%
Change from 2016
+0.1pp
33
9.4%
+0.1pp
5 to 9
2021 count
39
% of total
11.1%
Change from 2016
-1.5pp
39
11.1%
-1.5pp
10 to 14
2021 count
43
% of total
12.3%
Change from 2016
+2.3pp
43
12.3%
+2.3pp
15 to 19
2021 count
37
% of total
10.6%
Change from 2016
+1.6pp
37
10.6%
+1.6pp
20 to 24
2021 count
34
% of total
9.7%
Change from 2016
-1.0pp
34
9.7%
-1.0pp
25 to 29
2021 count
36
% of total
10.3%
Change from 2016
-1.1pp
36
10.3%
-1.1pp
30 to 34
2021 count
38
% of total
10.9%
Change from 2016
+2.3pp
38
10.9%
+2.3pp
35 to 39
2021 count
30
% of total
8.6%
Change from 2016
+4.1pp
30
8.6%
+4.1pp
40 to 44
2021 count
26
% of total
7.4%
Change from 2016
+4.5pp
26
7.4%
+4.5pp
45 to 49
2021 count
19
% of total
5.4%
Change from 2016
+1.8pp
19
5.4%
+1.8pp
50 to 54
2021 count
24
% of total
6.9%
Change from 2016
+2.1pp
24
6.9%
+2.1pp
55 to 59
2021 count
12
% of total
3.4%
Change from 2016
-0.9pp
12
3.4%
-0.9pp
60 to 64
2021 count
14
% of total
4.0%
Change from 2016
0.0pp
14
4.0%
0.0pp
65 to 69
2021 count
6
% of total
1.7%
Change from 2016
+1.0pp
6
1.7%
+1.0pp
70 to 74
2021 count
0
% of total
0.0%
Change from 2016
-0.7pp
0
0.0%
-0.7pp
75 to 79
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
80 to 84
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
85 and over
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-6
+0.1pp
5 to 9
-14
-1.5pp
10 to 14
+1
+2.3pp
15 to 19
-1
+1.6pp
20 to 24
-11
-1.0pp
25 to 29
-12
-1.1pp
30 to 34
+2
+2.3pp
35 to 39
+11
+4.1pp
40 to 44
+14
+4.5pp
45 to 49
+4
+1.8pp
50 to 54
+4
+2.1pp
55 to 59
-6
-0.9pp
60 to 64
-3
0.0pp
65 to 69
+3
+1.0pp
70 to 74
-3
-0.7pp
75 to 79
0
0.0pp
80 to 84
0
0.0pp
85 and over
0
0.0pp
Data table
Five year age groups for Alpurrurulam. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Barkly (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Barkly (R)% | Count | % | Barkly (R)% | Count | pp | |
| 0 to 4 | 33 | 9.4% | 8.9% | 39 | 9.3% | 9.3% | -6 | +0.1pp |
| 5 to 9 | 39 | 11.1% | 8.7% | 53 | 12.6% | 9.2% | -14 | -1.5pp |
| 10 to 14 | 43 | 12.3% | 7.5% | 42 | 10.0% | 7.8% | +1 | +2.3pp |
| 15 to 19 | 37 | 10.6% | 7.6% | 38 | 9.0% | 7.3% | -1 | +1.6pp |
| 20 to 24 | 34 | 9.7% | 7.3% | 45 | 10.7% | 9.5% | -11 | -1.0pp |
| 25 to 29 | 36 | 10.3% | 9.5% | 48 | 11.4% | 9.2% | -12 | -1.1pp |
| 30 to 34 | 38 | 10.9% | 8.6% | 36 | 8.6% | 8.2% | +2 | +2.3pp |
| 35 to 39 | 30 | 8.6% | 7.3% | 19 | 4.5% | 6.5% | +11 | +4.1pp |
| 40 to 44 | 26 | 7.4% | 5.8% | 12 | 2.9% | 5.9% | +14 | +4.5pp |
| 45 to 49 | 19 | 5.4% | 5.6% | 15 | 3.6% | 6.6% | +4 | +1.8pp |
| 50 to 54 | 24 | 6.9% | 5.7% | 20 | 4.8% | 6.0% | +4 | +2.1pp |
| 55 to 59 | 12 | 3.4% | 5.3% | 18 | 4.3% | 4.6% | -6 | -0.9pp |
| 60 to 64 | 14 | 4.0% | 4.9% | 17 | 4.0% | 4.1% | -3 | 0.0pp |
| 65 to 69 | 6 | 1.7% | 3.4% | 3 | 0.7% | 2.7% | +3 | +1.0pp |
| 70 to 74 | 0 | 0.0% | 1.9% | 3 | 0.7% | 1.7% | -3 | -0.7pp |
| 75 to 79 | 0 | 0.0% | 1.0% | 0 | 0.0% | 1.0% | 0 | 0.0pp |
| 80 to 84 | 0 | 0.0% | 0.6% | 0 | 0.0% | 0.6% | 0 | 0.0pp |
| 85 and over | 0 | 0.0% | 0.2% | 0 | 0.0% | 0.3% | 0 | 0.0pp |
| Total | 350 | 100.0% | 100.0% | 420 | 100.0% | 100.0% | -70 | 0.0pp |