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, 0 to 4 year olds was the largest age group among residents in Burt Plain, accounting for 13.5% (31 people). This share was higher than MacDonnell (R) (7.6%). Since 2016, the biggest change was in 20 to 24 year olds, which decreased by 68 people and 26.7 percentage points.
Section overview
Age structure - Five year age groups
Burt Plain - Total persons (Usual residence)
This table summarises five year age groups for Burt Plain in 2021 for persons, with comparison against MacDonnell (R) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Burt Plain, with comparison markers for MacDonnell (R).
0 to 4
2021 count
31
% of total
13.5%
Change from 2016
+7.5pp
31
13.5%
+7.5pp
5 to 9
2021 count
16
% of total
7.0%
Change from 2016
+5.8pp
16
7.0%
+5.8pp
10 to 14
2021 count
11
% of total
4.8%
Change from 2016
0.0pp
11
4.8%
0.0pp
15 to 19
2021 count
5
% of total
2.2%
Change from 2016
-9.0pp
5
2.2%
-9.0pp
20 to 24
2021 count
15
% of total
6.5%
Change from 2016
-26.7pp
15
6.5%
-26.7pp
25 to 29
2021 count
6
% of total
2.6%
Change from 2016
-1.8pp
6
2.6%
-1.8pp
30 to 34
2021 count
13
% of total
5.7%
Change from 2016
+3.3pp
13
5.7%
+3.3pp
35 to 39
2021 count
15
% of total
6.5%
Change from 2016
+2.5pp
15
6.5%
+2.5pp
40 to 44
2021 count
17
% of total
7.4%
Change from 2016
-1.0pp
17
7.4%
-1.0pp
45 to 49
2021 count
24
% of total
10.4%
Change from 2016
+5.6pp
24
10.4%
+5.6pp
50 to 54
2021 count
10
% of total
4.3%
Change from 2016
-0.9pp
10
4.3%
-0.9pp
55 to 59
2021 count
16
% of total
7.0%
Change from 2016
+4.6pp
16
7.0%
+4.6pp
60 to 64
2021 count
19
% of total
8.3%
Change from 2016
+5.5pp
19
8.3%
+5.5pp
65 to 69
2021 count
4
% of total
1.7%
Change from 2016
-0.7pp
4
1.7%
-0.7pp
70 to 74
2021 count
8
% of total
3.5%
Change from 2016
+3.5pp
8
3.5%
+3.5pp
75 to 79
2021 count
0
% of total
0.0%
Change from 2016
-1.2pp
0
0.0%
-1.2pp
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
+16
+7.5pp
5 to 9
+13
+5.8pp
10 to 14
-1
0.0pp
15 to 19
-23
-9.0pp
20 to 24
-68
-26.7pp
25 to 29
-5
-1.8pp
30 to 34
+7
+3.3pp
35 to 39
+5
+2.5pp
40 to 44
-4
-1.0pp
45 to 49
+12
+5.6pp
50 to 54
-3
-0.9pp
55 to 59
+10
+4.6pp
60 to 64
+12
+5.5pp
65 to 69
-2
-0.7pp
70 to 74
+8
+3.5pp
75 to 79
-3
-1.2pp
80 to 84
0
0.0pp
85 and over
0
0.0pp
Data table
Five year age groups for Burt Plain. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with MacDonnell (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | MacDonnell (R)% | Count | % | MacDonnell (R)% | Count | pp | |
| 0 to 4 | 31 | 13.5% | 7.6% | 15 | 6.0% | 6.9% | +16 | +7.5pp |
| 5 to 9 | 16 | 7.0% | 7.6% | 3 | 1.2% | 7.2% | +13 | +5.8pp |
| 10 to 14 | 11 | 4.8% | 7.6% | 12 | 4.8% | 6.6% | -1 | 0.0pp |
| 15 to 19 | 5 | 2.2% | 6.7% | 28 | 11.2% | 9.5% | -23 | -9.0pp |
| 20 to 24 | 15 | 6.5% | 9.1% | 83 | 33.2% | 12.2% | -68 | -26.7pp |
| 25 to 29 | 6 | 2.6% | 9.4% | 11 | 4.4% | 9.8% | -5 | -1.8pp |
| 30 to 34 | 13 | 5.7% | 9.8% | 6 | 2.4% | 8.8% | +7 | +3.3pp |
| 35 to 39 | 15 | 6.5% | 9.0% | 10 | 4.0% | 7.0% | +5 | +2.5pp |
| 40 to 44 | 17 | 7.4% | 7.1% | 21 | 8.4% | 7.1% | -4 | -1.0pp |
| 45 to 49 | 24 | 10.4% | 6.5% | 12 | 4.8% | 6.6% | +12 | +5.6pp |
| 50 to 54 | 10 | 4.3% | 5.8% | 13 | 5.2% | 5.1% | -3 | -0.9pp |
| 55 to 59 | 16 | 7.0% | 4.5% | 6 | 2.4% | 5.0% | +10 | +4.6pp |
| 60 to 64 | 19 | 8.3% | 3.9% | 7 | 2.8% | 3.3% | +12 | +5.5pp |
| 65 to 69 | 4 | 1.7% | 2.3% | 6 | 2.4% | 2.1% | -2 | -0.7pp |
| 70 to 74 | 8 | 3.5% | 1.8% | 0 | 0.0% | 1.0% | +8 | +3.5pp |
| 75 to 79 | 0 | 0.0% | 0.6% | 3 | 1.2% | 0.6% | -3 | -1.2pp |
| 80 to 84 | 0 | 0.0% | 0.3% | 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 | 230 | 100.0% | 100.0% | 250 | 100.0% | 100.0% | -20 | 0.0pp |