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, 60 to 64 year olds was the largest age group among residents in Booleroo Centre, accounting for 11% (53 people). This share was lower than Mount Remarkable (DC) (11.6%). Since 2016, the biggest change was in 45 to 49 year olds, which decreased by 31 people and 5.8 percentage points.
Section overview
Age structure - Five year age groups
Booleroo Centre - Total persons (Usual residence)
This table summarises five year age groups for Booleroo Centre in 2021 for persons, with comparison against Mount Remarkable (DC) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Booleroo Centre, with comparison markers for Mount Remarkable (DC).
0 to 4
2021 count
31
% of total
6.4%
Change from 2016
+1.0pp
31
6.4%
+1.0pp
5 to 9
2021 count
22
% of total
4.6%
Change from 2016
+0.9pp
22
4.6%
+0.9pp
10 to 14
2021 count
27
% of total
5.6%
Change from 2016
-2.3pp
27
5.6%
-2.3pp
15 to 19
2021 count
18
% of total
3.7%
Change from 2016
-1.7pp
18
3.7%
-1.7pp
20 to 24
2021 count
7
% of total
1.5%
Change from 2016
-1.6pp
7
1.5%
-1.6pp
25 to 29
2021 count
15
% of total
3.1%
Change from 2016
+0.8pp
15
3.1%
+0.8pp
30 to 34
2021 count
18
% of total
3.7%
Change from 2016
-0.8pp
18
3.7%
-0.8pp
35 to 39
2021 count
18
% of total
3.7%
Change from 2016
-3.5pp
18
3.7%
-3.5pp
40 to 44
2021 count
25
% of total
5.2%
Change from 2016
+0.7pp
25
5.2%
+0.7pp
45 to 49
2021 count
15
% of total
3.1%
Change from 2016
-5.8pp
15
3.1%
-5.8pp
50 to 54
2021 count
35
% of total
7.3%
Change from 2016
-0.3pp
35
7.3%
-0.3pp
55 to 59
2021 count
36
% of total
7.5%
Change from 2016
-0.3pp
36
7.5%
-0.3pp
60 to 64
2021 count
53
% of total
11.0%
Change from 2016
+3.6pp
53
11.0%
+3.6pp
65 to 69
2021 count
33
% of total
6.8%
Change from 2016
-1.0pp
33
6.8%
-1.0pp
70 to 74
2021 count
34
% of total
7.1%
Change from 2016
+2.4pp
34
7.1%
+2.4pp
75 to 79
2021 count
22
% of total
4.6%
Change from 2016
-1.6pp
22
4.6%
-1.6pp
80 to 84
2021 count
31
% of total
6.4%
Change from 2016
+2.7pp
31
6.4%
+2.7pp
85 and over
2021 count
44
% of total
9.1%
Change from 2016
+1.9pp
44
9.1%
+1.9pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+3
+1.0pp
5 to 9
+3
+0.9pp
10 to 14
-14
-2.3pp
15 to 19
-10
-1.7pp
20 to 24
-9
-1.6pp
25 to 29
+3
+0.8pp
30 to 34
-5
-0.8pp
35 to 39
-19
-3.5pp
40 to 44
+2
+0.7pp
45 to 49
-31
-5.8pp
50 to 54
-4
-0.3pp
55 to 59
-4
-0.3pp
60 to 64
+15
+3.6pp
65 to 69
-7
-1.0pp
70 to 74
+10
+2.4pp
75 to 79
-10
-1.6pp
80 to 84
+12
+2.7pp
85 and over
+7
+1.9pp
Data table
Five year age groups for Booleroo Centre. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mount Remarkable (DC).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mount Remarkable (DC)% | Count | % | Mount Remarkable (DC)% | Count | pp | |
| 0 to 4 | 31 | 6.4% | 3.9% | 28 | 5.4% | 3.9% | +3 | +1.0pp |
| 5 to 9 | 22 | 4.6% | 4.2% | 19 | 3.7% | 5.0% | +3 | +0.9pp |
| 10 to 14 | 27 | 5.6% | 5.6% | 41 | 7.9% | 5.1% | -14 | -2.3pp |
| 15 to 19 | 18 | 3.7% | 4.8% | 28 | 5.4% | 5.8% | -10 | -1.7pp |
| 20 to 24 | 7 | 1.5% | 2.6% | 16 | 3.1% | 3.1% | -9 | -1.6pp |
| 25 to 29 | 15 | 3.1% | 3.4% | 12 | 2.3% | 3.0% | +3 | +0.8pp |
| 30 to 34 | 18 | 3.7% | 3.8% | 23 | 4.5% | 3.4% | -5 | -0.8pp |
| 35 to 39 | 18 | 3.7% | 3.6% | 37 | 7.2% | 4.7% | -19 | -3.5pp |
| 40 to 44 | 25 | 5.2% | 4.5% | 23 | 4.5% | 4.4% | +2 | +0.7pp |
| 45 to 49 | 15 | 3.1% | 5.2% | 46 | 8.9% | 6.2% | -31 | -5.8pp |
| 50 to 54 | 35 | 7.3% | 7.1% | 39 | 7.6% | 9.0% | -4 | -0.3pp |
| 55 to 59 | 36 | 7.5% | 10.0% | 40 | 7.8% | 10.1% | -4 | -0.3pp |
| 60 to 64 | 53 | 11.0% | 11.6% | 38 | 7.4% | 9.3% | +15 | +3.6pp |
| 65 to 69 | 33 | 6.8% | 10.3% | 40 | 7.8% | 8.5% | -7 | -1.0pp |
| 70 to 74 | 34 | 7.1% | 7.4% | 24 | 4.7% | 7.3% | +10 | +2.4pp |
| 75 to 79 | 22 | 4.6% | 5.5% | 32 | 6.2% | 4.8% | -10 | -1.6pp |
| 80 to 84 | 31 | 6.4% | 3.9% | 19 | 3.7% | 3.0% | +12 | +2.7pp |
| 85 and over | 44 | 9.1% | 2.7% | 37 | 7.2% | 3.0% | +7 | +1.9pp |
| Total | 482 | 100.0% | 100.0% | 516 | 100.0% | 100.0% | -34 | 0.0pp |