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 Wilmington (part), accounting for 10.9% (73 people). This share was lower than Mount Remarkable (DC) (11.6%). Since 2016, the biggest change was in 50 to 54 year olds, which decreased by 28 people and 5.5 percentage points.
Section overview
Age structure - Five year age groups
Wilmington (part) - Total persons (Usual residence)
This table summarises five year age groups for Wilmington (part) 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 Wilmington (part), with comparison markers for Mount Remarkable (DC).
0 to 4
2021 count
46
% of total
6.9%
Change from 2016
+1.6pp
46
6.9%
+1.6pp
5 to 9
2021 count
36
% of total
5.4%
Change from 2016
-0.3pp
36
5.4%
-0.3pp
10 to 14
2021 count
39
% of total
5.8%
Change from 2016
+0.3pp
39
5.8%
+0.3pp
15 to 19
2021 count
35
% of total
5.2%
Change from 2016
-1.3pp
35
5.2%
-1.3pp
20 to 24
2021 count
21
% of total
3.1%
Change from 2016
-0.3pp
21
3.1%
-0.3pp
25 to 29
2021 count
20
% of total
3.0%
Change from 2016
-1.5pp
20
3.0%
-1.5pp
30 to 34
2021 count
34
% of total
5.1%
Change from 2016
+3.0pp
34
5.1%
+3.0pp
35 to 39
2021 count
30
% of total
4.5%
Change from 2016
-1.7pp
30
4.5%
-1.7pp
40 to 44
2021 count
38
% of total
5.7%
Change from 2016
-0.3pp
38
5.7%
-0.3pp
45 to 49
2021 count
36
% of total
5.4%
Change from 2016
+0.9pp
36
5.4%
+0.9pp
50 to 54
2021 count
32
% of total
4.8%
Change from 2016
-5.5pp
32
4.8%
-5.5pp
55 to 59
2021 count
72
% of total
10.8%
Change from 2016
+1.3pp
72
10.8%
+1.3pp
60 to 64
2021 count
73
% of total
10.9%
Change from 2016
+2.8pp
73
10.9%
+2.8pp
65 to 69
2021 count
58
% of total
8.7%
Change from 2016
-0.3pp
58
8.7%
-0.3pp
70 to 74
2021 count
49
% of total
7.3%
Change from 2016
+0.8pp
49
7.3%
+0.8pp
75 to 79
2021 count
27
% of total
4.0%
Change from 2016
-0.3pp
27
4.0%
-0.3pp
80 to 84
2021 count
26
% of total
3.9%
Change from 2016
+0.1pp
26
3.9%
+0.1pp
85 and over
2021 count
14
% of total
2.1%
Change from 2016
+0.4pp
14
2.1%
+0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+15
+1.6pp
5 to 9
+3
-0.3pp
10 to 14
+7
+0.3pp
15 to 19
-3
-1.3pp
20 to 24
+1
-0.3pp
25 to 29
-6
-1.5pp
30 to 34
+22
+3.0pp
35 to 39
-6
-1.7pp
40 to 44
+3
-0.3pp
45 to 49
+10
+0.9pp
50 to 54
-28
-5.5pp
55 to 59
+17
+1.3pp
60 to 64
+26
+2.8pp
65 to 69
+6
-0.3pp
70 to 74
+11
+0.8pp
75 to 79
+2
-0.3pp
80 to 84
+4
+0.1pp
85 and over
+4
+0.4pp
Data table
Five year age groups for Wilmington (part). 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 | 46 | 6.9% | 3.9% | 31 | 5.3% | 3.9% | +15 | +1.6pp |
| 5 to 9 | 36 | 5.4% | 4.2% | 33 | 5.7% | 5.0% | +3 | -0.3pp |
| 10 to 14 | 39 | 5.8% | 5.6% | 32 | 5.5% | 5.1% | +7 | +0.3pp |
| 15 to 19 | 35 | 5.2% | 4.8% | 38 | 6.5% | 5.8% | -3 | -1.3pp |
| 20 to 24 | 21 | 3.1% | 2.6% | 20 | 3.4% | 3.1% | +1 | -0.3pp |
| 25 to 29 | 20 | 3.0% | 3.4% | 26 | 4.5% | 3.0% | -6 | -1.5pp |
| 30 to 34 | 34 | 5.1% | 3.8% | 12 | 2.1% | 3.4% | +22 | +3.0pp |
| 35 to 39 | 30 | 4.5% | 3.6% | 36 | 6.2% | 4.7% | -6 | -1.7pp |
| 40 to 44 | 38 | 5.7% | 4.5% | 35 | 6.0% | 4.4% | +3 | -0.3pp |
| 45 to 49 | 36 | 5.4% | 5.2% | 26 | 4.5% | 6.2% | +10 | +0.9pp |
| 50 to 54 | 32 | 4.8% | 7.1% | 60 | 10.3% | 9.0% | -28 | -5.5pp |
| 55 to 59 | 72 | 10.8% | 10.0% | 55 | 9.5% | 10.1% | +17 | +1.3pp |
| 60 to 64 | 73 | 10.9% | 11.6% | 47 | 8.1% | 9.3% | +26 | +2.8pp |
| 65 to 69 | 58 | 8.7% | 10.3% | 52 | 9.0% | 8.5% | +6 | -0.3pp |
| 70 to 74 | 49 | 7.3% | 7.4% | 38 | 6.5% | 7.3% | +11 | +0.8pp |
| 75 to 79 | 27 | 4.0% | 5.5% | 25 | 4.3% | 4.8% | +2 | -0.3pp |
| 80 to 84 | 26 | 3.9% | 3.9% | 22 | 3.8% | 3.0% | +4 | +0.1pp |
| 85 and over | 14 | 2.1% | 2.7% | 10 | 1.7% | 3.0% | +4 | +0.4pp |
| Total | 667 | 100.0% | 100.0% | 581 | 100.0% | 100.0% | +86 | 0.0pp |