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, 55 to 59 year olds was the largest age group among residents in Lockhart (part), accounting for 8.3% (85 people). This share was higher than Lockhart (A) (8.1%). Since 2016, the biggest change was in 40 to 44 year olds, which decreased by 16 people and 1.4 percentage points.
Section overview
Age structure - Five year age groups
Lockhart (part) - Total persons (Usual residence)
This table summarises five year age groups for Lockhart (part) in 2021 for persons, with comparison against Lockhart (A) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Lockhart (part), with comparison markers for Lockhart (A).
0 to 4
2021 count
56
% of total
5.5%
Change from 2016
+0.3pp
56
5.5%
+0.3pp
5 to 9
2021 count
67
% of total
6.6%
Change from 2016
+0.6pp
67
6.6%
+0.6pp
10 to 14
2021 count
59
% of total
5.8%
Change from 2016
-1.2pp
59
5.8%
-1.2pp
15 to 19
2021 count
49
% of total
4.8%
Change from 2016
-0.2pp
49
4.8%
-0.2pp
20 to 24
2021 count
45
% of total
4.4%
Change from 2016
+0.2pp
45
4.4%
+0.2pp
25 to 29
2021 count
39
% of total
3.8%
Change from 2016
+0.1pp
39
3.8%
+0.1pp
30 to 34
2021 count
26
% of total
2.6%
Change from 2016
-1.2pp
26
2.6%
-1.2pp
35 to 39
2021 count
41
% of total
4.0%
Change from 2016
+0.5pp
41
4.0%
+0.5pp
40 to 44
2021 count
37
% of total
3.6%
Change from 2016
-1.4pp
37
3.6%
-1.4pp
45 to 49
2021 count
49
% of total
4.8%
Change from 2016
-0.6pp
49
4.8%
-0.6pp
50 to 54
2021 count
60
% of total
5.9%
Change from 2016
-1.0pp
60
5.9%
-1.0pp
55 to 59
2021 count
85
% of total
8.3%
Change from 2016
+0.4pp
85
8.3%
+0.4pp
60 to 64
2021 count
77
% of total
7.6%
Change from 2016
+0.5pp
77
7.6%
+0.5pp
65 to 69
2021 count
81
% of total
7.9%
Change from 2016
+0.9pp
81
7.9%
+0.9pp
70 to 74
2021 count
77
% of total
7.6%
Change from 2016
+1.2pp
77
7.6%
+1.2pp
75 to 79
2021 count
57
% of total
5.6%
Change from 2016
-0.2pp
57
5.6%
-0.2pp
80 to 84
2021 count
43
% of total
4.2%
Change from 2016
-0.1pp
43
4.2%
-0.1pp
85 and over
2021 count
58
% of total
5.7%
Change from 2016
+0.4pp
58
5.7%
+0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+1
+0.3pp
5 to 9
+3
+0.6pp
10 to 14
-15
-1.2pp
15 to 19
-4
-0.2pp
20 to 24
0
+0.2pp
25 to 29
0
+0.1pp
30 to 34
-14
-1.2pp
35 to 39
+4
+0.5pp
40 to 44
-16
-1.4pp
45 to 49
-8
-0.6pp
50 to 54
-13
-1.0pp
55 to 59
+1
+0.4pp
60 to 64
+2
+0.5pp
65 to 69
+7
+0.9pp
70 to 74
+9
+1.2pp
75 to 79
-5
-0.2pp
80 to 84
-3
-0.1pp
85 and over
+2
+0.4pp
Data table
Five year age groups for Lockhart (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Lockhart (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Lockhart (A)% | Count | % | Lockhart (A)% | Count | pp | |
| 0 to 4 | 56 | 5.5% | 6.1% | 55 | 5.2% | 6.4% | +1 | +0.3pp |
| 5 to 9 | 67 | 6.6% | 7.3% | 64 | 6.0% | 6.9% | +3 | +0.6pp |
| 10 to 14 | 59 | 5.8% | 7.5% | 74 | 7.0% | 7.3% | -15 | -1.2pp |
| 15 to 19 | 49 | 4.8% | 6.1% | 53 | 5.0% | 6.2% | -4 | -0.2pp |
| 20 to 24 | 45 | 4.4% | 4.1% | 45 | 4.2% | 3.9% | 0 | +0.2pp |
| 25 to 29 | 39 | 3.8% | 3.8% | 39 | 3.7% | 3.9% | 0 | +0.1pp |
| 30 to 34 | 26 | 2.6% | 3.7% | 40 | 3.8% | 4.4% | -14 | -1.2pp |
| 35 to 39 | 41 | 4.0% | 4.5% | 37 | 3.5% | 4.7% | +4 | +0.5pp |
| 40 to 44 | 37 | 3.6% | 5.0% | 53 | 5.0% | 5.1% | -16 | -1.4pp |
| 45 to 49 | 49 | 4.8% | 5.5% | 57 | 5.4% | 6.5% | -8 | -0.6pp |
| 50 to 54 | 60 | 5.9% | 6.2% | 73 | 6.9% | 7.5% | -13 | -1.0pp |
| 55 to 59 | 85 | 8.3% | 8.1% | 84 | 7.9% | 8.1% | +1 | +0.4pp |
| 60 to 64 | 77 | 7.6% | 7.9% | 75 | 7.1% | 7.6% | +2 | +0.5pp |
| 65 to 69 | 81 | 7.9% | 7.0% | 74 | 7.0% | 6.6% | +7 | +0.9pp |
| 70 to 74 | 77 | 7.6% | 6.1% | 68 | 6.4% | 5.2% | +9 | +1.2pp |
| 75 to 79 | 57 | 5.6% | 4.7% | 62 | 5.8% | 4.4% | -5 | -0.2pp |
| 80 to 84 | 43 | 4.2% | 2.9% | 46 | 4.3% | 3.2% | -3 | -0.1pp |
| 85 and over | 58 | 5.7% | 3.6% | 56 | 5.3% | 3.0% | +2 | +0.4pp |
| Total | 1,019 | 100.0% | 100.0% | 1,061 | 100.0% | 100.0% | -42 | 0.0pp |