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 Hillman, accounting for 7.4% (133 people). This share was higher than Rockingham (C) (5.2%). Since 2016, the biggest change was in 55 to 59 year olds, which decreased by 41 people and 2.1 percentage points.
Section overview
Age structure - Five year age groups
Hillman - Total persons (Usual residence)
This table summarises five year age groups for Hillman in 2021 for persons, with comparison against Rockingham (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Hillman, with comparison markers for Rockingham (C).
0 to 4
2021 count
101
% of total
5.6%
Change from 2016
+0.1pp
101
5.6%
+0.1pp
5 to 9
2021 count
106
% of total
5.9%
Change from 2016
-0.1pp
106
5.9%
-0.1pp
10 to 14
2021 count
125
% of total
6.9%
Change from 2016
+0.3pp
125
6.9%
+0.3pp
15 to 19
2021 count
118
% of total
6.5%
Change from 2016
+0.9pp
118
6.5%
+0.9pp
20 to 24
2021 count
88
% of total
4.9%
Change from 2016
-0.6pp
88
4.9%
-0.6pp
25 to 29
2021 count
96
% of total
5.3%
Change from 2016
-0.7pp
96
5.3%
-0.7pp
30 to 34
2021 count
101
% of total
5.6%
Change from 2016
-0.7pp
101
5.6%
-0.7pp
35 to 39
2021 count
125
% of total
6.9%
Change from 2016
0.0pp
125
6.9%
0.0pp
40 to 44
2021 count
106
% of total
5.9%
Change from 2016
-0.8pp
106
5.9%
-0.8pp
45 to 49
2021 count
110
% of total
6.1%
Change from 2016
+0.5pp
110
6.1%
+0.5pp
50 to 54
2021 count
121
% of total
6.7%
Change from 2016
+1.3pp
121
6.7%
+1.3pp
55 to 59
2021 count
107
% of total
5.9%
Change from 2016
-2.1pp
107
5.9%
-2.1pp
60 to 64
2021 count
133
% of total
7.4%
Change from 2016
+0.6pp
133
7.4%
+0.6pp
65 to 69
2021 count
110
% of total
6.1%
Change from 2016
-0.6pp
110
6.1%
-0.6pp
70 to 74
2021 count
124
% of total
6.9%
Change from 2016
+1.9pp
124
6.9%
+1.9pp
75 to 79
2021 count
75
% of total
4.2%
Change from 2016
+0.9pp
75
4.2%
+0.9pp
80 to 84
2021 count
44
% of total
2.4%
Change from 2016
+0.3pp
44
2.4%
+0.3pp
85 and over
2021 count
29
% of total
1.6%
Change from 2016
+0.2pp
29
1.6%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-1
+0.1pp
5 to 9
-4
-0.1pp
10 to 14
+3
+0.3pp
15 to 19
+14
+0.9pp
20 to 24
-14
-0.6pp
25 to 29
-14
-0.7pp
30 to 34
-16
-0.7pp
35 to 39
-3
0.0pp
40 to 44
-17
-0.8pp
45 to 49
+7
+0.5pp
50 to 54
+21
+1.3pp
55 to 59
-41
-2.1pp
60 to 64
+8
+0.6pp
65 to 69
-14
-0.6pp
70 to 74
+32
+1.9pp
75 to 79
+14
+0.9pp
80 to 84
+6
+0.3pp
85 and over
+4
+0.2pp
Data table
Five year age groups for Hillman. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Rockingham (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Rockingham (C)% | Count | % | Rockingham (C)% | Count | pp | |
| 0 to 4 | 101 | 5.6% | 6.7% | 102 | 5.5% | 7.5% | -1 | +0.1pp |
| 5 to 9 | 106 | 5.9% | 7.3% | 110 | 6.0% | 7.9% | -4 | -0.1pp |
| 10 to 14 | 125 | 6.9% | 7.6% | 122 | 6.6% | 6.9% | +3 | +0.3pp |
| 15 to 19 | 118 | 6.5% | 6.5% | 104 | 5.6% | 6.6% | +14 | +0.9pp |
| 20 to 24 | 88 | 4.9% | 6.0% | 102 | 5.5% | 6.8% | -14 | -0.6pp |
| 25 to 29 | 96 | 5.3% | 6.4% | 110 | 6.0% | 7.2% | -14 | -0.7pp |
| 30 to 34 | 101 | 5.6% | 7.1% | 117 | 6.3% | 7.4% | -16 | -0.7pp |
| 35 to 39 | 125 | 6.9% | 7.1% | 128 | 6.9% | 6.7% | -3 | 0.0pp |
| 40 to 44 | 106 | 5.9% | 6.4% | 123 | 6.7% | 7.1% | -17 | -0.8pp |
| 45 to 49 | 110 | 6.1% | 6.6% | 103 | 5.6% | 7.1% | +7 | +0.5pp |
| 50 to 54 | 121 | 6.7% | 6.6% | 100 | 5.4% | 6.7% | +21 | +1.3pp |
| 55 to 59 | 107 | 5.9% | 6.2% | 148 | 8.0% | 5.5% | -41 | -2.1pp |
| 60 to 64 | 133 | 7.4% | 5.2% | 125 | 6.8% | 4.5% | +8 | +0.6pp |
| 65 to 69 | 110 | 6.1% | 4.3% | 124 | 6.7% | 4.0% | -14 | -0.6pp |
| 70 to 74 | 124 | 6.9% | 3.7% | 92 | 5.0% | 3.1% | +32 | +1.9pp |
| 75 to 79 | 75 | 4.2% | 2.8% | 61 | 3.3% | 2.3% | +14 | +0.9pp |
| 80 to 84 | 44 | 2.4% | 1.8% | 38 | 2.1% | 1.6% | +6 | +0.3pp |
| 85 and over | 29 | 1.6% | 1.5% | 25 | 1.4% | 1.4% | +4 | +0.2pp |
| Total | 1,807 | 100.0% | 100.0% | 1,848 | 100.0% | 100.0% | -41 | 0.0pp |