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, 45 to 49 year olds was the largest age group among residents in Robin Hill, accounting for 9.8% (91 people). This share was higher than Bathurst Regional (A) (6.1%). Since 2016, the biggest change was in 40 to 44 year olds, which decreased by 38 people and 4.1 percentage points.
Section overview
Age structure - Five year age groups
Robin Hill - Total persons (Usual residence)
This table summarises five year age groups for Robin Hill in 2021 for persons, with comparison against Bathurst Regional (A) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Robin Hill, with comparison markers for Bathurst Regional (A).
0 to 4
2021 count
27
% of total
2.9%
Change from 2016
-0.6pp
27
2.9%
-0.6pp
5 to 9
2021 count
51
% of total
5.5%
Change from 2016
-2.6pp
51
5.5%
-2.6pp
10 to 14
2021 count
88
% of total
9.5%
Change from 2016
+0.7pp
88
9.5%
+0.7pp
15 to 19
2021 count
78
% of total
8.4%
Change from 2016
+0.7pp
78
8.4%
+0.7pp
20 to 24
2021 count
53
% of total
5.7%
Change from 2016
+0.6pp
53
5.7%
+0.6pp
25 to 29
2021 count
25
% of total
2.7%
Change from 2016
-0.2pp
25
2.7%
-0.2pp
30 to 34
2021 count
22
% of total
2.4%
Change from 2016
-2.5pp
22
2.4%
-2.5pp
35 to 39
2021 count
36
% of total
3.9%
Change from 2016
-0.3pp
36
3.9%
-0.3pp
40 to 44
2021 count
38
% of total
4.1%
Change from 2016
-4.1pp
38
4.1%
-4.1pp
45 to 49
2021 count
91
% of total
9.8%
Change from 2016
+1.5pp
91
9.8%
+1.5pp
50 to 54
2021 count
81
% of total
8.8%
Change from 2016
+0.8pp
81
8.8%
+0.8pp
55 to 59
2021 count
79
% of total
8.5%
Change from 2016
+0.9pp
79
8.5%
+0.9pp
60 to 64
2021 count
87
% of total
9.4%
Change from 2016
-1.0pp
87
9.4%
-1.0pp
65 to 69
2021 count
79
% of total
8.5%
Change from 2016
+2.7pp
79
8.5%
+2.7pp
70 to 74
2021 count
58
% of total
6.3%
Change from 2016
+3.7pp
58
6.3%
+3.7pp
75 to 79
2021 count
18
% of total
1.9%
Change from 2016
-0.7pp
18
1.9%
-0.7pp
80 to 84
2021 count
19
% of total
2.1%
Change from 2016
+0.2pp
19
2.1%
+0.2pp
85 and over
2021 count
17
% of total
1.8%
Change from 2016
+1.2pp
17
1.8%
+1.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-5
-0.6pp
5 to 9
-24
-2.6pp
10 to 14
+7
+0.7pp
15 to 19
+7
+0.7pp
20 to 24
+6
+0.6pp
25 to 29
-2
-0.2pp
30 to 34
-23
-2.5pp
35 to 39
-3
-0.3pp
40 to 44
-38
-4.1pp
45 to 49
+14
+1.5pp
50 to 54
+7
+0.8pp
55 to 59
+9
+0.9pp
60 to 64
-9
-1.0pp
65 to 69
+25
+2.7pp
70 to 74
+34
+3.7pp
75 to 79
-6
-0.7pp
80 to 84
+1
+0.2pp
85 and over
+11
+1.2pp
Data table
Five year age groups for Robin Hill. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Bathurst Regional (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Bathurst Regional (A)% | Count | % | Bathurst Regional (A)% | Count | pp | |
| 0 to 4 | 27 | 2.9% | 5.7% | 32 | 3.5% | 6.2% | -5 | -0.6pp |
| 5 to 9 | 51 | 5.5% | 6.3% | 75 | 8.1% | 6.7% | -24 | -2.6pp |
| 10 to 14 | 88 | 9.5% | 6.8% | 81 | 8.8% | 6.8% | +7 | +0.7pp |
| 15 to 19 | 78 | 8.4% | 6.7% | 71 | 7.7% | 7.2% | +7 | +0.7pp |
| 20 to 24 | 53 | 5.7% | 6.6% | 47 | 5.1% | 7.6% | +6 | +0.6pp |
| 25 to 29 | 25 | 2.7% | 6.3% | 27 | 2.9% | 6.5% | -2 | -0.2pp |
| 30 to 34 | 22 | 2.4% | 6.7% | 45 | 4.9% | 6.0% | -23 | -2.5pp |
| 35 to 39 | 36 | 3.9% | 6.1% | 39 | 4.2% | 5.6% | -3 | -0.3pp |
| 40 to 44 | 38 | 4.1% | 5.7% | 76 | 8.2% | 6.2% | -38 | -4.1pp |
| 45 to 49 | 91 | 9.8% | 6.1% | 77 | 8.3% | 6.5% | +14 | +1.5pp |
| 50 to 54 | 81 | 8.8% | 6.2% | 74 | 8.0% | 6.2% | +7 | +0.8pp |
| 55 to 59 | 79 | 8.5% | 6.1% | 70 | 7.6% | 6.3% | +9 | +0.9pp |
| 60 to 64 | 87 | 9.4% | 6.2% | 96 | 10.4% | 5.8% | -9 | -1.0pp |
| 65 to 69 | 79 | 8.5% | 5.5% | 54 | 5.8% | 5.3% | +25 | +2.7pp |
| 70 to 74 | 58 | 6.3% | 4.8% | 24 | 2.6% | 4.0% | +34 | +3.7pp |
| 75 to 79 | 18 | 1.9% | 3.5% | 24 | 2.6% | 2.8% | -6 | -0.7pp |
| 80 to 84 | 19 | 2.1% | 2.3% | 18 | 1.9% | 2.1% | +1 | +0.2pp |
| 85 and over | 17 | 1.8% | 2.4% | 6 | 0.6% | 2.2% | +11 | +1.2pp |
| Total | 925 | 100.0% | 100.0% | 925 | 100.0% | 100.0% | 0 | 0.0pp |