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, 65 to 69 year olds was the largest age group among residents in Bakers Hill, accounting for 9.2% (117 people). This share was higher than Northam (S) (6.8%). Since 2016, the biggest change was in 50 to 54 year olds, which increased by 31 people and 1.7 percentage points.
Section overview
Age structure - Five year age groups
Bakers Hill - Total persons (Usual residence)
This table summarises five year age groups for Bakers Hill in 2021 for persons, with comparison against Northam (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Bakers Hill, with comparison markers for Northam (S).
0 to 4
2021 count
81
% of total
6.3%
Change from 2016
+0.8pp
81
6.3%
+0.8pp
5 to 9
2021 count
102
% of total
8.0%
Change from 2016
+0.5pp
102
8.0%
+0.5pp
10 to 14
2021 count
73
% of total
5.7%
Change from 2016
-1.5pp
73
5.7%
-1.5pp
15 to 19
2021 count
75
% of total
5.9%
Change from 2016
+1.2pp
75
5.9%
+1.2pp
20 to 24
2021 count
45
% of total
3.5%
Change from 2016
+0.8pp
45
3.5%
+0.8pp
25 to 29
2021 count
30
% of total
2.4%
Change from 2016
-1.8pp
30
2.4%
-1.8pp
30 to 34
2021 count
73
% of total
5.7%
Change from 2016
+0.3pp
73
5.7%
+0.3pp
35 to 39
2021 count
88
% of total
6.9%
Change from 2016
+1.5pp
88
6.9%
+1.5pp
40 to 44
2021 count
75
% of total
5.9%
Change from 2016
-1.2pp
75
5.9%
-1.2pp
45 to 49
2021 count
86
% of total
6.7%
Change from 2016
-2.2pp
86
6.7%
-2.2pp
50 to 54
2021 count
98
% of total
7.7%
Change from 2016
+1.7pp
98
7.7%
+1.7pp
55 to 59
2021 count
83
% of total
6.5%
Change from 2016
-1.8pp
83
6.5%
-1.8pp
60 to 64
2021 count
88
% of total
6.9%
Change from 2016
-2.3pp
88
6.9%
-2.3pp
65 to 69
2021 count
117
% of total
9.2%
Change from 2016
+1.1pp
117
9.2%
+1.1pp
70 to 74
2021 count
81
% of total
6.3%
Change from 2016
+0.5pp
81
6.3%
+0.5pp
75 to 79
2021 count
49
% of total
3.8%
Change from 2016
+1.0pp
49
3.8%
+1.0pp
80 to 84
2021 count
18
% of total
1.4%
Change from 2016
+0.1pp
18
1.4%
+0.1pp
85 and over
2021 count
7
% of total
0.5%
Change from 2016
+0.2pp
7
0.5%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+19
+0.8pp
5 to 9
+18
+0.5pp
10 to 14
-8
-1.5pp
15 to 19
+23
+1.2pp
20 to 24
+15
+0.8pp
25 to 29
-17
-1.8pp
30 to 34
+13
+0.3pp
35 to 39
+28
+1.5pp
40 to 44
-4
-1.2pp
45 to 49
-13
-2.2pp
50 to 54
+31
+1.7pp
55 to 59
-10
-1.8pp
60 to 64
-15
-2.3pp
65 to 69
+27
+1.1pp
70 to 74
+16
+0.5pp
75 to 79
+18
+1.0pp
80 to 84
+4
+0.1pp
85 and over
+4
+0.2pp
Data table
Five year age groups for Bakers Hill. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Northam (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Northam (S)% | Count | % | Northam (S)% | Count | pp | |
| 0 to 4 | 81 | 6.3% | 5.1% | 62 | 5.5% | 6.0% | +19 | +0.8pp |
| 5 to 9 | 102 | 8.0% | 6.7% | 84 | 7.5% | 6.3% | +18 | +0.5pp |
| 10 to 14 | 73 | 5.7% | 6.3% | 81 | 7.2% | 6.6% | -8 | -1.5pp |
| 15 to 19 | 75 | 5.9% | 5.9% | 52 | 4.7% | 5.5% | +23 | +1.2pp |
| 20 to 24 | 45 | 3.5% | 5.0% | 30 | 2.7% | 5.3% | +15 | +0.8pp |
| 25 to 29 | 30 | 2.4% | 4.9% | 47 | 4.2% | 6.0% | -17 | -1.8pp |
| 30 to 34 | 73 | 5.7% | 6.0% | 60 | 5.4% | 6.0% | +13 | +0.3pp |
| 35 to 39 | 88 | 6.9% | 6.0% | 60 | 5.4% | 5.7% | +28 | +1.5pp |
| 40 to 44 | 75 | 5.9% | 5.4% | 79 | 7.1% | 6.7% | -4 | -1.2pp |
| 45 to 49 | 86 | 6.7% | 6.5% | 99 | 8.9% | 6.5% | -13 | -2.2pp |
| 50 to 54 | 98 | 7.7% | 6.6% | 67 | 6.0% | 6.6% | +31 | +1.7pp |
| 55 to 59 | 83 | 6.5% | 7.1% | 93 | 8.3% | 8.0% | -10 | -1.8pp |
| 60 to 64 | 88 | 6.9% | 7.6% | 103 | 9.2% | 7.2% | -15 | -2.3pp |
| 65 to 69 | 117 | 9.2% | 6.8% | 90 | 8.1% | 6.4% | +27 | +1.1pp |
| 70 to 74 | 81 | 6.3% | 5.9% | 65 | 5.8% | 4.6% | +16 | +0.5pp |
| 75 to 79 | 49 | 3.8% | 3.9% | 31 | 2.8% | 2.9% | +18 | +1.0pp |
| 80 to 84 | 18 | 1.4% | 2.3% | 14 | 1.3% | 2.0% | +4 | +0.1pp |
| 85 and over | 7 | 0.5% | 2.0% | 3 | 0.3% | 1.8% | +4 | +0.2pp |
| Total | 1,276 | 100.0% | 100.0% | 1,118 | 100.0% | 100.0% | +158 | 0.0pp |