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, 20 to 24 year olds was the largest age group among residents in Sinclair, accounting for 8.5% (65 people). This share was higher than Esperance (S) (4.7%). Since 2016, the biggest change was in 10 to 14 year olds, which decreased by 39 people and 3.7 percentage points.
Section overview
Age structure - Five year age groups
Sinclair - Total persons (Usual residence)
This table summarises five year age groups for Sinclair in 2021 for persons, with comparison against Esperance (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Sinclair, with comparison markers for Esperance (S).
0 to 4
2021 count
48
% of total
6.3%
Change from 2016
+1.4pp
48
6.3%
+1.4pp
5 to 9
2021 count
36
% of total
4.7%
Change from 2016
-3.2pp
36
4.7%
-3.2pp
10 to 14
2021 count
64
% of total
8.4%
Change from 2016
-3.7pp
64
8.4%
-3.7pp
15 to 19
2021 count
55
% of total
7.2%
Change from 2016
-3.7pp
55
7.2%
-3.7pp
20 to 24
2021 count
65
% of total
8.5%
Change from 2016
+2.9pp
65
8.5%
+2.9pp
25 to 29
2021 count
45
% of total
5.9%
Change from 2016
+0.9pp
45
5.9%
+0.9pp
30 to 34
2021 count
48
% of total
6.3%
Change from 2016
+0.3pp
48
6.3%
+0.3pp
35 to 39
2021 count
38
% of total
5.0%
Change from 2016
-1.4pp
38
5.0%
-1.4pp
40 to 44
2021 count
35
% of total
4.6%
Change from 2016
-2.3pp
35
4.6%
-2.3pp
45 to 49
2021 count
48
% of total
6.3%
Change from 2016
-0.2pp
48
6.3%
-0.2pp
50 to 54
2021 count
48
% of total
6.3%
Change from 2016
+1.9pp
48
6.3%
+1.9pp
55 to 59
2021 count
53
% of total
6.9%
Change from 2016
+0.5pp
53
6.9%
+0.5pp
60 to 64
2021 count
52
% of total
6.8%
Change from 2016
+2.9pp
52
6.8%
+2.9pp
65 to 69
2021 count
40
% of total
5.2%
Change from 2016
+0.9pp
40
5.2%
+0.9pp
70 to 74
2021 count
35
% of total
4.6%
Change from 2016
+1.1pp
35
4.6%
+1.1pp
75 to 79
2021 count
23
% of total
3.0%
Change from 2016
+0.7pp
23
3.0%
+0.7pp
80 to 84
2021 count
17
% of total
2.2%
Change from 2016
+0.8pp
17
2.2%
+0.8pp
85 and over
2021 count
4
% of total
0.5%
Change from 2016
+0.5pp
4
0.5%
+0.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+6
+1.4pp
5 to 9
-31
-3.2pp
10 to 14
-39
-3.7pp
15 to 19
-38
-3.7pp
20 to 24
+17
+2.9pp
25 to 29
+2
+0.9pp
30 to 34
-3
+0.3pp
35 to 39
-16
-1.4pp
40 to 44
-24
-2.3pp
45 to 49
-7
-0.2pp
50 to 54
+10
+1.9pp
55 to 59
-1
+0.5pp
60 to 64
+19
+2.9pp
65 to 69
+3
+0.9pp
70 to 74
+5
+1.1pp
75 to 79
+4
+0.7pp
80 to 84
+5
+0.8pp
85 and over
+4
+0.5pp
Data table
Five year age groups for Sinclair. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Esperance (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Esperance (S)% | Count | % | Esperance (S)% | Count | pp | |
| 0 to 4 | 48 | 6.3% | 5.9% | 42 | 4.9% | 6.4% | +6 | +1.4pp |
| 5 to 9 | 36 | 4.7% | 6.7% | 67 | 7.9% | 7.1% | -31 | -3.2pp |
| 10 to 14 | 64 | 8.4% | 7.0% | 103 | 12.1% | 7.1% | -39 | -3.7pp |
| 15 to 19 | 55 | 7.2% | 5.9% | 93 | 10.9% | 7.0% | -38 | -3.7pp |
| 20 to 24 | 65 | 8.5% | 4.7% | 48 | 5.6% | 5.1% | +17 | +2.9pp |
| 25 to 29 | 45 | 5.9% | 5.4% | 43 | 5.0% | 5.8% | +2 | +0.9pp |
| 30 to 34 | 48 | 6.3% | 5.9% | 51 | 6.0% | 5.6% | -3 | +0.3pp |
| 35 to 39 | 38 | 5.0% | 6.1% | 54 | 6.4% | 5.6% | -16 | -1.4pp |
| 40 to 44 | 35 | 4.6% | 5.8% | 59 | 6.9% | 6.6% | -24 | -2.3pp |
| 45 to 49 | 48 | 6.3% | 6.6% | 55 | 6.5% | 7.1% | -7 | -0.2pp |
| 50 to 54 | 48 | 6.3% | 7.1% | 38 | 4.4% | 7.6% | +10 | +1.9pp |
| 55 to 59 | 53 | 6.9% | 7.0% | 54 | 6.4% | 6.9% | -1 | +0.5pp |
| 60 to 64 | 52 | 6.8% | 6.7% | 33 | 3.9% | 5.8% | +19 | +2.9pp |
| 65 to 69 | 40 | 5.2% | 5.4% | 37 | 4.3% | 5.3% | +3 | +0.9pp |
| 70 to 74 | 35 | 4.6% | 5.3% | 30 | 3.5% | 4.2% | +5 | +1.1pp |
| 75 to 79 | 23 | 3.0% | 4.0% | 19 | 2.3% | 3.1% | +4 | +0.7pp |
| 80 to 84 | 17 | 2.2% | 2.6% | 12 | 1.4% | 1.8% | +5 | +0.8pp |
| 85 and over | 4 | 0.5% | 2.1% | 0 | 0.0% | 1.9% | +4 | +0.5pp |
| Total | 765 | 100.0% | 100.0% | 851 | 100.0% | 100.0% | -86 | 0.0pp |