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, 50 to 54 year olds was the largest age group among residents in Simpson (Vic.) (part), accounting for 8.6% (50 people). This share was higher than Corangamite (S) (7%). Since 2016, the biggest change was in 15 to 19 year olds, which increased by 39 people and 4.8 percentage points.
Section overview
Age structure - Five year age groups
Simpson (Vic.) (part) - Total persons (Usual residence)
This table summarises five year age groups for Simpson (Vic.) (part) in 2021 for persons, with comparison against Corangamite (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Simpson (Vic.) (part), with comparison markers for Corangamite (S).
0 to 4
2021 count
45
% of total
7.7%
Change from 2016
+4.2pp
45
7.7%
+4.2pp
5 to 9
2021 count
41
% of total
7.0%
Change from 2016
+1.7pp
41
7.0%
+1.7pp
10 to 14
2021 count
43
% of total
7.4%
Change from 2016
-0.6pp
43
7.4%
-0.6pp
15 to 19
2021 count
46
% of total
7.9%
Change from 2016
+4.8pp
46
7.9%
+4.8pp
20 to 24
2021 count
32
% of total
5.5%
Change from 2016
+3.7pp
32
5.5%
+3.7pp
25 to 29
2021 count
31
% of total
5.3%
Change from 2016
+2.6pp
31
5.3%
+2.6pp
30 to 34
2021 count
38
% of total
6.5%
Change from 2016
+3.8pp
38
6.5%
+3.8pp
35 to 39
2021 count
29
% of total
5.0%
Change from 2016
-1.2pp
29
5.0%
-1.2pp
40 to 44
2021 count
41
% of total
7.0%
Change from 2016
+1.7pp
41
7.0%
+1.7pp
45 to 49
2021 count
39
% of total
6.7%
Change from 2016
+1.8pp
39
6.7%
+1.8pp
50 to 54
2021 count
50
% of total
8.6%
Change from 2016
+1.5pp
50
8.6%
+1.5pp
55 to 59
2021 count
41
% of total
7.0%
Change from 2016
+0.4pp
41
7.0%
+0.4pp
60 to 64
2021 count
45
% of total
7.7%
Change from 2016
+0.2pp
45
7.7%
+0.2pp
65 to 69
2021 count
21
% of total
3.6%
Change from 2016
-4.8pp
21
3.6%
-4.8pp
70 to 74
2021 count
27
% of total
4.6%
Change from 2016
-3.8pp
27
4.6%
-3.8pp
75 to 79
2021 count
16
% of total
2.7%
Change from 2016
+1.4pp
16
2.7%
+1.4pp
80 to 84
2021 count
16
% of total
2.7%
Change from 2016
+1.4pp
16
2.7%
+1.4pp
85 and over
2021 count
9
% of total
1.5%
Change from 2016
-1.2pp
9
1.5%
-1.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+37
+4.2pp
5 to 9
+29
+1.7pp
10 to 14
+25
-0.6pp
15 to 19
+39
+4.8pp
20 to 24
+28
+3.7pp
25 to 29
+25
+2.6pp
30 to 34
+32
+3.8pp
35 to 39
+15
-1.2pp
40 to 44
+29
+1.7pp
45 to 49
+28
+1.8pp
50 to 54
+34
+1.5pp
55 to 59
+26
+0.4pp
60 to 64
+28
+0.2pp
65 to 69
+2
-4.8pp
70 to 74
+8
-3.8pp
75 to 79
+13
+1.4pp
80 to 84
+13
+1.4pp
85 and over
+3
-1.2pp
Data table
Five year age groups for Simpson (Vic.) (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Corangamite (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Corangamite (S)% | Count | % | Corangamite (S)% | Count | pp | |
| 0 to 4 | 45 | 7.7% | 4.6% | 8 | 3.5% | 5.5% | +37 | +4.2pp |
| 5 to 9 | 41 | 7.0% | 5.6% | 12 | 5.3% | 6.6% | +29 | +1.7pp |
| 10 to 14 | 43 | 7.4% | 6.5% | 18 | 8.0% | 6.2% | +25 | -0.6pp |
| 15 to 19 | 46 | 7.9% | 5.8% | 7 | 3.1% | 6.4% | +39 | +4.8pp |
| 20 to 24 | 32 | 5.5% | 4.6% | 4 | 1.8% | 4.6% | +28 | +3.7pp |
| 25 to 29 | 31 | 5.3% | 4.8% | 6 | 2.7% | 4.3% | +25 | +2.6pp |
| 30 to 34 | 38 | 6.5% | 4.9% | 6 | 2.7% | 4.2% | +32 | +3.8pp |
| 35 to 39 | 29 | 5.0% | 5.0% | 14 | 6.2% | 4.9% | +15 | -1.2pp |
| 40 to 44 | 41 | 7.0% | 4.8% | 12 | 5.3% | 5.5% | +29 | +1.7pp |
| 45 to 49 | 39 | 6.7% | 5.8% | 11 | 4.9% | 6.7% | +28 | +1.8pp |
| 50 to 54 | 50 | 8.6% | 7.0% | 16 | 7.1% | 7.6% | +34 | +1.5pp |
| 55 to 59 | 41 | 7.0% | 7.7% | 15 | 6.6% | 7.8% | +26 | +0.4pp |
| 60 to 64 | 45 | 7.7% | 8.0% | 17 | 7.5% | 7.1% | +28 | +0.2pp |
| 65 to 69 | 21 | 3.6% | 7.0% | 19 | 8.4% | 6.9% | +2 | -4.8pp |
| 70 to 74 | 27 | 4.6% | 6.3% | 19 | 8.4% | 5.4% | +8 | -3.8pp |
| 75 to 79 | 16 | 2.7% | 4.9% | 3 | 1.3% | 4.3% | +13 | +1.4pp |
| 80 to 84 | 16 | 2.7% | 3.3% | 3 | 1.3% | 3.2% | +13 | +1.4pp |
| 85 and over | 9 | 1.5% | 3.2% | 6 | 2.7% | 2.9% | +3 | -1.2pp |
| Total | 583 | 100.0% | 100.0% | 226 | 100.0% | 100.0% | +357 | 0.0pp |