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 Langwarrin South, accounting for 10.3% (138 people). This share was higher than Frankston (C) (6.7%). Since 2016, the biggest change was in 50 to 54 year olds, which increased by 30 people and 1.6 percentage points.
Section overview
Age structure - Five year age groups
Langwarrin South - Total persons (Usual residence)
This table summarises five year age groups for Langwarrin South in 2021 for persons, with comparison against Frankston (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Langwarrin South, with comparison markers for Frankston (C).
0 to 4
2021 count
59
% of total
4.4%
Change from 2016
-1.1pp
59
4.4%
-1.1pp
5 to 9
2021 count
83
% of total
6.2%
Change from 2016
-0.4pp
83
6.2%
-0.4pp
10 to 14
2021 count
108
% of total
8.0%
Change from 2016
+1.3pp
108
8.0%
+1.3pp
15 to 19
2021 count
103
% of total
7.7%
Change from 2016
-1.3pp
103
7.7%
-1.3pp
20 to 24
2021 count
112
% of total
8.3%
Change from 2016
+1.6pp
112
8.3%
+1.6pp
25 to 29
2021 count
56
% of total
4.2%
Change from 2016
+0.1pp
56
4.2%
+0.1pp
30 to 34
2021 count
36
% of total
2.7%
Change from 2016
-0.6pp
36
2.7%
-0.6pp
35 to 39
2021 count
71
% of total
5.3%
Change from 2016
-0.8pp
71
5.3%
-0.8pp
40 to 44
2021 count
104
% of total
7.7%
Change from 2016
+0.2pp
104
7.7%
+0.2pp
45 to 49
2021 count
117
% of total
8.7%
Change from 2016
-1.4pp
117
8.7%
-1.4pp
50 to 54
2021 count
138
% of total
10.3%
Change from 2016
+1.6pp
138
10.3%
+1.6pp
55 to 59
2021 count
106
% of total
7.9%
Change from 2016
-0.3pp
106
7.9%
-0.3pp
60 to 64
2021 count
72
% of total
5.3%
Change from 2016
-2.0pp
72
5.3%
-2.0pp
65 to 69
2021 count
86
% of total
6.4%
Change from 2016
+1.5pp
86
6.4%
+1.5pp
70 to 74
2021 count
59
% of total
4.4%
Change from 2016
+1.4pp
59
4.4%
+1.4pp
75 to 79
2021 count
24
% of total
1.8%
Change from 2016
-0.4pp
24
1.8%
-0.4pp
80 to 84
2021 count
12
% of total
0.9%
Change from 2016
-0.5pp
12
0.9%
-0.5pp
85 and over
2021 count
15
% of total
1.1%
Change from 2016
+0.5pp
15
1.1%
+0.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-10
-1.1pp
5 to 9
+1
-0.4pp
10 to 14
+25
+1.3pp
15 to 19
-9
-1.3pp
20 to 24
+28
+1.6pp
25 to 29
+5
+0.1pp
30 to 34
-5
-0.6pp
35 to 39
-5
-0.8pp
40 to 44
+11
+0.2pp
45 to 49
-9
-1.4pp
50 to 54
+30
+1.6pp
55 to 59
+4
-0.3pp
60 to 64
-19
-2.0pp
65 to 69
+25
+1.5pp
70 to 74
+21
+1.4pp
75 to 79
-4
-0.4pp
80 to 84
-5
-0.5pp
85 and over
+7
+0.5pp
Data table
Five year age groups for Langwarrin South. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Frankston (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Frankston (C)% | Count | % | Frankston (C)% | Count | pp | |
| 0 to 4 | 59 | 4.4% | 6.2% | 69 | 5.5% | 6.7% | -10 | -1.1pp |
| 5 to 9 | 83 | 6.2% | 6.3% | 82 | 6.6% | 6.2% | +1 | -0.4pp |
| 10 to 14 | 108 | 8.0% | 6.1% | 83 | 6.7% | 5.7% | +25 | +1.3pp |
| 15 to 19 | 103 | 7.7% | 5.6% | 112 | 9.0% | 6.0% | -9 | -1.3pp |
| 20 to 24 | 112 | 8.3% | 5.6% | 84 | 6.7% | 6.3% | +28 | +1.6pp |
| 25 to 29 | 56 | 4.2% | 6.4% | 51 | 4.1% | 6.6% | +5 | +0.1pp |
| 30 to 34 | 36 | 2.7% | 7.3% | 41 | 3.3% | 7.2% | -5 | -0.6pp |
| 35 to 39 | 71 | 5.3% | 7.4% | 76 | 6.1% | 6.8% | -5 | -0.8pp |
| 40 to 44 | 104 | 7.7% | 6.8% | 93 | 7.5% | 7.1% | +11 | +0.2pp |
| 45 to 49 | 117 | 8.7% | 6.9% | 126 | 10.1% | 7.2% | -9 | -1.4pp |
| 50 to 54 | 138 | 10.3% | 6.7% | 108 | 8.7% | 6.8% | +30 | +1.6pp |
| 55 to 59 | 106 | 7.9% | 6.3% | 102 | 8.2% | 6.5% | +4 | -0.3pp |
| 60 to 64 | 72 | 5.3% | 5.9% | 91 | 7.3% | 5.5% | -19 | -2.0pp |
| 65 to 69 | 86 | 6.4% | 4.9% | 61 | 4.9% | 5.0% | +25 | +1.5pp |
| 70 to 74 | 59 | 4.4% | 4.4% | 38 | 3.0% | 3.7% | +21 | +1.4pp |
| 75 to 79 | 24 | 1.8% | 3.1% | 28 | 2.2% | 2.7% | -4 | -0.4pp |
| 80 to 84 | 12 | 0.9% | 2.0% | 17 | 1.4% | 1.9% | -5 | -0.5pp |
| 85 and over | 15 | 1.1% | 2.2% | 8 | 0.6% | 2.0% | +7 | +0.5pp |
| Total | 1,346 | 100.0% | 100.0% | 1,248 | 100.0% | 100.0% | +98 | 0.0pp |