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, 70 to 74 year olds was the largest age group among residents in Waterloo Corner (part), accounting for 11.4% (126 people). This share was higher than Playford (C) (3.3%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 42 people and 4.5 percentage points.
Section overview
Age structure - Five year age groups
Waterloo Corner (part) - Total persons (Usual residence)
This table summarises five year age groups for Waterloo Corner (part) in 2021 for persons, with comparison against Playford (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Waterloo Corner (part), with comparison markers for Playford (C).
0 to 4
2021 count
29
% of total
2.6%
Change from 2016
0.0pp
29
2.6%
0.0pp
5 to 9
2021 count
33
% of total
3.0%
Change from 2016
-1.7pp
33
3.0%
-1.7pp
10 to 14
2021 count
56
% of total
5.1%
Change from 2016
+0.3pp
56
5.1%
+0.3pp
15 to 19
2021 count
41
% of total
3.7%
Change from 2016
-1.7pp
41
3.7%
-1.7pp
20 to 24
2021 count
54
% of total
4.9%
Change from 2016
+1.5pp
54
4.9%
+1.5pp
25 to 29
2021 count
43
% of total
3.9%
Change from 2016
+0.6pp
43
3.9%
+0.6pp
30 to 34
2021 count
36
% of total
3.3%
Change from 2016
-0.2pp
36
3.3%
-0.2pp
35 to 39
2021 count
55
% of total
5.0%
Change from 2016
+1.2pp
55
5.0%
+1.2pp
40 to 44
2021 count
41
% of total
3.7%
Change from 2016
-1.4pp
41
3.7%
-1.4pp
45 to 49
2021 count
61
% of total
5.5%
Change from 2016
-0.5pp
61
5.5%
-0.5pp
50 to 54
2021 count
69
% of total
6.3%
Change from 2016
-0.1pp
69
6.3%
-0.1pp
55 to 59
2021 count
73
% of total
6.6%
Change from 2016
-1.2pp
73
6.6%
-1.2pp
60 to 64
2021 count
93
% of total
8.4%
Change from 2016
+0.3pp
93
8.4%
+0.3pp
65 to 69
2021 count
122
% of total
11.1%
Change from 2016
+1.5pp
122
11.1%
+1.5pp
70 to 74
2021 count
126
% of total
11.4%
Change from 2016
+4.5pp
126
11.4%
+4.5pp
75 to 79
2021 count
89
% of total
8.1%
Change from 2016
+1.2pp
89
8.1%
+1.2pp
80 to 84
2021 count
60
% of total
5.4%
Change from 2016
-0.5pp
60
5.4%
-0.5pp
85 and over
2021 count
49
% of total
4.4%
Change from 2016
+2.2pp
49
4.4%
+2.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-3
0.0pp
5 to 9
-25
-1.7pp
10 to 14
-3
+0.3pp
15 to 19
-25
-1.7pp
20 to 24
+12
+1.5pp
25 to 29
+2
+0.6pp
30 to 34
-7
-0.2pp
35 to 39
+9
+1.2pp
40 to 44
-22
-1.4pp
45 to 49
-13
-0.5pp
50 to 54
-10
-0.1pp
55 to 59
-23
-1.2pp
60 to 64
-6
+0.3pp
65 to 69
+4
+1.5pp
70 to 74
+42
+4.5pp
75 to 79
+5
+1.2pp
80 to 84
-12
-0.5pp
85 and over
+22
+2.2pp
Data table
Five year age groups for Waterloo Corner (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Playford (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Playford (C)% | Count | % | Playford (C)% | Count | pp | |
| 0 to 4 | 29 | 2.6% | 7.5% | 32 | 2.6% | 8.6% | -3 | 0.0pp |
| 5 to 9 | 33 | 3.0% | 8.0% | 58 | 4.7% | 7.9% | -25 | -1.7pp |
| 10 to 14 | 56 | 5.1% | 7.4% | 59 | 4.8% | 6.6% | -3 | +0.3pp |
| 15 to 19 | 41 | 3.7% | 6.2% | 66 | 5.4% | 6.7% | -25 | -1.7pp |
| 20 to 24 | 54 | 4.9% | 7.0% | 42 | 3.4% | 7.7% | +12 | +1.5pp |
| 25 to 29 | 43 | 3.9% | 8.2% | 41 | 3.3% | 7.9% | +2 | +0.6pp |
| 30 to 34 | 36 | 3.3% | 7.7% | 43 | 3.5% | 7.4% | -7 | -0.2pp |
| 35 to 39 | 55 | 5.0% | 7.1% | 46 | 3.8% | 6.1% | +9 | +1.2pp |
| 40 to 44 | 41 | 3.7% | 5.7% | 63 | 5.1% | 5.9% | -22 | -1.4pp |
| 45 to 49 | 61 | 5.5% | 5.7% | 74 | 6.0% | 6.2% | -13 | -0.5pp |
| 50 to 54 | 69 | 6.3% | 5.7% | 79 | 6.4% | 6.5% | -10 | -0.1pp |
| 55 to 59 | 73 | 6.6% | 5.8% | 96 | 7.8% | 5.8% | -23 | -1.2pp |
| 60 to 64 | 93 | 8.4% | 5.1% | 99 | 8.1% | 4.5% | -6 | +0.3pp |
| 65 to 69 | 122 | 11.1% | 4.0% | 118 | 9.6% | 3.9% | +4 | +1.5pp |
| 70 to 74 | 126 | 11.4% | 3.3% | 84 | 6.9% | 2.8% | +42 | +4.5pp |
| 75 to 79 | 89 | 8.1% | 2.2% | 84 | 6.9% | 2.3% | +5 | +1.2pp |
| 80 to 84 | 60 | 5.4% | 1.7% | 72 | 5.9% | 1.7% | -12 | -0.5pp |
| 85 and over | 49 | 4.4% | 1.6% | 27 | 2.2% | 1.5% | +22 | +2.2pp |
| Total | 1,103 | 100.0% | 100.0% | 1,225 | 100.0% | 100.0% | -122 | 0.0pp |