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 Franklin Harbour (DC), accounting for 10.3% (133 people). This share was higher than Regional SA (6.8%). Since 2016, the biggest change was in 75 to 79 year olds, which increased by 46 people and 3.6 percentage points.
Section overview
Age structure - Five year age groups
Franklin Harbour (DC) - Total persons (Usual residence)
This table summarises five year age groups for Franklin Harbour (DC) in 2021 for persons, with comparison against Regional SA and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Franklin Harbour (DC), with comparison markers for Regional SA.
0 to 4
2021 count
46
% of total
3.6%
Change from 2016
-2.1pp
46
3.6%
-2.1pp
5 to 9
2021 count
83
% of total
6.4%
Change from 2016
+0.2pp
83
6.4%
+0.2pp
10 to 14
2021 count
70
% of total
5.4%
Change from 2016
+1.2pp
70
5.4%
+1.2pp
15 to 19
2021 count
38
% of total
2.9%
Change from 2016
-0.5pp
38
2.9%
-0.5pp
20 to 24
2021 count
37
% of total
2.9%
Change from 2016
-1.1pp
37
2.9%
-1.1pp
25 to 29
2021 count
50
% of total
3.9%
Change from 2016
-0.2pp
50
3.9%
-0.2pp
30 to 34
2021 count
68
% of total
5.3%
Change from 2016
+2.0pp
68
5.3%
+2.0pp
35 to 39
2021 count
41
% of total
3.2%
Change from 2016
-1.8pp
41
3.2%
-1.8pp
40 to 44
2021 count
79
% of total
6.1%
Change from 2016
+1.6pp
79
6.1%
+1.6pp
45 to 49
2021 count
63
% of total
4.9%
Change from 2016
-2.9pp
63
4.9%
-2.9pp
50 to 54
2021 count
105
% of total
8.1%
Change from 2016
+0.5pp
105
8.1%
+0.5pp
55 to 59
2021 count
99
% of total
7.7%
Change from 2016
+1.0pp
99
7.7%
+1.0pp
60 to 64
2021 count
104
% of total
8.0%
Change from 2016
-2.3pp
104
8.0%
-2.3pp
65 to 69
2021 count
114
% of total
8.8%
Change from 2016
-0.4pp
114
8.8%
-0.4pp
70 to 74
2021 count
133
% of total
10.3%
Change from 2016
+2.3pp
133
10.3%
+2.3pp
75 to 79
2021 count
76
% of total
5.9%
Change from 2016
+3.6pp
76
5.9%
+3.6pp
80 to 84
2021 count
28
% of total
2.2%
Change from 2016
0.0pp
28
2.2%
0.0pp
85 and over
2021 count
35
% of total
2.7%
Change from 2016
-1.2pp
35
2.7%
-1.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-28
-2.1pp
5 to 9
+3
+0.2pp
10 to 14
+16
+1.2pp
15 to 19
-6
-0.5pp
20 to 24
-15
-1.1pp
25 to 29
-3
-0.2pp
30 to 34
+25
+2.0pp
35 to 39
-24
-1.8pp
40 to 44
+20
+1.6pp
45 to 49
-38
-2.9pp
50 to 54
+7
+0.5pp
55 to 59
+12
+1.0pp
60 to 64
-30
-2.3pp
65 to 69
-6
-0.4pp
70 to 74
+29
+2.3pp
75 to 79
+46
+3.6pp
80 to 84
-1
0.0pp
85 and over
-16
-1.2pp
Data table
Five year age groups for Franklin Harbour (DC). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional SA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional SA% | Count | % | Regional SA% | Count | pp | |
| 0 to 4 | 46 | 3.6% | 4.9% | 74 | 5.7% | 5.5% | -28 | -2.1pp |
| 5 to 9 | 83 | 6.4% | 5.7% | 80 | 6.2% | 6.1% | +3 | +0.2pp |
| 10 to 14 | 70 | 5.4% | 6.1% | 54 | 4.2% | 6.0% | +16 | +1.2pp |
| 15 to 19 | 38 | 2.9% | 5.3% | 44 | 3.4% | 5.6% | -6 | -0.5pp |
| 20 to 24 | 37 | 2.9% | 4.6% | 52 | 4.0% | 4.8% | -15 | -1.1pp |
| 25 to 29 | 50 | 3.9% | 5.1% | 53 | 4.1% | 5.1% | -3 | -0.2pp |
| 30 to 34 | 68 | 5.3% | 5.4% | 43 | 3.3% | 5.3% | +25 | +2.0pp |
| 35 to 39 | 41 | 3.2% | 5.4% | 65 | 5.0% | 5.2% | -24 | -1.8pp |
| 40 to 44 | 79 | 6.1% | 5.2% | 59 | 4.5% | 5.9% | +20 | +1.6pp |
| 45 to 49 | 63 | 4.9% | 5.8% | 101 | 7.8% | 6.7% | -38 | -2.9pp |
| 50 to 54 | 105 | 8.1% | 6.7% | 98 | 7.6% | 7.1% | +7 | +0.5pp |
| 55 to 59 | 99 | 7.7% | 7.2% | 87 | 6.7% | 7.5% | +12 | +1.0pp |
| 60 to 64 | 104 | 8.0% | 7.7% | 134 | 10.3% | 7.3% | -30 | -2.3pp |
| 65 to 69 | 114 | 8.8% | 7.4% | 120 | 9.2% | 7.1% | -6 | -0.4pp |
| 70 to 74 | 133 | 10.3% | 6.8% | 104 | 8.0% | 5.5% | +29 | +2.3pp |
| 75 to 79 | 76 | 5.9% | 4.8% | 30 | 2.3% | 3.9% | +46 | +3.6pp |
| 80 to 84 | 28 | 2.2% | 3.1% | 29 | 2.2% | 2.6% | -1 | 0.0pp |
| 85 and over | 35 | 2.7% | 2.8% | 51 | 3.9% | 2.7% | -16 | -1.2pp |
| Total | 1,293 | 100.0% | 100.0% | 1,298 | 100.0% | 100.0% | -5 | 0.0pp |