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, 55 to 59 year olds was the largest age group among residents in Marino, accounting for 8.6% (195 people). This share was higher than Marion (C) (5.9%). Since 2016, the biggest change was in 65 to 69 year olds, which decreased by 39 people and 2.1 percentage points.
Section overview
Age structure - Five year age groups
Marino - Total persons (Usual residence)
This table summarises five year age groups for Marino in 2021 for persons, with comparison against Marion (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Marino, with comparison markers for Marion (C).
0 to 4
2021 count
98
% of total
4.3%
Change from 2016
-0.3pp
98
4.3%
-0.3pp
5 to 9
2021 count
122
% of total
5.4%
Change from 2016
-0.6pp
122
5.4%
-0.6pp
10 to 14
2021 count
137
% of total
6.0%
Change from 2016
+0.5pp
137
6.0%
+0.5pp
15 to 19
2021 count
124
% of total
5.4%
Change from 2016
-0.3pp
124
5.4%
-0.3pp
20 to 24
2021 count
120
% of total
5.3%
Change from 2016
+0.3pp
120
5.3%
+0.3pp
25 to 29
2021 count
67
% of total
2.9%
Change from 2016
-1.5pp
67
2.9%
-1.5pp
30 to 34
2021 count
87
% of total
3.8%
Change from 2016
-0.5pp
87
3.8%
-0.5pp
35 to 39
2021 count
125
% of total
5.5%
Change from 2016
-0.2pp
125
5.5%
-0.2pp
40 to 44
2021 count
156
% of total
6.9%
Change from 2016
+0.1pp
156
6.9%
+0.1pp
45 to 49
2021 count
152
% of total
6.7%
Change from 2016
-0.5pp
152
6.7%
-0.5pp
50 to 54
2021 count
156
% of total
6.9%
Change from 2016
-1.6pp
156
6.9%
-1.6pp
55 to 59
2021 count
195
% of total
8.6%
Change from 2016
+0.3pp
195
8.6%
+0.3pp
60 to 64
2021 count
186
% of total
8.2%
Change from 2016
+1.1pp
186
8.2%
+1.1pp
65 to 69
2021 count
149
% of total
6.5%
Change from 2016
-2.1pp
149
6.5%
-2.1pp
70 to 74
2021 count
164
% of total
7.2%
Change from 2016
+1.3pp
164
7.2%
+1.3pp
75 to 79
2021 count
104
% of total
4.6%
Change from 2016
+0.8pp
104
4.6%
+0.8pp
80 to 84
2021 count
57
% of total
2.5%
Change from 2016
+0.2pp
57
2.5%
+0.2pp
85 and over
2021 count
46
% of total
2.0%
Change from 2016
+0.2pp
46
2.0%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-3
-0.3pp
5 to 9
-8
-0.6pp
10 to 14
+18
+0.5pp
15 to 19
-1
-0.3pp
20 to 24
+11
+0.3pp
25 to 29
-28
-1.5pp
30 to 34
-6
-0.5pp
35 to 39
+1
-0.2pp
40 to 44
+9
+0.1pp
45 to 49
-4
-0.5pp
50 to 54
-29
-1.6pp
55 to 59
+14
+0.3pp
60 to 64
+31
+1.1pp
65 to 69
-39
-2.1pp
70 to 74
+35
+1.3pp
75 to 79
+21
+0.8pp
80 to 84
+6
+0.2pp
85 and over
+6
+0.2pp
Data table
Five year age groups for Marino. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Marion (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Marion (C)% | Count | % | Marion (C)% | Count | pp | |
| 0 to 4 | 98 | 4.3% | 5.4% | 101 | 4.6% | 5.9% | -3 | -0.3pp |
| 5 to 9 | 122 | 5.4% | 5.6% | 130 | 6.0% | 5.4% | -8 | -0.6pp |
| 10 to 14 | 137 | 6.0% | 5.2% | 119 | 5.5% | 4.9% | +18 | +0.5pp |
| 15 to 19 | 124 | 5.4% | 5.1% | 125 | 5.7% | 5.7% | -1 | -0.3pp |
| 20 to 24 | 120 | 5.3% | 6.7% | 109 | 5.0% | 7.2% | +11 | +0.3pp |
| 25 to 29 | 67 | 2.9% | 7.4% | 95 | 4.4% | 7.3% | -28 | -1.5pp |
| 30 to 34 | 87 | 3.8% | 7.7% | 93 | 4.3% | 7.5% | -6 | -0.5pp |
| 35 to 39 | 125 | 5.5% | 7.5% | 124 | 5.7% | 6.8% | +1 | -0.2pp |
| 40 to 44 | 156 | 6.9% | 6.6% | 147 | 6.8% | 6.4% | +9 | +0.1pp |
| 45 to 49 | 152 | 6.7% | 6.1% | 156 | 7.2% | 6.3% | -4 | -0.5pp |
| 50 to 54 | 156 | 6.9% | 5.9% | 185 | 8.5% | 6.4% | -29 | -1.6pp |
| 55 to 59 | 195 | 8.6% | 5.9% | 181 | 8.3% | 6.6% | +14 | +0.3pp |
| 60 to 64 | 186 | 8.2% | 6.1% | 155 | 7.1% | 6.2% | +31 | +1.1pp |
| 65 to 69 | 149 | 6.5% | 5.7% | 188 | 8.6% | 5.2% | -39 | -2.1pp |
| 70 to 74 | 164 | 7.2% | 4.8% | 129 | 5.9% | 3.7% | +35 | +1.3pp |
| 75 to 79 | 104 | 4.6% | 3.3% | 83 | 3.8% | 2.9% | +21 | +0.8pp |
| 80 to 84 | 57 | 2.5% | 2.3% | 51 | 2.3% | 2.4% | +6 | +0.2pp |
| 85 and over | 46 | 2.0% | 2.9% | 40 | 1.8% | 3.1% | +6 | +0.2pp |
| Total | 2,277 | 100.0% | 100.0% | 2,177 | 100.0% | 100.0% | +100 | 0.0pp |