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, 30 to 34 year olds was the largest age group among residents in Dover Gardens, accounting for 8.3% (254 people). This share was higher than Marion (C) (7.7%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 56 people and 1.6 percentage points.
Section overview
Age structure - Five year age groups
Dover Gardens - Total persons (Usual residence)
This table summarises five year age groups for Dover Gardens 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 Dover Gardens, with comparison markers for Marion (C).
0 to 4
2021 count
191
% of total
6.2%
Change from 2016
-0.3pp
191
6.2%
-0.3pp
5 to 9
2021 count
154
% of total
5.0%
Change from 2016
-0.7pp
154
5.0%
-0.7pp
10 to 14
2021 count
149
% of total
4.9%
Change from 2016
-0.5pp
149
4.9%
-0.5pp
15 to 19
2021 count
146
% of total
4.8%
Change from 2016
-0.6pp
146
4.8%
-0.6pp
20 to 24
2021 count
193
% of total
6.3%
Change from 2016
+0.1pp
193
6.3%
+0.1pp
25 to 29
2021 count
235
% of total
7.7%
Change from 2016
+0.3pp
235
7.7%
+0.3pp
30 to 34
2021 count
254
% of total
8.3%
Change from 2016
+0.1pp
254
8.3%
+0.1pp
35 to 39
2021 count
238
% of total
7.8%
Change from 2016
+0.9pp
238
7.8%
+0.9pp
40 to 44
2021 count
205
% of total
6.7%
Change from 2016
-0.1pp
205
6.7%
-0.1pp
45 to 49
2021 count
179
% of total
5.8%
Change from 2016
-0.5pp
179
5.8%
-0.5pp
50 to 54
2021 count
163
% of total
5.3%
Change from 2016
-0.1pp
163
5.3%
-0.1pp
55 to 59
2021 count
160
% of total
5.2%
Change from 2016
-0.8pp
160
5.2%
-0.8pp
60 to 64
2021 count
169
% of total
5.5%
Change from 2016
-1.5pp
169
5.5%
-1.5pp
65 to 69
2021 count
206
% of total
6.7%
Change from 2016
+1.2pp
206
6.7%
+1.2pp
70 to 74
2021 count
157
% of total
5.1%
Change from 2016
+1.6pp
157
5.1%
+1.6pp
75 to 79
2021 count
99
% of total
3.2%
Change from 2016
+0.1pp
99
3.2%
+0.1pp
80 to 84
2021 count
59
% of total
1.9%
Change from 2016
-1.1pp
59
1.9%
-1.1pp
85 and over
2021 count
92
% of total
3.0%
Change from 2016
+0.9pp
92
3.0%
+0.9pp
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
-9
-0.7pp
10 to 14
-6
-0.5pp
15 to 19
-8
-0.6pp
20 to 24
+15
+0.1pp
25 to 29
+22
+0.3pp
30 to 34
+18
+0.1pp
35 to 39
+41
+0.9pp
40 to 44
+10
-0.1pp
45 to 49
-3
-0.5pp
50 to 54
+8
-0.1pp
55 to 59
-13
-0.8pp
60 to 64
-33
-1.5pp
65 to 69
+49
+1.2pp
70 to 74
+56
+1.6pp
75 to 79
+9
+0.1pp
80 to 84
-28
-1.1pp
85 and over
+32
+0.9pp
Data table
Five year age groups for Dover Gardens. 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 | 191 | 6.2% | 5.4% | 188 | 6.5% | 5.9% | +3 | -0.3pp |
| 5 to 9 | 154 | 5.0% | 5.6% | 163 | 5.7% | 5.4% | -9 | -0.7pp |
| 10 to 14 | 149 | 4.9% | 5.2% | 155 | 5.4% | 4.9% | -6 | -0.5pp |
| 15 to 19 | 146 | 4.8% | 5.1% | 154 | 5.4% | 5.7% | -8 | -0.6pp |
| 20 to 24 | 193 | 6.3% | 6.7% | 178 | 6.2% | 7.2% | +15 | +0.1pp |
| 25 to 29 | 235 | 7.7% | 7.4% | 213 | 7.4% | 7.3% | +22 | +0.3pp |
| 30 to 34 | 254 | 8.3% | 7.7% | 236 | 8.2% | 7.5% | +18 | +0.1pp |
| 35 to 39 | 238 | 7.8% | 7.5% | 197 | 6.9% | 6.8% | +41 | +0.9pp |
| 40 to 44 | 205 | 6.7% | 6.6% | 195 | 6.8% | 6.4% | +10 | -0.1pp |
| 45 to 49 | 179 | 5.8% | 6.1% | 182 | 6.3% | 6.3% | -3 | -0.5pp |
| 50 to 54 | 163 | 5.3% | 5.9% | 155 | 5.4% | 6.4% | +8 | -0.1pp |
| 55 to 59 | 160 | 5.2% | 5.9% | 173 | 6.0% | 6.6% | -13 | -0.8pp |
| 60 to 64 | 169 | 5.5% | 6.1% | 202 | 7.0% | 6.2% | -33 | -1.5pp |
| 65 to 69 | 206 | 6.7% | 5.7% | 157 | 5.5% | 5.2% | +49 | +1.2pp |
| 70 to 74 | 157 | 5.1% | 4.8% | 101 | 3.5% | 3.7% | +56 | +1.6pp |
| 75 to 79 | 99 | 3.2% | 3.3% | 90 | 3.1% | 2.9% | +9 | +0.1pp |
| 80 to 84 | 59 | 1.9% | 2.3% | 87 | 3.0% | 2.4% | -28 | -1.1pp |
| 85 and over | 92 | 3.0% | 2.9% | 60 | 2.1% | 3.1% | +32 | +0.9pp |
| Total | 3,062 | 100.0% | 100.0% | 2,872 | 100.0% | 100.0% | +190 | 0.0pp |