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, 25 to 29 year olds was the largest age group among residents in Ascot Park, accounting for 11.4% (410 people). This share was higher than Marion (C) (7.4%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 403 people and 8.9 percentage points.
Section overview
Age structure - Five year age groups
Ascot Park - Total persons (Usual residence)
This table summarises five year age groups for Ascot Park 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 Ascot Park, with comparison markers for Marion (C).
0 to 4
2021 count
197
% of total
5.5%
Change from 2016
+3.0pp
197
5.5%
+3.0pp
5 to 9
2021 count
189
% of total
5.3%
Change from 2016
-3.2pp
189
5.3%
-3.2pp
10 to 14
2021 count
134
% of total
3.7%
Change from 2016
-1.6pp
134
3.7%
-1.6pp
15 to 19
2021 count
161
% of total
4.5%
Change from 2016
+0.9pp
161
4.5%
+0.9pp
20 to 24
2021 count
333
% of total
9.3%
Change from 2016
+3.6pp
333
9.3%
+3.6pp
25 to 29
2021 count
410
% of total
11.4%
Change from 2016
+8.9pp
410
11.4%
+8.9pp
30 to 34
2021 count
378
% of total
10.5%
Change from 2016
+10.5pp
378
10.5%
+10.5pp
35 to 39
2021 count
315
% of total
8.8%
Change from 2016
+4.5pp
315
8.8%
+4.5pp
40 to 44
2021 count
232
% of total
6.5%
Change from 2016
+0.8pp
232
6.5%
+0.8pp
45 to 49
2021 count
201
% of total
5.6%
Change from 2016
-1.5pp
201
5.6%
-1.5pp
50 to 54
2021 count
178
% of total
5.0%
Change from 2016
-5.7pp
178
5.0%
-5.7pp
55 to 59
2021 count
178
% of total
5.0%
Change from 2016
-7.5pp
178
5.0%
-7.5pp
60 to 64
2021 count
154
% of total
4.3%
Change from 2016
-2.5pp
154
4.3%
-2.5pp
65 to 69
2021 count
146
% of total
4.1%
Change from 2016
-3.0pp
146
4.1%
-3.0pp
70 to 74
2021 count
126
% of total
3.5%
Change from 2016
+0.3pp
126
3.5%
+0.3pp
75 to 79
2021 count
106
% of total
3.0%
Change from 2016
+1.9pp
106
3.0%
+1.9pp
80 to 84
2021 count
88
% of total
2.5%
Change from 2016
+2.5pp
88
2.5%
+2.5pp
85 and over
2021 count
71
% of total
2.0%
Change from 2016
+2.0pp
71
2.0%
+2.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+190
+3.0pp
5 to 9
+165
-3.2pp
10 to 14
+119
-1.6pp
15 to 19
+151
+0.9pp
20 to 24
+317
+3.6pp
25 to 29
+403
+8.9pp
30 to 34
+378
+10.5pp
35 to 39
+303
+4.5pp
40 to 44
+216
+0.8pp
45 to 49
+181
-1.5pp
50 to 54
+148
-5.7pp
55 to 59
+143
-7.5pp
60 to 64
+135
-2.5pp
65 to 69
+126
-3.0pp
70 to 74
+117
+0.3pp
75 to 79
+103
+1.9pp
80 to 84
+88
+2.5pp
85 and over
+71
+2.0pp
Data table
Five year age groups for Ascot Park. 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 | 197 | 5.5% | 5.4% | 7 | 2.5% | 5.9% | +190 | +3.0pp |
| 5 to 9 | 189 | 5.3% | 5.6% | 24 | 8.5% | 5.4% | +165 | -3.2pp |
| 10 to 14 | 134 | 3.7% | 5.2% | 15 | 5.3% | 4.9% | +119 | -1.6pp |
| 15 to 19 | 161 | 4.5% | 5.1% | 10 | 3.6% | 5.7% | +151 | +0.9pp |
| 20 to 24 | 333 | 9.3% | 6.7% | 16 | 5.7% | 7.2% | +317 | +3.6pp |
| 25 to 29 | 410 | 11.4% | 7.4% | 7 | 2.5% | 7.3% | +403 | +8.9pp |
| 30 to 34 | 378 | 10.5% | 7.7% | 0 | 0.0% | 7.5% | +378 | +10.5pp |
| 35 to 39 | 315 | 8.8% | 7.5% | 12 | 4.3% | 6.8% | +303 | +4.5pp |
| 40 to 44 | 232 | 6.5% | 6.6% | 16 | 5.7% | 6.4% | +216 | +0.8pp |
| 45 to 49 | 201 | 5.6% | 6.1% | 20 | 7.1% | 6.3% | +181 | -1.5pp |
| 50 to 54 | 178 | 5.0% | 5.9% | 30 | 10.7% | 6.4% | +148 | -5.7pp |
| 55 to 59 | 178 | 5.0% | 5.9% | 35 | 12.5% | 6.6% | +143 | -7.5pp |
| 60 to 64 | 154 | 4.3% | 6.1% | 19 | 6.8% | 6.2% | +135 | -2.5pp |
| 65 to 69 | 146 | 4.1% | 5.7% | 20 | 7.1% | 5.2% | +126 | -3.0pp |
| 70 to 74 | 126 | 3.5% | 4.8% | 9 | 3.2% | 3.7% | +117 | +0.3pp |
| 75 to 79 | 106 | 3.0% | 3.3% | 3 | 1.1% | 2.9% | +103 | +1.9pp |
| 80 to 84 | 88 | 2.5% | 2.3% | 0 | 0.0% | 2.4% | +88 | +2.5pp |
| 85 and over | 71 | 2.0% | 2.9% | 0 | 0.0% | 3.1% | +71 | +2.0pp |
| Total | 3,588 | 100.0% | 100.0% | 281 | 100.0% | 100.0% | +3,307 | 0.0pp |