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 Edwardstown, accounting for 10.1% (454 people). This share was higher than Marion (C) (7.7%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 72 people and 1.3 percentage points.
Section overview
Age structure - Five year age groups
Edwardstown - Total persons (Usual residence)
This table summarises five year age groups for Edwardstown 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 Edwardstown, with comparison markers for Marion (C).
0 to 4
2021 count
252
% of total
5.6%
Change from 2016
-0.9pp
252
5.6%
-0.9pp
5 to 9
2021 count
230
% of total
5.1%
Change from 2016
+1.2pp
230
5.1%
+1.2pp
10 to 14
2021 count
205
% of total
4.5%
Change from 2016
+0.6pp
205
4.5%
+0.6pp
15 to 19
2021 count
200
% of total
4.4%
Change from 2016
-0.5pp
200
4.4%
-0.5pp
20 to 24
2021 count
349
% of total
7.7%
Change from 2016
-1.1pp
349
7.7%
-1.1pp
25 to 29
2021 count
404
% of total
8.9%
Change from 2016
-0.6pp
404
8.9%
-0.6pp
30 to 34
2021 count
454
% of total
10.1%
Change from 2016
+0.7pp
454
10.1%
+0.7pp
35 to 39
2021 count
374
% of total
8.3%
Change from 2016
+1.3pp
374
8.3%
+1.3pp
40 to 44
2021 count
311
% of total
6.9%
Change from 2016
+1.1pp
311
6.9%
+1.1pp
45 to 49
2021 count
245
% of total
5.4%
Change from 2016
-0.4pp
245
5.4%
-0.4pp
50 to 54
2021 count
260
% of total
5.8%
Change from 2016
-0.8pp
260
5.8%
-0.8pp
55 to 59
2021 count
264
% of total
5.8%
Change from 2016
-1.1pp
264
5.8%
-1.1pp
60 to 64
2021 count
268
% of total
5.9%
Change from 2016
-0.7pp
268
5.9%
-0.7pp
65 to 69
2021 count
253
% of total
5.6%
Change from 2016
+0.9pp
253
5.6%
+0.9pp
70 to 74
2021 count
162
% of total
3.6%
Change from 2016
+1.1pp
162
3.6%
+1.1pp
75 to 79
2021 count
94
% of total
2.1%
Change from 2016
-0.7pp
94
2.1%
-0.7pp
80 to 84
2021 count
93
% of total
2.1%
Change from 2016
0.0pp
93
2.1%
0.0pp
85 and over
2021 count
85
% of total
1.9%
Change from 2016
-0.5pp
85
1.9%
-0.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-29
-0.9pp
5 to 9
+60
+1.2pp
10 to 14
+36
+0.6pp
15 to 19
-10
-0.5pp
20 to 24
-31
-1.1pp
25 to 29
-7
-0.6pp
30 to 34
+46
+0.7pp
35 to 39
+72
+1.3pp
40 to 44
+59
+1.1pp
45 to 49
-6
-0.4pp
50 to 54
-25
-0.8pp
55 to 59
-33
-1.1pp
60 to 64
-18
-0.7pp
65 to 69
+48
+0.9pp
70 to 74
+53
+1.1pp
75 to 79
-28
-0.7pp
80 to 84
+2
0.0pp
85 and over
-20
-0.5pp
Data table
Five year age groups for Edwardstown. 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 | 252 | 5.6% | 5.4% | 281 | 6.5% | 5.9% | -29 | -0.9pp |
| 5 to 9 | 230 | 5.1% | 5.6% | 170 | 3.9% | 5.4% | +60 | +1.2pp |
| 10 to 14 | 205 | 4.5% | 5.2% | 169 | 3.9% | 4.9% | +36 | +0.6pp |
| 15 to 19 | 200 | 4.4% | 5.1% | 210 | 4.9% | 5.7% | -10 | -0.5pp |
| 20 to 24 | 349 | 7.7% | 6.7% | 380 | 8.8% | 7.2% | -31 | -1.1pp |
| 25 to 29 | 404 | 8.9% | 7.4% | 411 | 9.5% | 7.3% | -7 | -0.6pp |
| 30 to 34 | 454 | 10.1% | 7.7% | 408 | 9.4% | 7.5% | +46 | +0.7pp |
| 35 to 39 | 374 | 8.3% | 7.5% | 302 | 7.0% | 6.8% | +72 | +1.3pp |
| 40 to 44 | 311 | 6.9% | 6.6% | 252 | 5.8% | 6.4% | +59 | +1.1pp |
| 45 to 49 | 245 | 5.4% | 6.1% | 251 | 5.8% | 6.3% | -6 | -0.4pp |
| 50 to 54 | 260 | 5.8% | 5.9% | 285 | 6.6% | 6.4% | -25 | -0.8pp |
| 55 to 59 | 264 | 5.8% | 5.9% | 297 | 6.9% | 6.6% | -33 | -1.1pp |
| 60 to 64 | 268 | 5.9% | 6.1% | 286 | 6.6% | 6.2% | -18 | -0.7pp |
| 65 to 69 | 253 | 5.6% | 5.7% | 205 | 4.7% | 5.2% | +48 | +0.9pp |
| 70 to 74 | 162 | 3.6% | 4.8% | 109 | 2.5% | 3.7% | +53 | +1.1pp |
| 75 to 79 | 94 | 2.1% | 3.3% | 122 | 2.8% | 2.9% | -28 | -0.7pp |
| 80 to 84 | 93 | 2.1% | 2.3% | 91 | 2.1% | 2.4% | +2 | 0.0pp |
| 85 and over | 85 | 1.9% | 2.9% | 105 | 2.4% | 3.1% | -20 | -0.5pp |
| Total | 4,514 | 100.0% | 100.0% | 4,328 | 100.0% | 100.0% | +186 | 0.0pp |