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, 35 to 39 year olds was the largest age group among residents in Parkside (SA), accounting for 8% (408 people). This share was higher than Unley (C) (6.4%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 408 people and 8 percentage points.
Section overview
Age structure - Five year age groups
Parkside (SA) - Total persons (Usual residence)
This table summarises five year age groups for Parkside (SA) in 2021 for persons, with comparison against Unley (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Parkside (SA), with comparison markers for Unley (C).
0 to 4
2021 count
254
% of total
5.0%
Change from 2016
+5.0pp
254
5.0%
+5.0pp
5 to 9
2021 count
267
% of total
5.2%
Change from 2016
+5.2pp
267
5.2%
+5.2pp
10 to 14
2021 count
317
% of total
6.2%
Change from 2016
+6.2pp
317
6.2%
+6.2pp
15 to 19
2021 count
248
% of total
4.8%
Change from 2016
-4.6pp
248
4.8%
-4.6pp
20 to 24
2021 count
292
% of total
5.7%
Change from 2016
+5.7pp
292
5.7%
+5.7pp
25 to 29
2021 count
386
% of total
7.5%
Change from 2016
+7.5pp
386
7.5%
+7.5pp
30 to 34
2021 count
380
% of total
7.4%
Change from 2016
+7.4pp
380
7.4%
+7.4pp
35 to 39
2021 count
408
% of total
8.0%
Change from 2016
+8.0pp
408
8.0%
+8.0pp
40 to 44
2021 count
398
% of total
7.8%
Change from 2016
+7.8pp
398
7.8%
+7.8pp
45 to 49
2021 count
372
% of total
7.3%
Change from 2016
-5.2pp
372
7.3%
-5.2pp
50 to 54
2021 count
314
% of total
6.1%
Change from 2016
+6.1pp
314
6.1%
+6.1pp
55 to 59
2021 count
267
% of total
5.2%
Change from 2016
-13.6pp
267
5.2%
-13.6pp
60 to 64
2021 count
299
% of total
5.8%
Change from 2016
+5.8pp
299
5.8%
+5.8pp
65 to 69
2021 count
277
% of total
5.4%
Change from 2016
+5.4pp
277
5.4%
+5.4pp
70 to 74
2021 count
237
% of total
4.6%
Change from 2016
+4.6pp
237
4.6%
+4.6pp
75 to 79
2021 count
137
% of total
2.7%
Change from 2016
+2.7pp
137
2.7%
+2.7pp
80 to 84
2021 count
105
% of total
2.0%
Change from 2016
+2.0pp
105
2.0%
+2.0pp
85 and over
2021 count
146
% of total
2.8%
Change from 2016
+2.8pp
146
2.8%
+2.8pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+254
+5.0pp
5 to 9
+267
+5.2pp
10 to 14
+317
+6.2pp
15 to 19
+245
-4.6pp
20 to 24
+292
+5.7pp
25 to 29
+386
+7.5pp
30 to 34
+380
+7.4pp
35 to 39
+408
+8.0pp
40 to 44
+398
+7.8pp
45 to 49
+368
-5.2pp
50 to 54
+314
+6.1pp
55 to 59
+261
-13.6pp
60 to 64
+299
+5.8pp
65 to 69
+277
+5.4pp
70 to 74
+237
+4.6pp
75 to 79
+137
+2.7pp
80 to 84
+105
+2.0pp
85 and over
+146
+2.8pp
Data table
Five year age groups for Parkside (SA). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Unley (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Unley (C)% | Count | % | Unley (C)% | Count | pp | |
| 0 to 4 | 254 | 5.0% | 4.3% | 0 | 0.0% | 4.7% | +254 | +5.0pp |
| 5 to 9 | 267 | 5.2% | 5.3% | 0 | 0.0% | 5.7% | +267 | +5.2pp |
| 10 to 14 | 317 | 6.2% | 5.8% | 0 | 0.0% | 5.5% | +317 | +6.2pp |
| 15 to 19 | 248 | 4.8% | 5.4% | 3 | 9.4% | 5.8% | +245 | -4.6pp |
| 20 to 24 | 292 | 5.7% | 6.2% | 0 | 0.0% | 6.8% | +292 | +5.7pp |
| 25 to 29 | 386 | 7.5% | 6.3% | 0 | 0.0% | 7.0% | +386 | +7.5pp |
| 30 to 34 | 380 | 7.4% | 6.1% | 0 | 0.0% | 6.6% | +380 | +7.4pp |
| 35 to 39 | 408 | 8.0% | 6.4% | 0 | 0.0% | 6.4% | +408 | +8.0pp |
| 40 to 44 | 398 | 7.8% | 6.6% | 0 | 0.0% | 6.7% | +398 | +7.8pp |
| 45 to 49 | 372 | 7.3% | 6.6% | 4 | 12.5% | 6.7% | +368 | -5.2pp |
| 50 to 54 | 314 | 6.1% | 6.6% | 0 | 0.0% | 6.4% | +314 | +6.1pp |
| 55 to 59 | 267 | 5.2% | 6.0% | 6 | 18.8% | 6.3% | +261 | -13.6pp |
| 60 to 64 | 299 | 5.8% | 6.1% | 0 | 0.0% | 6.3% | +299 | +5.8pp |
| 65 to 69 | 277 | 5.4% | 5.8% | 0 | 0.0% | 5.6% | +277 | +5.4pp |
| 70 to 74 | 237 | 4.6% | 5.5% | 0 | 0.0% | 3.9% | +237 | +4.6pp |
| 75 to 79 | 137 | 2.7% | 3.8% | 0 | 0.0% | 3.0% | +137 | +2.7pp |
| 80 to 84 | 105 | 2.0% | 2.9% | 0 | 0.0% | 2.3% | +105 | +2.0pp |
| 85 and over | 146 | 2.8% | 4.1% | 0 | 0.0% | 4.3% | +146 | +2.8pp |
| Total | 5,126 | 100.0% | 100.0% | 32 | 100.0% | 100.0% | +5,094 | 0.0pp |