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, 50 to 54 year olds was the largest age group among residents in Walkerville (M), accounting for 7% (564 people). This share was higher than Greater Adelaide (6.4%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 117 people and 1.2 percentage points.
Section overview
Age structure - Five year age groups
Walkerville (M) - Total persons (Usual residence)
This table summarises five year age groups for Walkerville (M) in 2021 for persons, with comparison against Greater Adelaide and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Walkerville (M), with comparison markers for Greater Adelaide.
0 to 4
2021 count
329
% of total
4.1%
Change from 2016
0.0pp
329
4.1%
0.0pp
5 to 9
2021 count
403
% of total
5.0%
Change from 2016
-0.4pp
403
5.0%
-0.4pp
10 to 14
2021 count
467
% of total
5.8%
Change from 2016
+0.3pp
467
5.8%
+0.3pp
15 to 19
2021 count
495
% of total
6.2%
Change from 2016
-0.7pp
495
6.2%
-0.7pp
20 to 24
2021 count
492
% of total
6.1%
Change from 2016
-0.8pp
492
6.1%
-0.8pp
25 to 29
2021 count
448
% of total
5.6%
Change from 2016
0.0pp
448
5.6%
0.0pp
30 to 34
2021 count
443
% of total
5.5%
Change from 2016
+0.4pp
443
5.5%
+0.4pp
35 to 39
2021 count
479
% of total
6.0%
Change from 2016
+0.8pp
479
6.0%
+0.8pp
40 to 44
2021 count
454
% of total
5.7%
Change from 2016
-0.1pp
454
5.7%
-0.1pp
45 to 49
2021 count
490
% of total
6.1%
Change from 2016
-1.3pp
490
6.1%
-1.3pp
50 to 54
2021 count
564
% of total
7.0%
Change from 2016
+0.8pp
564
7.0%
+0.8pp
55 to 59
2021 count
489
% of total
6.1%
Change from 2016
-1.2pp
489
6.1%
-1.2pp
60 to 64
2021 count
512
% of total
6.4%
Change from 2016
-0.2pp
512
6.4%
-0.2pp
65 to 69
2021 count
511
% of total
6.4%
Change from 2016
+0.3pp
511
6.4%
+0.3pp
70 to 74
2021 count
468
% of total
5.8%
Change from 2016
+1.2pp
468
5.8%
+1.2pp
75 to 79
2021 count
368
% of total
4.6%
Change from 2016
+0.2pp
368
4.6%
+0.2pp
80 to 84
2021 count
283
% of total
3.5%
Change from 2016
+0.5pp
283
3.5%
+0.5pp
85 and over
2021 count
347
% of total
4.3%
Change from 2016
+0.2pp
347
4.3%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+21
0.0pp
5 to 9
-4
-0.4pp
10 to 14
+49
+0.3pp
15 to 19
-23
-0.7pp
20 to 24
-32
-0.8pp
25 to 29
+24
0.0pp
30 to 34
+58
+0.4pp
35 to 39
+87
+0.8pp
40 to 44
+14
-0.1pp
45 to 49
-66
-1.3pp
50 to 54
+95
+0.8pp
55 to 59
-59
-1.2pp
60 to 64
+16
-0.2pp
65 to 69
+52
+0.3pp
70 to 74
+117
+1.2pp
75 to 79
+33
+0.2pp
80 to 84
+59
+0.5pp
85 and over
+38
+0.2pp
Data table
Five year age groups for Walkerville (M). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Greater Adelaide% | Count | % | Greater Adelaide% | Count | pp | |
| 0 to 4 | 329 | 4.1% | 5.4% | 308 | 4.1% | 5.9% | +21 | 0.0pp |
| 5 to 9 | 403 | 5.0% | 5.9% | 407 | 5.4% | 6.0% | -4 | -0.4pp |
| 10 to 14 | 467 | 5.8% | 5.9% | 418 | 5.5% | 5.6% | +49 | +0.3pp |
| 15 to 19 | 495 | 6.2% | 5.6% | 518 | 6.9% | 6.1% | -23 | -0.7pp |
| 20 to 24 | 492 | 6.1% | 6.6% | 524 | 6.9% | 6.9% | -32 | -0.8pp |
| 25 to 29 | 448 | 5.6% | 7.0% | 424 | 5.6% | 6.8% | +24 | 0.0pp |
| 30 to 34 | 443 | 5.5% | 7.0% | 385 | 5.1% | 7.0% | +58 | +0.4pp |
| 35 to 39 | 479 | 6.0% | 7.0% | 392 | 5.2% | 6.4% | +87 | +0.8pp |
| 40 to 44 | 454 | 5.7% | 6.3% | 440 | 5.8% | 6.5% | +14 | -0.1pp |
| 45 to 49 | 490 | 6.1% | 6.2% | 556 | 7.4% | 6.8% | -66 | -1.3pp |
| 50 to 54 | 564 | 7.0% | 6.4% | 469 | 6.2% | 6.6% | +95 | +0.8pp |
| 55 to 59 | 489 | 6.1% | 6.2% | 548 | 7.3% | 6.4% | -59 | -1.2pp |
| 60 to 64 | 512 | 6.4% | 5.9% | 496 | 6.6% | 5.7% | +16 | -0.2pp |
| 65 to 69 | 511 | 6.4% | 5.3% | 459 | 6.1% | 5.3% | +52 | +0.3pp |
| 70 to 74 | 468 | 5.8% | 4.9% | 351 | 4.6% | 4.0% | +117 | +1.2pp |
| 75 to 79 | 368 | 4.6% | 3.5% | 335 | 4.4% | 3.0% | +33 | +0.2pp |
| 80 to 84 | 283 | 3.5% | 2.4% | 224 | 3.0% | 2.3% | +59 | +0.5pp |
| 85 and over | 347 | 4.3% | 2.6% | 309 | 4.1% | 2.6% | +38 | +0.2pp |
| Total | 8,023 | 100.0% | 100.0% | 7,550 | 100.0% | 100.0% | +473 | 0.0pp |