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, 55 to 59 year olds was the largest age group among residents in Whyalla Norrie, accounting for 7.3% (460 people). This share was similar to Whyalla (C) (7.4%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 288 people and 1.8 percentage points.
Section overview
Age structure - Five year age groups
Whyalla Norrie - Total persons (Usual residence)
This table summarises five year age groups for Whyalla Norrie in 2021 for persons, with comparison against Whyalla (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Whyalla Norrie, with comparison markers for Whyalla (C).
0 to 4
2021 count
356
% of total
5.7%
Change from 2016
-1.1pp
356
5.7%
-1.1pp
5 to 9
2021 count
408
% of total
6.5%
Change from 2016
-0.9pp
408
6.5%
-0.9pp
10 to 14
2021 count
430
% of total
6.8%
Change from 2016
+0.3pp
430
6.8%
+0.3pp
15 to 19
2021 count
360
% of total
5.7%
Change from 2016
-0.7pp
360
5.7%
-0.7pp
20 to 24
2021 count
405
% of total
6.4%
Change from 2016
+0.7pp
405
6.4%
+0.7pp
25 to 29
2021 count
423
% of total
6.7%
Change from 2016
+1.8pp
423
6.7%
+1.8pp
30 to 34
2021 count
396
% of total
6.3%
Change from 2016
+1.1pp
396
6.3%
+1.1pp
35 to 39
2021 count
385
% of total
6.1%
Change from 2016
+0.8pp
385
6.1%
+0.8pp
40 to 44
2021 count
316
% of total
5.0%
Change from 2016
-2.4pp
316
5.0%
-2.4pp
45 to 49
2021 count
420
% of total
6.7%
Change from 2016
-1.1pp
420
6.7%
-1.1pp
50 to 54
2021 count
447
% of total
7.1%
Change from 2016
-0.2pp
447
7.1%
-0.2pp
55 to 59
2021 count
460
% of total
7.3%
Change from 2016
+0.2pp
460
7.3%
+0.2pp
60 to 64
2021 count
398
% of total
6.3%
Change from 2016
+0.1pp
398
6.3%
+0.1pp
65 to 69
2021 count
277
% of total
4.4%
Change from 2016
-1.0pp
277
4.4%
-1.0pp
70 to 74
2021 count
303
% of total
4.8%
Change from 2016
+1.6pp
303
4.8%
+1.6pp
75 to 79
2021 count
224
% of total
3.6%
Change from 2016
+1.7pp
224
3.6%
+1.7pp
80 to 84
2021 count
183
% of total
2.9%
Change from 2016
+1.1pp
183
2.9%
+1.1pp
85 and over
2021 count
113
% of total
1.8%
Change from 2016
-0.2pp
113
1.8%
-0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+170
-1.1pp
5 to 9
+204
-0.9pp
10 to 14
+250
+0.3pp
15 to 19
+184
-0.7pp
20 to 24
+249
+0.7pp
25 to 29
+288
+1.8pp
30 to 34
+253
+1.1pp
35 to 39
+239
+0.8pp
40 to 44
+111
-2.4pp
45 to 49
+205
-1.1pp
50 to 54
+247
-0.2pp
55 to 59
+265
+0.2pp
60 to 64
+227
+0.1pp
65 to 69
+129
-1.0pp
70 to 74
+214
+1.6pp
75 to 79
+172
+1.7pp
80 to 84
+134
+1.1pp
85 and over
+59
-0.2pp
Data table
Five year age groups for Whyalla Norrie. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Whyalla (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Whyalla (C)% | Count | % | Whyalla (C)% | Count | pp | |
| 0 to 4 | 356 | 5.7% | 5.4% | 186 | 6.8% | 6.1% | +170 | -1.1pp |
| 5 to 9 | 408 | 6.5% | 6.1% | 204 | 7.4% | 6.5% | +204 | -0.9pp |
| 10 to 14 | 430 | 6.8% | 6.3% | 180 | 6.5% | 6.5% | +250 | +0.3pp |
| 15 to 19 | 360 | 5.7% | 5.7% | 176 | 6.4% | 6.1% | +184 | -0.7pp |
| 20 to 24 | 405 | 6.4% | 5.8% | 156 | 5.7% | 5.9% | +249 | +0.7pp |
| 25 to 29 | 423 | 6.7% | 6.4% | 135 | 4.9% | 6.4% | +288 | +1.8pp |
| 30 to 34 | 396 | 6.3% | 6.3% | 143 | 5.2% | 6.3% | +253 | +1.1pp |
| 35 to 39 | 385 | 6.1% | 6.0% | 146 | 5.3% | 5.2% | +239 | +0.8pp |
| 40 to 44 | 316 | 5.0% | 5.1% | 205 | 7.4% | 6.6% | +111 | -2.4pp |
| 45 to 49 | 420 | 6.7% | 6.6% | 215 | 7.8% | 7.3% | +205 | -1.1pp |
| 50 to 54 | 447 | 7.1% | 7.3% | 200 | 7.3% | 7.5% | +247 | -0.2pp |
| 55 to 59 | 460 | 7.3% | 7.4% | 195 | 7.1% | 6.9% | +265 | +0.2pp |
| 60 to 64 | 398 | 6.3% | 6.7% | 171 | 6.2% | 5.4% | +227 | +0.1pp |
| 65 to 69 | 277 | 4.4% | 5.2% | 148 | 5.4% | 5.1% | +129 | -1.0pp |
| 70 to 74 | 303 | 4.8% | 4.8% | 89 | 3.2% | 4.3% | +214 | +1.6pp |
| 75 to 79 | 224 | 3.6% | 3.9% | 52 | 1.9% | 3.7% | +172 | +1.7pp |
| 80 to 84 | 183 | 2.9% | 2.9% | 49 | 1.8% | 2.1% | +134 | +1.1pp |
| 85 and over | 113 | 1.8% | 2.1% | 54 | 2.0% | 2.0% | +59 | -0.2pp |
| Total | 6,288 | 100.0% | 100.0% | 2,755 | 100.0% | 100.0% | +3,533 | 0.0pp |