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, 60 to 64 year olds was the largest age group among residents in Dorset (M), accounting for 9% (616 people). This share was higher than Regional Tas. (7.5%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 106 people and 1.3 percentage points.
Section overview
Age structure - Five year age groups
Dorset (M) - Total persons (Usual residence)
This table summarises five year age groups for Dorset (M) in 2021 for persons, with comparison against Regional Tas. and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Dorset (M), with comparison markers for Regional Tas..
0 to 4
2021 count
314
% of total
4.6%
Change from 2016
-0.1pp
314
4.6%
-0.1pp
5 to 9
2021 count
336
% of total
4.9%
Change from 2016
-1.6pp
336
4.9%
-1.6pp
10 to 14
2021 count
458
% of total
6.7%
Change from 2016
+0.7pp
458
6.7%
+0.7pp
15 to 19
2021 count
344
% of total
5.0%
Change from 2016
-0.2pp
344
5.0%
-0.2pp
20 to 24
2021 count
302
% of total
4.4%
Change from 2016
-0.5pp
302
4.4%
-0.5pp
25 to 29
2021 count
361
% of total
5.3%
Change from 2016
+1.1pp
361
5.3%
+1.1pp
30 to 34
2021 count
334
% of total
4.9%
Change from 2016
-0.4pp
334
4.9%
-0.4pp
35 to 39
2021 count
357
% of total
5.2%
Change from 2016
+0.7pp
357
5.2%
+0.7pp
40 to 44
2021 count
319
% of total
4.7%
Change from 2016
-0.7pp
319
4.7%
-0.7pp
45 to 49
2021 count
367
% of total
5.4%
Change from 2016
-0.8pp
367
5.4%
-0.8pp
50 to 54
2021 count
439
% of total
6.4%
Change from 2016
-0.7pp
439
6.4%
-0.7pp
55 to 59
2021 count
524
% of total
7.7%
Change from 2016
-1.1pp
524
7.7%
-1.1pp
60 to 64
2021 count
616
% of total
9.0%
Change from 2016
+1.1pp
616
9.0%
+1.1pp
65 to 69
2021 count
531
% of total
7.8%
Change from 2016
-0.7pp
531
7.8%
-0.7pp
70 to 74
2021 count
474
% of total
6.9%
Change from 2016
+1.3pp
474
6.9%
+1.3pp
75 to 79
2021 count
299
% of total
4.4%
Change from 2016
+0.1pp
299
4.4%
+0.1pp
80 to 84
2021 count
228
% of total
3.3%
Change from 2016
+0.5pp
228
3.3%
+0.5pp
85 and over
2021 count
222
% of total
3.3%
Change from 2016
+0.7pp
222
3.3%
+0.7pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+5
-0.1pp
5 to 9
-96
-1.6pp
10 to 14
+60
+0.7pp
15 to 19
+2
-0.2pp
20 to 24
-21
-0.5pp
25 to 29
+86
+1.1pp
30 to 34
-14
-0.4pp
35 to 39
+58
+0.7pp
40 to 44
-41
-0.7pp
45 to 49
-43
-0.8pp
50 to 54
-29
-0.7pp
55 to 59
-61
-1.1pp
60 to 64
+90
+1.1pp
65 to 69
-33
-0.7pp
70 to 74
+106
+1.3pp
75 to 79
+13
+0.1pp
80 to 84
+42
+0.5pp
85 and over
+48
+0.7pp
Data table
Five year age groups for Dorset (M). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Tas..
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional Tas.% | Count | % | Regional Tas.% | Count | pp | |
| 0 to 4 | 314 | 4.6% | 5.0% | 309 | 4.7% | 5.4% | +5 | -0.1pp |
| 5 to 9 | 336 | 4.9% | 5.5% | 432 | 6.5% | 6.1% | -96 | -1.6pp |
| 10 to 14 | 458 | 6.7% | 6.0% | 398 | 6.0% | 6.0% | +60 | +0.7pp |
| 15 to 19 | 344 | 5.0% | 5.4% | 342 | 5.2% | 6.1% | +2 | -0.2pp |
| 20 to 24 | 302 | 4.4% | 5.2% | 323 | 4.9% | 5.5% | -21 | -0.5pp |
| 25 to 29 | 361 | 5.3% | 6.1% | 275 | 4.2% | 5.0% | +86 | +1.1pp |
| 30 to 34 | 334 | 4.9% | 5.8% | 348 | 5.3% | 5.2% | -14 | -0.4pp |
| 35 to 39 | 357 | 5.2% | 5.7% | 299 | 4.5% | 5.2% | +58 | +0.7pp |
| 40 to 44 | 319 | 4.7% | 5.4% | 360 | 5.4% | 6.0% | -41 | -0.7pp |
| 45 to 49 | 367 | 5.4% | 6.0% | 410 | 6.2% | 6.9% | -43 | -0.8pp |
| 50 to 54 | 439 | 6.4% | 6.8% | 468 | 7.1% | 7.2% | -29 | -0.7pp |
| 55 to 59 | 524 | 7.7% | 7.1% | 585 | 8.8% | 7.6% | -61 | -1.1pp |
| 60 to 64 | 616 | 9.0% | 7.5% | 526 | 7.9% | 7.2% | +90 | +1.1pp |
| 65 to 69 | 531 | 7.8% | 6.9% | 564 | 8.5% | 7.0% | -33 | -0.7pp |
| 70 to 74 | 474 | 6.9% | 6.3% | 368 | 5.6% | 5.2% | +106 | +1.3pp |
| 75 to 79 | 299 | 4.4% | 4.3% | 286 | 4.3% | 3.7% | +13 | +0.1pp |
| 80 to 84 | 228 | 3.3% | 2.8% | 186 | 2.8% | 2.4% | +42 | +0.5pp |
| 85 and over | 222 | 3.3% | 2.4% | 174 | 2.6% | 2.3% | +48 | +0.7pp |
| Total | 6,829 | 100.0% | 100.0% | 6,617 | 100.0% | 100.0% | +212 | 0.0pp |