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 Circular Head (M), accounting for 7.7% (621 people). This share was higher than Regional Tas. (7.5%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 144 people and 1.6 percentage points.
Section overview
Age structure - Five year age groups
Circular Head (M) - Total persons (Usual residence)
This table summarises five year age groups for Circular Head (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 Circular Head (M), with comparison markers for Regional Tas..
0 to 4
2021 count
501
% of total
6.2%
Change from 2016
0.0pp
501
6.2%
0.0pp
5 to 9
2021 count
492
% of total
6.1%
Change from 2016
-1.5pp
492
6.1%
-1.5pp
10 to 14
2021 count
553
% of total
6.8%
Change from 2016
+0.1pp
553
6.8%
+0.1pp
15 to 19
2021 count
476
% of total
5.9%
Change from 2016
-0.4pp
476
5.9%
-0.4pp
20 to 24
2021 count
398
% of total
4.9%
Change from 2016
-1.4pp
398
4.9%
-1.4pp
25 to 29
2021 count
546
% of total
6.7%
Change from 2016
+1.6pp
546
6.7%
+1.6pp
30 to 34
2021 count
468
% of total
5.8%
Change from 2016
-0.1pp
468
5.8%
-0.1pp
35 to 39
2021 count
493
% of total
6.1%
Change from 2016
+1.1pp
493
6.1%
+1.1pp
40 to 44
2021 count
407
% of total
5.0%
Change from 2016
-0.9pp
407
5.0%
-0.9pp
45 to 49
2021 count
457
% of total
5.6%
Change from 2016
-0.9pp
457
5.6%
-0.9pp
50 to 54
2021 count
549
% of total
6.8%
Change from 2016
-0.5pp
549
6.8%
-0.5pp
55 to 59
2021 count
563
% of total
6.9%
Change from 2016
-1.1pp
563
6.9%
-1.1pp
60 to 64
2021 count
621
% of total
7.7%
Change from 2016
+0.9pp
621
7.7%
+0.9pp
65 to 69
2021 count
543
% of total
6.7%
Change from 2016
+1.1pp
543
6.7%
+1.1pp
70 to 74
2021 count
429
% of total
5.3%
Change from 2016
+0.8pp
429
5.3%
+0.8pp
75 to 79
2021 count
293
% of total
3.6%
Change from 2016
+1.0pp
293
3.6%
+1.0pp
80 to 84
2021 count
181
% of total
2.2%
Change from 2016
-0.1pp
181
2.2%
-0.1pp
85 and over
2021 count
169
% of total
2.1%
Change from 2016
+0.7pp
169
2.1%
+0.7pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+6
0.0pp
5 to 9
-111
-1.5pp
10 to 14
+20
+0.1pp
15 to 19
-21
-0.4pp
20 to 24
-99
-1.4pp
25 to 29
+144
+1.6pp
30 to 34
+2
-0.1pp
35 to 39
+94
+1.1pp
40 to 44
-57
-0.9pp
45 to 49
-62
-0.9pp
50 to 54
-30
-0.5pp
55 to 59
-73
-1.1pp
60 to 64
+83
+0.9pp
65 to 69
+98
+1.1pp
70 to 74
+74
+0.8pp
75 to 79
+84
+1.0pp
80 to 84
+2
-0.1pp
85 and over
+59
+0.7pp
Data table
Five year age groups for Circular Head (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 | 501 | 6.2% | 5.0% | 495 | 6.2% | 5.4% | +6 | 0.0pp |
| 5 to 9 | 492 | 6.1% | 5.5% | 603 | 7.6% | 6.1% | -111 | -1.5pp |
| 10 to 14 | 553 | 6.8% | 6.0% | 533 | 6.7% | 6.0% | +20 | +0.1pp |
| 15 to 19 | 476 | 5.9% | 5.4% | 497 | 6.3% | 6.1% | -21 | -0.4pp |
| 20 to 24 | 398 | 4.9% | 5.2% | 497 | 6.3% | 5.5% | -99 | -1.4pp |
| 25 to 29 | 546 | 6.7% | 6.1% | 402 | 5.1% | 5.0% | +144 | +1.6pp |
| 30 to 34 | 468 | 5.8% | 5.8% | 466 | 5.9% | 5.2% | +2 | -0.1pp |
| 35 to 39 | 493 | 6.1% | 5.7% | 399 | 5.0% | 5.2% | +94 | +1.1pp |
| 40 to 44 | 407 | 5.0% | 5.4% | 464 | 5.9% | 6.0% | -57 | -0.9pp |
| 45 to 49 | 457 | 5.6% | 6.0% | 519 | 6.5% | 6.9% | -62 | -0.9pp |
| 50 to 54 | 549 | 6.8% | 6.8% | 579 | 7.3% | 7.2% | -30 | -0.5pp |
| 55 to 59 | 563 | 6.9% | 7.1% | 636 | 8.0% | 7.6% | -73 | -1.1pp |
| 60 to 64 | 621 | 7.7% | 7.5% | 538 | 6.8% | 7.2% | +83 | +0.9pp |
| 65 to 69 | 543 | 6.7% | 6.9% | 445 | 5.6% | 7.0% | +98 | +1.1pp |
| 70 to 74 | 429 | 5.3% | 6.3% | 355 | 4.5% | 5.2% | +74 | +0.8pp |
| 75 to 79 | 293 | 3.6% | 4.3% | 209 | 2.6% | 3.7% | +84 | +1.0pp |
| 80 to 84 | 181 | 2.2% | 2.8% | 179 | 2.3% | 2.4% | +2 | -0.1pp |
| 85 and over | 169 | 2.1% | 2.4% | 110 | 1.4% | 2.3% | +59 | +0.7pp |
| Total | 8,117 | 100.0% | 100.0% | 7,926 | 100.0% | 100.0% | +191 | 0.0pp |