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 Halls Head, accounting for 7.6% (1,102 people). This share was higher than Mandurah (C) (6.6%). Since 2016, the biggest change was in 55 to 59 year olds, which increased by 1,098 people, while its share fell by 1.3 percentage points.
Section overview
Age structure - Five year age groups
Halls Head - Total persons (Usual residence)
This table summarises five year age groups for Halls Head in 2021 for persons, with comparison against Mandurah (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Halls Head, with comparison markers for Mandurah (C).
0 to 4
2021 count
760
% of total
5.3%
Change from 2016
+5.3pp
760
5.3%
+5.3pp
5 to 9
2021 count
866
% of total
6.0%
Change from 2016
+6.0pp
866
6.0%
+6.0pp
10 to 14
2021 count
981
% of total
6.8%
Change from 2016
+6.8pp
981
6.8%
+6.8pp
15 to 19
2021 count
922
% of total
6.4%
Change from 2016
-2.5pp
922
6.4%
-2.5pp
20 to 24
2021 count
699
% of total
4.8%
Change from 2016
-1.9pp
699
4.8%
-1.9pp
25 to 29
2021 count
628
% of total
4.3%
Change from 2016
+4.3pp
628
4.3%
+4.3pp
30 to 34
2021 count
663
% of total
4.6%
Change from 2016
+4.6pp
663
4.6%
+4.6pp
35 to 39
2021 count
817
% of total
5.6%
Change from 2016
+5.6pp
817
5.6%
+5.6pp
40 to 44
2021 count
813
% of total
5.6%
Change from 2016
+5.6pp
813
5.6%
+5.6pp
45 to 49
2021 count
968
% of total
6.7%
Change from 2016
0.0pp
968
6.7%
0.0pp
50 to 54
2021 count
1,013
% of total
7.0%
Change from 2016
+0.3pp
1,013
7.0%
+0.3pp
55 to 59
2021 count
1,102
% of total
7.6%
Change from 2016
-1.3pp
1,102
7.6%
-1.3pp
60 to 64
2021 count
1,012
% of total
7.0%
Change from 2016
+7.0pp
1,012
7.0%
+7.0pp
65 to 69
2021 count
979
% of total
6.8%
Change from 2016
+0.1pp
979
6.8%
+0.1pp
70 to 74
2021 count
916
% of total
6.3%
Change from 2016
-0.4pp
916
6.3%
-0.4pp
75 to 79
2021 count
658
% of total
4.5%
Change from 2016
+4.5pp
658
4.5%
+4.5pp
80 to 84
2021 count
393
% of total
2.7%
Change from 2016
+2.7pp
393
2.7%
+2.7pp
85 and over
2021 count
320
% of total
2.2%
Change from 2016
+2.2pp
320
2.2%
+2.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+760
+5.3pp
5 to 9
+866
+6.0pp
10 to 14
+981
+6.8pp
15 to 19
+918
-2.5pp
20 to 24
+696
-1.9pp
25 to 29
+628
+4.3pp
30 to 34
+663
+4.6pp
35 to 39
+817
+5.6pp
40 to 44
+813
+5.6pp
45 to 49
+965
0.0pp
50 to 54
+1,010
+0.3pp
55 to 59
+1,098
-1.3pp
60 to 64
+1,012
+7.0pp
65 to 69
+976
+0.1pp
70 to 74
+913
-0.4pp
75 to 79
+658
+4.5pp
80 to 84
+393
+2.7pp
85 and over
+320
+2.2pp
Data table
Five year age groups for Halls Head. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mandurah (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mandurah (C)% | Count | % | Mandurah (C)% | Count | pp | |
| 0 to 4 | 760 | 5.3% | 5.3% | 0 | 0.0% | 5.8% | +760 | +5.3pp |
| 5 to 9 | 866 | 6.0% | 5.8% | 0 | 0.0% | 6.3% | +866 | +6.0pp |
| 10 to 14 | 981 | 6.8% | 6.3% | 0 | 0.0% | 5.9% | +981 | +6.8pp |
| 15 to 19 | 922 | 6.4% | 5.5% | 4 | 8.9% | 6.0% | +918 | -2.5pp |
| 20 to 24 | 699 | 4.8% | 5.0% | 3 | 6.7% | 5.4% | +696 | -1.9pp |
| 25 to 29 | 628 | 4.3% | 4.8% | 0 | 0.0% | 5.2% | +628 | +4.3pp |
| 30 to 34 | 663 | 4.6% | 5.4% | 0 | 0.0% | 5.7% | +663 | +4.6pp |
| 35 to 39 | 817 | 5.6% | 5.8% | 0 | 0.0% | 5.4% | +817 | +5.6pp |
| 40 to 44 | 813 | 5.6% | 5.3% | 0 | 0.0% | 6.1% | +813 | +5.6pp |
| 45 to 49 | 968 | 6.7% | 5.9% | 3 | 6.7% | 6.4% | +965 | 0.0pp |
| 50 to 54 | 1,013 | 7.0% | 6.2% | 3 | 6.7% | 6.5% | +1,010 | +0.3pp |
| 55 to 59 | 1,102 | 7.6% | 6.6% | 4 | 8.9% | 6.3% | +1,098 | -1.3pp |
| 60 to 64 | 1,012 | 7.0% | 6.7% | 0 | 0.0% | 6.4% | +1,012 | +7.0pp |
| 65 to 69 | 979 | 6.8% | 6.9% | 3 | 6.7% | 6.8% | +976 | +0.1pp |
| 70 to 74 | 916 | 6.3% | 6.9% | 3 | 6.7% | 5.7% | +913 | -0.4pp |
| 75 to 79 | 658 | 4.5% | 5.1% | 0 | 0.0% | 4.6% | +658 | +4.5pp |
| 80 to 84 | 393 | 2.7% | 3.6% | 0 | 0.0% | 3.0% | +393 | +2.7pp |
| 85 and over | 320 | 2.2% | 3.0% | 0 | 0.0% | 2.6% | +320 | +2.2pp |
| Total | 14,474 | 100.0% | 100.0% | 45 | 100.0% | 100.0% | +14,429 | 0.0pp |