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, 5 to 9 year olds was the largest age group among residents in Lakelands (WA), accounting for 9.2% (570 people). This share was higher than Mandurah (C) (5.8%). Since 2016, the biggest change was in 5 to 9 year olds, which increased by 570 people and 9.2 percentage points.
Section overview
Age structure - Five year age groups
Lakelands (WA) - Total persons (Usual residence)
This table summarises five year age groups for Lakelands (WA) 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 Lakelands (WA), with comparison markers for Mandurah (C).
0 to 4
2021 count
516
% of total
8.4%
Change from 2016
+8.4pp
516
8.4%
+8.4pp
5 to 9
2021 count
570
% of total
9.2%
Change from 2016
+9.2pp
570
9.2%
+9.2pp
10 to 14
2021 count
516
% of total
8.4%
Change from 2016
+8.4pp
516
8.4%
+8.4pp
15 to 19
2021 count
400
% of total
6.5%
Change from 2016
+6.5pp
400
6.5%
+6.5pp
20 to 24
2021 count
337
% of total
5.5%
Change from 2016
+5.5pp
337
5.5%
+5.5pp
25 to 29
2021 count
430
% of total
7.0%
Change from 2016
+7.0pp
430
7.0%
+7.0pp
30 to 34
2021 count
541
% of total
8.8%
Change from 2016
+8.8pp
541
8.8%
+8.8pp
35 to 39
2021 count
550
% of total
8.9%
Change from 2016
+8.9pp
550
8.9%
+8.9pp
40 to 44
2021 count
376
% of total
6.1%
Change from 2016
+6.1pp
376
6.1%
+6.1pp
45 to 49
2021 count
341
% of total
5.5%
Change from 2016
+5.5pp
341
5.5%
+5.5pp
50 to 54
2021 count
342
% of total
5.5%
Change from 2016
+5.5pp
342
5.5%
+5.5pp
55 to 59
2021 count
234
% of total
3.8%
Change from 2016
+3.8pp
234
3.8%
+3.8pp
60 to 64
2021 count
201
% of total
3.3%
Change from 2016
+3.3pp
201
3.3%
+3.3pp
65 to 69
2021 count
190
% of total
3.1%
Change from 2016
+3.1pp
190
3.1%
+3.1pp
70 to 74
2021 count
247
% of total
4.0%
Change from 2016
+4.0pp
247
4.0%
+4.0pp
75 to 79
2021 count
201
% of total
3.3%
Change from 2016
+3.3pp
201
3.3%
+3.3pp
80 to 84
2021 count
109
% of total
1.8%
Change from 2016
+1.8pp
109
1.8%
+1.8pp
85 and over
2021 count
47
% of total
0.8%
Change from 2016
+0.8pp
47
0.8%
+0.8pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+516
+8.4pp
5 to 9
+570
+9.2pp
10 to 14
+516
+8.4pp
15 to 19
+400
+6.5pp
20 to 24
+337
+5.5pp
25 to 29
+430
+7.0pp
30 to 34
+541
+8.8pp
35 to 39
+550
+8.9pp
40 to 44
+376
+6.1pp
45 to 49
+341
+5.5pp
50 to 54
+342
+5.5pp
55 to 59
+234
+3.8pp
60 to 64
+201
+3.3pp
65 to 69
+190
+3.1pp
70 to 74
+247
+4.0pp
75 to 79
+201
+3.3pp
80 to 84
+109
+1.8pp
85 and over
+47
+0.8pp
Data table
Five year age groups for Lakelands (WA). 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 | 516 | 8.4% | 5.3% | 0 | 0.0% | 5.8% | +516 | +8.4pp |
| 5 to 9 | 570 | 9.2% | 5.8% | 0 | 0.0% | 6.3% | +570 | +9.2pp |
| 10 to 14 | 516 | 8.4% | 6.3% | 0 | 0.0% | 5.9% | +516 | +8.4pp |
| 15 to 19 | 400 | 6.5% | 5.5% | 0 | 0.0% | 6.0% | +400 | +6.5pp |
| 20 to 24 | 337 | 5.5% | 5.0% | 0 | 0.0% | 5.4% | +337 | +5.5pp |
| 25 to 29 | 430 | 7.0% | 4.8% | 0 | 0.0% | 5.2% | +430 | +7.0pp |
| 30 to 34 | 541 | 8.8% | 5.4% | 0 | 0.0% | 5.7% | +541 | +8.8pp |
| 35 to 39 | 550 | 8.9% | 5.8% | 0 | 0.0% | 5.4% | +550 | +8.9pp |
| 40 to 44 | 376 | 6.1% | 5.3% | 0 | 0.0% | 6.1% | +376 | +6.1pp |
| 45 to 49 | 341 | 5.5% | 5.9% | 0 | 0.0% | 6.4% | +341 | +5.5pp |
| 50 to 54 | 342 | 5.5% | 6.2% | 0 | 0.0% | 6.5% | +342 | +5.5pp |
| 55 to 59 | 234 | 3.8% | 6.6% | 0 | 0.0% | 6.3% | +234 | +3.8pp |
| 60 to 64 | 201 | 3.3% | 6.7% | 0 | 0.0% | 6.4% | +201 | +3.3pp |
| 65 to 69 | 190 | 3.1% | 6.9% | 0 | 0.0% | 6.8% | +190 | +3.1pp |
| 70 to 74 | 247 | 4.0% | 6.9% | 0 | 0.0% | 5.7% | +247 | +4.0pp |
| 75 to 79 | 201 | 3.3% | 5.1% | 0 | 0.0% | 4.6% | +201 | +3.3pp |
| 80 to 84 | 109 | 1.8% | 3.6% | 0 | 0.0% | 3.0% | +109 | +1.8pp |
| 85 and over | 47 | 0.8% | 3.0% | 0 | 0.0% | 2.6% | +47 | +0.8pp |
| Total | 6,171 | 100.0% | 100.0% | 10 | 100.0% | 100.0% | +6,161 | 0.0pp |