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.

Key insight

In 2021, 55 to 59 year olds was the largest age group among residents in Manjimup (S), accounting for 8.6% (781 people). This share was higher than Regional WA (6.8%). Since 2016, the biggest change was in 10 to 14 year olds, which decreased by 126 people and 1.3 percentage points.

Section overview

Age structure - Five year age groups

Manjimup (S) - Total persons (Usual residence)

This table summarises five year age groups for Manjimup (S) in 2021 for persons, with comparison against Regional WA and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Manjimup (S), with comparison markers for Regional WA.

Manjimup (S)
Regional WA

0 to 4

2021 count

424

% of total

4.7%

Change from 2016

-0.6pp

5 to 9

2021 count

494

% of total

5.4%

Change from 2016

-0.6pp

10 to 14

2021 count

555

% of total

6.1%

Change from 2016

-1.3pp

15 to 19

2021 count

539

% of total

5.9%

Change from 2016

-0.4pp

20 to 24

2021 count

382

% of total

4.2%

Change from 2016

-0.2pp

25 to 29

2021 count

436

% of total

4.8%

Change from 2016

+0.2pp

30 to 34

2021 count

477

% of total

5.2%

Change from 2016

+0.6pp

35 to 39

2021 count

477

% of total

5.2%

Change from 2016

+0.4pp

40 to 44

2021 count

475

% of total

5.2%

Change from 2016

-0.9pp

45 to 49

2021 count

569

% of total

6.3%

Change from 2016

-0.8pp

50 to 54

2021 count

676

% of total

7.4%

Change from 2016

-0.6pp

55 to 59

2021 count

781

% of total

8.6%

Change from 2016

+0.5pp

60 to 64

2021 count

723

% of total

8.0%

Change from 2016

+0.6pp

65 to 69

2021 count

675

% of total

7.4%

Change from 2016

+1.2pp

70 to 74

2021 count

535

% of total

5.9%

Change from 2016

+0.7pp

75 to 79

2021 count

398

% of total

4.4%

Change from 2016

+0.9pp

80 to 84

2021 count

250

% of total

2.7%

Change from 2016

+0.1pp

85 and over

2021 count

227

% of total

2.5%

Change from 2016

+0.3pp

Data table

Five year age groups for Manjimup (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.

Five year age groups for Manjimup (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
Five year age groups for Manjimup (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
Category20212016Change
Count%Regional WA%Count%Regional WA%Countpp
0 to 44244.7%6.0%4925.3%6.6%-68-0.6pp
5 to 94945.4%6.7%5576.0%7.1%-63-0.6pp
10 to 145556.1%6.7%6817.4%6.5%-126-1.3pp
15 to 195395.9%5.5%5846.3%5.7%-45-0.4pp
20 to 243824.2%4.8%4104.4%5.0%-28-0.2pp
25 to 294364.8%5.9%4304.6%6.5%+6+0.2pp
30 to 344775.2%6.6%4224.6%7.1%+55+0.6pp
35 to 394775.2%6.8%4474.8%6.7%+30+0.4pp
40 to 444755.2%6.4%5646.1%7.0%-89-0.9pp
45 to 495696.3%6.6%6547.1%7.2%-85-0.8pp
50 to 546767.4%6.9%7448.0%7.1%-68-0.6pp
55 to 597818.6%6.8%7508.1%6.9%+31+0.5pp
60 to 647238.0%6.7%6877.4%6.0%+36+0.6pp
65 to 696757.4%5.7%5776.2%5.3%+98+1.2pp
70 to 745355.9%4.9%4855.2%3.6%+50+0.7pp
75 to 793984.4%3.2%3243.5%2.6%+74+0.9pp
80 to 842502.7%2.0%2392.6%1.6%+11+0.1pp
85 and over2272.5%1.7%2052.2%1.5%+22+0.3pp
Total9,093100.0%100.0%9,250100.0%100.0%-1570.0pp