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, 50 to 54 year olds was the largest age group among residents in Donvale, accounting for 7.4% (934 people). This share was higher than Manningham (C) (6.9%). Since 2016, the biggest change was in 25 to 29 year olds, which decreased by 123 people and 1.1 percentage points.

Section overview

Age structure - Five year age groups

Donvale - Total persons (Usual residence)

This table summarises five year age groups for Donvale in 2021 for persons, with comparison against Manningham (C) and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Donvale, with comparison markers for Manningham (C).

Donvale
Manningham (C)

0 to 4

2021 count

525

% of total

4.2%

Change from 2016

-0.9pp

5 to 9

2021 count

751

% of total

5.9%

Change from 2016

+0.2pp

10 to 14

2021 count

809

% of total

6.4%

Change from 2016

+0.1pp

15 to 19

2021 count

806

% of total

6.4%

Change from 2016

-0.2pp

20 to 24

2021 count

728

% of total

5.8%

Change from 2016

0.0pp

25 to 29

2021 count

470

% of total

3.7%

Change from 2016

-1.1pp

30 to 34

2021 count

594

% of total

4.7%

Change from 2016

-0.1pp

35 to 39

2021 count

702

% of total

5.6%

Change from 2016

+0.1pp

40 to 44

2021 count

806

% of total

6.4%

Change from 2016

0.0pp

45 to 49

2021 count

882

% of total

7.0%

Change from 2016

-0.5pp

50 to 54

2021 count

934

% of total

7.4%

Change from 2016

+0.5pp

55 to 59

2021 count

829

% of total

6.6%

Change from 2016

-0.2pp

60 to 64

2021 count

811

% of total

6.4%

Change from 2016

+0.6pp

65 to 69

2021 count

668

% of total

5.3%

Change from 2016

-0.4pp

70 to 74

2021 count

686

% of total

5.4%

Change from 2016

+0.6pp

75 to 79

2021 count

568

% of total

4.5%

Change from 2016

+0.5pp

80 to 84

2021 count

475

% of total

3.8%

Change from 2016

+0.9pp

85 and over

2021 count

588

% of total

4.7%

Change from 2016

+0.2pp

Data table

Five year age groups for Donvale. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Manningham (C).

Five year age groups for Donvale. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Manningham (C).
Five year age groups for Donvale. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Manningham (C).
Category20212016Change
Count%Manningham (C)%Count%Manningham (C)%Countpp
0 to 45254.2%4.5%6315.1%4.8%-106-0.9pp
5 to 97515.9%5.8%7005.7%5.6%+51+0.2pp
10 to 148096.4%5.9%7846.3%5.7%+25+0.1pp
15 to 198066.4%5.9%8106.6%6.5%-4-0.2pp
20 to 247285.8%5.9%7125.8%6.2%+160.0pp
25 to 294703.7%5.1%5934.8%5.7%-123-1.1pp
30 to 345944.7%5.7%5964.8%5.4%-2-0.1pp
35 to 397025.6%6.4%6855.5%5.7%+17+0.1pp
40 to 448066.4%6.4%7956.4%6.3%+110.0pp
45 to 498827.0%6.5%9247.5%7.3%-42-0.5pp
50 to 549347.4%6.9%8516.9%7.1%+83+0.5pp
55 to 598296.6%6.6%8396.8%6.7%-10-0.2pp
60 to 648116.4%6.1%7145.8%5.8%+97+0.6pp
65 to 696685.3%5.3%7075.7%5.6%-39-0.4pp
70 to 746865.4%5.1%5934.8%5.0%+93+0.6pp
75 to 795684.5%4.4%4924.0%4.4%+76+0.5pp
80 to 844753.8%3.7%3612.9%3.1%+114+0.9pp
85 and over5884.7%3.7%5544.5%3.2%+34+0.2pp
Total12,644100.0%100.0%12,347100.0%100.0%+2970.0pp