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, 45 to 49 year olds was the largest age group among residents in Manly West, accounting for 8.2% (1,017 people). This share was higher than Brisbane (C) (6.8%). Since 2016, the biggest change was in 45 to 49 year olds, which increased by 92 people and 0.5 percentage points.

Section overview

Age structure - Five year age groups

Manly West - Total persons (Usual residence)

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

Age structure - Five year age groups snapshot

2021 distribution by category for Manly West, with comparison markers for Brisbane (C).

Manly West
Brisbane (C)

0 to 4

2021 count

703

% of total

5.7%

Change from 2016

-0.8pp

5 to 9

2021 count

904

% of total

7.3%

Change from 2016

+0.1pp

10 to 14

2021 count

932

% of total

7.5%

Change from 2016

+0.4pp

15 to 19

2021 count

797

% of total

6.4%

Change from 2016

-0.4pp

20 to 24

2021 count

574

% of total

4.6%

Change from 2016

-0.7pp

25 to 29

2021 count

528

% of total

4.2%

Change from 2016

-0.4pp

30 to 34

2021 count

709

% of total

5.7%

Change from 2016

-0.2pp

35 to 39

2021 count

877

% of total

7.1%

Change from 2016

+0.4pp

40 to 44

2021 count

936

% of total

7.5%

Change from 2016

-0.6pp

45 to 49

2021 count

1,017

% of total

8.2%

Change from 2016

+0.5pp

50 to 54

2021 count

907

% of total

7.3%

Change from 2016

+0.5pp

55 to 59

2021 count

758

% of total

6.1%

Change from 2016

+0.3pp

60 to 64

2021 count

646

% of total

5.2%

Change from 2016

+0.4pp

65 to 69

2021 count

574

% of total

4.6%

Change from 2016

+0.3pp

70 to 74

2021 count

488

% of total

3.9%

Change from 2016

-0.2pp

75 to 79

2021 count

455

% of total

3.7%

Change from 2016

+0.4pp

80 to 84

2021 count

320

% of total

2.6%

Change from 2016

+0.2pp

85 and over

2021 count

328

% of total

2.6%

Change from 2016

+0.1pp

Data table

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

Five year age groups for Manly West. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
Five year age groups for Manly West. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
Category20212016Change
Count%Brisbane (C)%Count%Brisbane (C)%Countpp
0 to 47035.7%5.5%7806.5%6.0%-77-0.8pp
5 to 99047.3%6.0%8597.2%6.0%+45+0.1pp
10 to 149327.5%6.0%8527.1%5.6%+80+0.4pp
15 to 197976.4%6.0%8206.8%6.2%-23-0.4pp
20 to 245744.6%7.8%6325.3%8.7%-58-0.7pp
25 to 295284.2%8.4%5514.6%8.8%-23-0.4pp
30 to 347095.7%8.3%7065.9%8.5%+3-0.2pp
35 to 398777.1%8.1%8076.7%7.4%+70+0.4pp
40 to 449367.5%7.1%9718.1%7.3%-35-0.6pp
45 to 491,0178.2%6.8%9257.7%6.9%+92+0.5pp
50 to 549077.3%6.3%8206.8%6.1%+87+0.5pp
55 to 597586.1%5.5%6995.8%5.4%+59+0.3pp
60 to 646465.2%4.8%5724.8%4.6%+74+0.4pp
65 to 695744.6%4.0%5204.3%4.0%+54+0.3pp
70 to 744883.9%3.5%4974.1%2.9%-9-0.2pp
75 to 794553.7%2.5%3923.3%2.2%+63+0.4pp
80 to 843202.6%1.7%2892.4%1.6%+31+0.2pp
85 and over3282.6%1.8%3052.5%1.8%+23+0.1pp
Total12,436100.0%100.0%11,978100.0%100.0%+4580.0pp