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, 25 to 29 year olds was the largest age group among residents in Cambridge Park, accounting for 7.9% (560 people). This share was higher than Penrith (C) (7.4%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 430 people and 1.4 percentage points.

Section overview

Age structure - Five year age groups

Cambridge Park - Total persons (Usual residence)

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

Age structure - Five year age groups snapshot

2021 distribution by category for Cambridge Park, with comparison markers for Penrith (C).

Cambridge Park
Penrith (C)

0 to 4

2021 count

534

% of total

7.6%

Change from 2016

+0.4pp

5 to 9

2021 count

530

% of total

7.5%

Change from 2016

0.0pp

10 to 14

2021 count

494

% of total

7.0%

Change from 2016

+0.1pp

15 to 19

2021 count

456

% of total

6.5%

Change from 2016

+0.1pp

20 to 24

2021 count

509

% of total

7.2%

Change from 2016

+1.3pp

25 to 29

2021 count

560

% of total

7.9%

Change from 2016

+1.4pp

30 to 34

2021 count

533

% of total

7.6%

Change from 2016

-0.7pp

35 to 39

2021 count

495

% of total

7.0%

Change from 2016

-0.9pp

40 to 44

2021 count

419

% of total

5.9%

Change from 2016

-0.6pp

45 to 49

2021 count

464

% of total

6.6%

Change from 2016

+0.7pp

50 to 54

2021 count

379

% of total

5.4%

Change from 2016

-0.9pp

55 to 59

2021 count

353

% of total

5.0%

Change from 2016

-1.2pp

60 to 64

2021 count

338

% of total

4.8%

Change from 2016

-2.4pp

65 to 69

2021 count

309

% of total

4.4%

Change from 2016

-1.5pp

70 to 74

2021 count

320

% of total

4.5%

Change from 2016

+1.8pp

75 to 79

2021 count

197

% of total

2.8%

Change from 2016

+1.6pp

80 to 84

2021 count

101

% of total

1.4%

Change from 2016

+0.5pp

85 and over

2021 count

84

% of total

1.2%

Change from 2016

+0.6pp

Data table

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

Five year age groups for Cambridge Park. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Penrith (C).
Five year age groups for Cambridge Park. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Penrith (C).
Category20212016Change
Count%Penrith (C)%Count%Penrith (C)%Countpp
0 to 45347.6%7.2%1467.2%7.4%+388+0.4pp
5 to 95307.5%7.2%1527.5%7.2%+3780.0pp
10 to 144947.0%6.8%1386.9%6.5%+356+0.1pp
15 to 194566.5%6.2%1286.4%6.6%+328+0.1pp
20 to 245097.2%6.8%1195.9%7.2%+390+1.3pp
25 to 295607.9%7.4%1306.5%7.7%+430+1.4pp
30 to 345337.6%7.7%1688.3%7.8%+365-0.7pp
35 to 394957.0%7.8%1607.9%7.1%+335-0.9pp
40 to 444195.9%6.8%1316.5%6.9%+288-0.6pp
45 to 494646.6%6.4%1195.9%6.4%+345+0.7pp
50 to 543795.4%5.9%1266.3%6.2%+253-0.9pp
55 to 593535.0%5.5%1246.2%6.1%+229-1.2pp
60 to 643384.8%5.2%1467.2%5.2%+192-2.4pp
65 to 693094.4%4.3%1185.9%4.5%+191-1.5pp
70 to 743204.5%3.7%542.7%2.9%+266+1.8pp
75 to 791972.8%2.3%241.2%1.9%+173+1.6pp
80 to 841011.4%1.4%180.9%1.2%+83+0.5pp
85 and over841.2%1.2%120.6%1.2%+72+0.6pp
Total7,054100.0%100.0%2,014100.0%100.0%+5,0400.0pp