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, 30 to 34 year olds was the largest age group among residents in Berkshire Park, accounting for 12.1% (260 people). This share was higher than Penrith (C) (7.7%). Since 2016, the biggest change was in 20 to 24 year olds, which decreased by 76 people and 3.6 percentage points.

Section overview

Age structure - Five year age groups

Berkshire Park - Total persons (Usual residence)

This table summarises five year age groups for Berkshire 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 Berkshire Park, with comparison markers for Penrith (C).

Berkshire Park
Penrith (C)

0 to 4

2021 count

45

% of total

2.1%

Change from 2016

-2.3pp

5 to 9

2021 count

79

% of total

3.7%

Change from 2016

-0.5pp

10 to 14

2021 count

58

% of total

2.7%

Change from 2016

-0.3pp

15 to 19

2021 count

79

% of total

3.7%

Change from 2016

-1.7pp

20 to 24

2021 count

169

% of total

7.9%

Change from 2016

-3.6pp

25 to 29

2021 count

252

% of total

11.7%

Change from 2016

-0.2pp

30 to 34

2021 count

260

% of total

12.1%

Change from 2016

+0.8pp

35 to 39

2021 count

257

% of total

12.0%

Change from 2016

+0.8pp

40 to 44

2021 count

215

% of total

10.0%

Change from 2016

+1.8pp

45 to 49

2021 count

162

% of total

7.5%

Change from 2016

+0.1pp

50 to 54

2021 count

137

% of total

6.4%

Change from 2016

-0.8pp

55 to 59

2021 count

124

% of total

5.8%

Change from 2016

+0.5pp

60 to 64

2021 count

112

% of total

5.2%

Change from 2016

+1.5pp

65 to 69

2021 count

85

% of total

4.0%

Change from 2016

+0.8pp

70 to 74

2021 count

52

% of total

2.4%

Change from 2016

+0.9pp

75 to 79

2021 count

34

% of total

1.6%

Change from 2016

0.0pp

80 to 84

2021 count

26

% of total

1.2%

Change from 2016

+0.7pp

85 and over

2021 count

6

% of total

0.3%

Change from 2016

-0.2pp

Data table

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

Five year age groups for Berkshire Park. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Penrith (C).
Five year age groups for Berkshire 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 4452.1%7.2%934.4%7.4%-48-2.3pp
5 to 9793.7%7.2%904.2%7.2%-11-0.5pp
10 to 14582.7%6.8%643.0%6.5%-6-0.3pp
15 to 19793.7%6.2%1165.4%6.6%-37-1.7pp
20 to 241697.9%6.8%24511.5%7.2%-76-3.6pp
25 to 2925211.7%7.4%25311.9%7.7%-1-0.2pp
30 to 3426012.1%7.7%24111.3%7.8%+19+0.8pp
35 to 3925712.0%7.8%24011.2%7.1%+17+0.8pp
40 to 4421510.0%6.8%1768.2%6.9%+39+1.8pp
45 to 491627.5%6.4%1577.4%6.4%+5+0.1pp
50 to 541376.4%5.9%1537.2%6.2%-16-0.8pp
55 to 591245.8%5.5%1145.3%6.1%+10+0.5pp
60 to 641125.2%5.2%803.7%5.2%+32+1.5pp
65 to 69854.0%4.3%693.2%4.5%+16+0.8pp
70 to 74522.4%3.7%311.5%2.9%+21+0.9pp
75 to 79341.6%2.3%341.6%1.9%00.0pp
80 to 84261.2%1.4%100.5%1.2%+16+0.7pp
85 and over60.3%1.2%110.5%1.2%-5-0.2pp
Total2,149100.0%100.0%2,134100.0%100.0%+150.0pp