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, 35 to 39 year olds was the largest age group among residents in Werrington County, accounting for 8% (295 people). This share was higher than Penrith (C) (7.8%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 154 people and 1.7 percentage points.

Section overview

Age structure - Five year age groups

Werrington County - Total persons (Usual residence)

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

Werrington County
Penrith (C)

0 to 4

2021 count

241

% of total

6.5%

Change from 2016

-0.7pp

5 to 9

2021 count

259

% of total

7.0%

Change from 2016

+0.2pp

10 to 14

2021 count

234

% of total

6.3%

Change from 2016

+0.5pp

15 to 19

2021 count

193

% of total

5.2%

Change from 2016

-1.5pp

20 to 24

2021 count

229

% of total

6.2%

Change from 2016

+1.3pp

25 to 29

2021 count

250

% of total

6.8%

Change from 2016

-0.6pp

30 to 34

2021 count

279

% of total

7.5%

Change from 2016

+0.4pp

35 to 39

2021 count

295

% of total

8.0%

Change from 2016

+1.7pp

40 to 44

2021 count

256

% of total

6.9%

Change from 2016

+1.4pp

45 to 49

2021 count

218

% of total

5.9%

Change from 2016

-0.5pp

50 to 54

2021 count

203

% of total

5.5%

Change from 2016

-0.1pp

55 to 59

2021 count

189

% of total

5.1%

Change from 2016

-0.7pp

60 to 64

2021 count

228

% of total

6.2%

Change from 2016

-0.1pp

65 to 69

2021 count

234

% of total

6.3%

Change from 2016

+0.5pp

70 to 74

2021 count

200

% of total

5.4%

Change from 2016

+1.0pp

75 to 79

2021 count

93

% of total

2.5%

Change from 2016

-0.7pp

80 to 84

2021 count

30

% of total

0.8%

Change from 2016

-1.6pp

85 and over

2021 count

45

% of total

1.2%

Change from 2016

0.0pp

Data table

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

Five year age groups for Werrington County. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Penrith (C).
Five year age groups for Werrington County. 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 42416.5%7.2%1627.2%7.4%+79-0.7pp
5 to 92597.0%7.2%1536.8%7.2%+106+0.2pp
10 to 142346.3%6.8%1305.8%6.5%+104+0.5pp
15 to 191935.2%6.2%1506.7%6.6%+43-1.5pp
20 to 242296.2%6.8%1094.9%7.2%+120+1.3pp
25 to 292506.8%7.4%1657.4%7.7%+85-0.6pp
30 to 342797.5%7.7%1607.1%7.8%+119+0.4pp
35 to 392958.0%7.8%1416.3%7.1%+154+1.7pp
40 to 442566.9%6.8%1235.5%6.9%+133+1.4pp
45 to 492185.9%6.4%1446.4%6.4%+74-0.5pp
50 to 542035.5%5.9%1265.6%6.2%+77-0.1pp
55 to 591895.1%5.5%1295.8%6.1%+60-0.7pp
60 to 642286.2%5.2%1406.3%5.2%+88-0.1pp
65 to 692346.3%4.3%1295.8%4.5%+105+0.5pp
70 to 742005.4%3.7%994.4%2.9%+101+1.0pp
75 to 79932.5%2.3%713.2%1.9%+22-0.7pp
80 to 84300.8%1.4%532.4%1.2%-23-1.6pp
85 and over451.2%1.2%271.2%1.2%+180.0pp
Total3,698100.0%100.0%2,240100.0%100.0%+1,4580.0pp