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 Telopea, accounting for 8.2% (439 people). This share was lower than Parramatta (C) (10.2%). Since 2016, the biggest change was in 30 to 34 year olds, which decreased by 95 people and 2 percentage points.

Section overview

Age structure - Five year age groups

Telopea - Total persons (Usual residence)

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

Age structure - Five year age groups snapshot

2021 distribution by category for Telopea, with comparison markers for Parramatta (C).

Telopea
Parramatta (C)

0 to 4

2021 count

303

% of total

5.7%

Change from 2016

-1.4pp

5 to 9

2021 count

348

% of total

6.5%

Change from 2016

-0.1pp

10 to 14

2021 count

322

% of total

6.0%

Change from 2016

+1.6pp

15 to 19

2021 count

247

% of total

4.6%

Change from 2016

-0.5pp

20 to 24

2021 count

250

% of total

4.7%

Change from 2016

-0.3pp

25 to 29

2021 count

291

% of total

5.4%

Change from 2016

-1.5pp

30 to 34

2021 count

384

% of total

7.2%

Change from 2016

-2.0pp

35 to 39

2021 count

439

% of total

8.2%

Change from 2016

+0.4pp

40 to 44

2021 count

400

% of total

7.5%

Change from 2016

+0.1pp

45 to 49

2021 count

404

% of total

7.5%

Change from 2016

+0.5pp

50 to 54

2021 count

358

% of total

6.7%

Change from 2016

-0.8pp

55 to 59

2021 count

388

% of total

7.2%

Change from 2016

+1.0pp

60 to 64

2021 count

343

% of total

6.4%

Change from 2016

+0.4pp

65 to 69

2021 count

292

% of total

5.5%

Change from 2016

+1.7pp

70 to 74

2021 count

200

% of total

3.7%

Change from 2016

+0.7pp

75 to 79

2021 count

132

% of total

2.5%

Change from 2016

-0.6pp

80 to 84

2021 count

125

% of total

2.3%

Change from 2016

-0.4pp

85 and over

2021 count

134

% of total

2.5%

Change from 2016

+0.9pp

Data table

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

Five year age groups for Telopea. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Parramatta (C).
Five year age groups for Telopea. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Parramatta (C).
Category20212016Change
Count%Parramatta (C)%Count%Parramatta (C)%Countpp
0 to 43035.7%6.2%3717.1%7.3%-68-1.4pp
5 to 93486.5%6.5%3446.6%6.2%+4-0.1pp
10 to 143226.0%5.4%2284.4%4.9%+94+1.6pp
15 to 192474.6%4.5%2665.1%5.1%-19-0.5pp
20 to 242504.7%6.6%2605.0%6.6%-10-0.3pp
25 to 292915.4%9.1%3626.9%9.2%-71-1.5pp
30 to 343847.2%10.3%4799.2%11.1%-95-2.0pp
35 to 394398.2%10.2%4067.8%8.8%+33+0.4pp
40 to 444007.5%7.5%3887.4%7.0%+12+0.1pp
45 to 494047.5%6.1%3667.0%6.0%+38+0.5pp
50 to 543586.7%5.3%3917.5%5.8%-33-0.8pp
55 to 593887.2%5.0%3256.2%5.3%+63+1.0pp
60 to 643436.4%4.6%3106.0%4.6%+33+0.4pp
65 to 692925.5%3.9%2003.8%3.8%+92+1.7pp
70 to 742003.7%3.1%1563.0%2.9%+44+0.7pp
75 to 791322.5%2.3%1603.1%2.2%-28-0.6pp
80 to 841252.3%1.6%1392.7%1.6%-14-0.4pp
85 and over1342.5%1.6%831.6%1.7%+51+0.9pp
Total5,356100.0%100.0%5,214100.0%100.0%+1420.0pp