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, 65 to 69 year olds was the largest age group among residents in Cootamundra-Gundagai Regional, accounting for 7.9% (905 people). This share was higher than Regional NSW (6.4%).

Section overview

Age structure - Five year age groups

Cootamundra-Gundagai Regional - Total persons (Usual residence)

This table summarises five year age groups for Cootamundra-Gundagai Regional in 2021 for persons, with comparison against Regional NSW and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Cootamundra-Gundagai Regional, with comparison markers for Regional NSW.

Cootamundra-Gundagai Regional
Regional NSW

0 to 4

2021 count

603

% of total

5.3%

Change from 2016

-

5 to 9

2021 count

661

% of total

5.8%

Change from 2016

-

10 to 14

2021 count

714

% of total

6.3%

Change from 2016

-

15 to 19

2021 count

635

% of total

5.6%

Change from 2016

-

20 to 24

2021 count

494

% of total

4.3%

Change from 2016

-

25 to 29

2021 count

509

% of total

4.5%

Change from 2016

-

30 to 34

2021 count

505

% of total

4.4%

Change from 2016

-

35 to 39

2021 count

541

% of total

4.7%

Change from 2016

-

40 to 44

2021 count

556

% of total

4.9%

Change from 2016

-

45 to 49

2021 count

659

% of total

5.8%

Change from 2016

-

50 to 54

2021 count

651

% of total

5.7%

Change from 2016

-

55 to 59

2021 count

781

% of total

6.8%

Change from 2016

-

60 to 64

2021 count

891

% of total

7.8%

Change from 2016

-

65 to 69

2021 count

905

% of total

7.9%

Change from 2016

-

70 to 74

2021 count

856

% of total

7.5%

Change from 2016

-

75 to 79

2021 count

591

% of total

5.2%

Change from 2016

-

80 to 84

2021 count

483

% of total

4.2%

Change from 2016

-

85 and over

2021 count

381

% of total

3.3%

Change from 2016

-

Data table

Five year age groups for Cootamundra-Gundagai Regional. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.

Five year age groups for Cootamundra-Gundagai Regional. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
Five year age groups for Cootamundra-Gundagai Regional. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
Category20212016Change
Count%Regional NSW%Count%Regional NSW%Countpp
0 to 46035.3%5.5%--5.8%--
5 to 96615.8%6.1%--6.4%--
10 to 147146.3%6.3%--6.1%--
15 to 196355.6%5.7%--6.0%--
20 to 244944.3%5.4%--5.6%--
25 to 295094.5%5.7%--5.5%--
30 to 345054.4%5.9%--5.5%--
35 to 395414.7%5.9%--5.4%--
40 to 445564.9%5.6%--6.1%--
45 to 496595.8%6.1%--6.4%--
50 to 546515.7%6.2%--6.8%--
55 to 597816.8%6.6%--7.1%--
60 to 648917.8%6.9%--6.7%--
65 to 699057.9%6.4%--6.4%--
70 to 748567.5%5.9%--5.0%--
75 to 795915.2%4.3%--3.7%--
80 to 844834.2%2.9%--2.6%--
85 and over3813.3%2.8%--2.7%--
Total11,403100.0%100.0%--100.0%--