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, 5 to 9 year olds was the largest age group among residents in Wilcannia, accounting for 8.8% (65 people). This share was higher than Central Darling (A) (6.7%). Since 2016, the biggest change was in 30 to 34 year olds, which increased by 29 people and 3.9 percentage points.

Section overview

Age structure - Five year age groups

Wilcannia - Total persons (Usual residence)

This table summarises five year age groups for Wilcannia in 2021 for persons, with comparison against Central Darling (A) and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Wilcannia, with comparison markers for Central Darling (A).

Wilcannia
Central Darling (A)

0 to 4

2021 count

55

% of total

7.5%

Change from 2016

+1.8pp

5 to 9

2021 count

65

% of total

8.8%

Change from 2016

+2.8pp

10 to 14

2021 count

44

% of total

6.0%

Change from 2016

-0.6pp

15 to 19

2021 count

50

% of total

6.8%

Change from 2016

+1.4pp

20 to 24

2021 count

54

% of total

7.3%

Change from 2016

+2.7pp

25 to 29

2021 count

53

% of total

7.2%

Change from 2016

+0.5pp

30 to 34

2021 count

63

% of total

8.6%

Change from 2016

+3.9pp

35 to 39

2021 count

42

% of total

5.7%

Change from 2016

+1.2pp

40 to 44

2021 count

30

% of total

4.1%

Change from 2016

-1.9pp

45 to 49

2021 count

50

% of total

6.8%

Change from 2016

+1.4pp

50 to 54

2021 count

46

% of total

6.3%

Change from 2016

-2.9pp

55 to 59

2021 count

48

% of total

6.5%

Change from 2016

-3.4pp

60 to 64

2021 count

41

% of total

5.6%

Change from 2016

-2.2pp

65 to 69

2021 count

35

% of total

4.8%

Change from 2016

-3.8pp

70 to 74

2021 count

31

% of total

4.2%

Change from 2016

-0.7pp

75 to 79

2021 count

12

% of total

1.6%

Change from 2016

-3.7pp

80 to 84

2021 count

5

% of total

0.7%

Change from 2016

-0.7pp

85 and over

2021 count

7

% of total

1.0%

Change from 2016

-0.3pp

Data table

Five year age groups for Wilcannia. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Central Darling (A).

Five year age groups for Wilcannia. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Central Darling (A).
Five year age groups for Wilcannia. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Central Darling (A).
Category20212016Change
Count%Central Darling (A)%Count%Central Darling (A)%Countpp
0 to 4557.5%5.0%415.7%7.4%+14+1.8pp
5 to 9658.8%6.7%436.0%6.2%+22+2.8pp
10 to 14446.0%5.7%476.6%5.1%-3-0.6pp
15 to 19506.8%5.7%395.4%6.5%+11+1.4pp
20 to 24547.3%5.4%334.6%6.1%+21+2.7pp
25 to 29537.2%6.8%486.7%6.7%+5+0.5pp
30 to 34638.6%6.1%344.7%7.9%+29+3.9pp
35 to 39425.7%5.3%324.5%5.6%+10+1.2pp
40 to 44304.1%5.4%436.0%5.5%-13-1.9pp
45 to 49506.8%6.6%395.4%6.4%+11+1.4pp
50 to 54466.3%6.5%669.2%7.0%-20-2.9pp
55 to 59486.5%7.2%719.9%7.3%-23-3.4pp
60 to 64415.6%7.2%567.8%7.0%-15-2.2pp
65 to 69354.8%7.2%628.6%6.1%-27-3.8pp
70 to 74314.2%6.6%354.9%4.7%-4-0.7pp
75 to 79121.6%4.4%385.3%2.2%-26-3.7pp
80 to 8450.7%2.0%101.4%1.4%-5-0.7pp
85 and over71.0%1.1%91.3%1.0%-2-0.3pp
Total735100.0%100.0%717100.0%100.0%+180.0pp