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, 0 to 4 year olds was the largest age group among residents in Greenmount (Mackay - Qld), accounting for 8.4% (41 people). This share was higher than Mackay (R) (6.2%). Since 2016, the biggest change was in 50 to 54 year olds, which decreased by 20 people and 4.4 percentage points.

Section overview

Age structure - Five year age groups

Greenmount (Mackay - Qld) - Total persons (Usual residence)

This table summarises five year age groups for Greenmount (Mackay - Qld) in 2021 for persons, with comparison against Mackay (R) and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Greenmount (Mackay - Qld), with comparison markers for Mackay (R).

Greenmount (Mackay - Qld)
Mackay (R)

0 to 4

2021 count

41

% of total

8.4%

Change from 2016

+2.9pp

5 to 9

2021 count

37

% of total

7.6%

Change from 2016

-0.2pp

10 to 14

2021 count

31

% of total

6.4%

Change from 2016

+1.5pp

15 to 19

2021 count

30

% of total

6.1%

Change from 2016

-1.3pp

20 to 24

2021 count

17

% of total

3.5%

Change from 2016

-1.6pp

25 to 29

2021 count

31

% of total

6.4%

Change from 2016

+1.1pp

30 to 34

2021 count

36

% of total

7.4%

Change from 2016

+3.4pp

35 to 39

2021 count

26

% of total

5.3%

Change from 2016

+0.6pp

40 to 44

2021 count

20

% of total

4.1%

Change from 2016

-3.3pp

45 to 49

2021 count

33

% of total

6.8%

Change from 2016

-0.4pp

50 to 54

2021 count

36

% of total

7.4%

Change from 2016

-4.4pp

55 to 59

2021 count

40

% of total

8.2%

Change from 2016

0.0pp

60 to 64

2021 count

40

% of total

8.2%

Change from 2016

+2.7pp

65 to 69

2021 count

25

% of total

5.1%

Change from 2016

-0.2pp

70 to 74

2021 count

22

% of total

4.5%

Change from 2016

+1.3pp

75 to 79

2021 count

17

% of total

3.5%

Change from 2016

+2.9pp

80 to 84

2021 count

3

% of total

0.6%

Change from 2016

-0.2pp

85 and over

2021 count

3

% of total

0.6%

Change from 2016

+0.6pp

Data table

Five year age groups for Greenmount (Mackay - Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mackay (R).

Five year age groups for Greenmount (Mackay - Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mackay (R).
Five year age groups for Greenmount (Mackay - Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mackay (R).
Category20212016Change
Count%Mackay (R)%Count%Mackay (R)%Countpp
0 to 4418.4%6.2%265.5%6.7%+15+2.9pp
5 to 9377.6%6.8%377.8%7.1%0-0.2pp
10 to 14316.4%7.2%234.9%6.8%+8+1.5pp
15 to 19306.1%6.1%357.4%6.3%-5-1.3pp
20 to 24173.5%5.7%245.1%5.8%-7-1.6pp
25 to 29316.4%6.3%255.3%6.5%+6+1.1pp
30 to 34367.4%6.5%194.0%7.0%+17+3.4pp
35 to 39265.3%7.0%224.7%6.4%+4+0.6pp
40 to 44204.1%6.3%357.4%6.9%-15-3.3pp
45 to 49336.8%6.6%347.2%7.4%-1-0.4pp
50 to 54367.4%6.9%5611.8%7.4%-20-4.4pp
55 to 59408.2%6.9%398.2%6.9%+10.0pp
60 to 64408.2%6.3%265.5%5.6%+14+2.7pp
65 to 69255.1%5.1%255.3%4.5%0-0.2pp
70 to 74224.5%4.0%153.2%3.3%+7+1.3pp
75 to 79173.5%2.8%30.6%2.3%+14+2.9pp
80 to 8430.6%1.7%40.8%1.6%-1-0.2pp
85 and over30.6%1.6%00.0%1.4%+3+0.6pp
Total488100.0%100.0%473100.0%100.0%+150.0pp