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, 55 to 59 year olds was the largest age group among residents in Rosehill (Qld), accounting for 11.9% (16 people). This share was higher than Southern Downs (R) (7.1%). Since 2016, the biggest change was in 55 to 59 year olds, which increased by 16 people and 11.9 percentage points.

Section overview

Age structure - Five year age groups

Rosehill (Qld) - Total persons (Usual residence)

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

Age structure - Five year age groups snapshot

2021 distribution by category for Rosehill (Qld), with comparison markers for Southern Downs (R).

Rosehill (Qld)
Southern Downs (R)

0 to 4

2021 count

0

% of total

0.0%

Change from 2016

-5.5pp

5 to 9

2021 count

10

% of total

7.5%

Change from 2016

-1.6pp

10 to 14

2021 count

8

% of total

6.0%

Change from 2016

+0.5pp

15 to 19

2021 count

11

% of total

8.2%

Change from 2016

+8.2pp

20 to 24

2021 count

0

% of total

0.0%

Change from 2016

-5.5pp

25 to 29

2021 count

0

% of total

0.0%

Change from 2016

-9.1pp

30 to 34

2021 count

4

% of total

3.0%

Change from 2016

+3.0pp

35 to 39

2021 count

0

% of total

0.0%

Change from 2016

-5.5pp

40 to 44

2021 count

5

% of total

3.7%

Change from 2016

-1.8pp

45 to 49

2021 count

3

% of total

2.2%

Change from 2016

+2.2pp

50 to 54

2021 count

9

% of total

6.7%

Change from 2016

+6.7pp

55 to 59

2021 count

16

% of total

11.9%

Change from 2016

+11.9pp

60 to 64

2021 count

9

% of total

6.7%

Change from 2016

+6.7pp

65 to 69

2021 count

10

% of total

7.5%

Change from 2016

+7.5pp

70 to 74

2021 count

8

% of total

6.0%

Change from 2016

+6.0pp

75 to 79

2021 count

7

% of total

5.2%

Change from 2016

-0.3pp

80 to 84

2021 count

3

% of total

2.2%

Change from 2016

+2.2pp

85 and over

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

Data table

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

Five year age groups for Rosehill (Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Southern Downs (R).
Five year age groups for Rosehill (Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Southern Downs (R).
Category20212016Change
Count%Southern Downs (R)%Count%Southern Downs (R)%Countpp
0 to 400.0%4.6%35.5%5.7%-3-5.5pp
5 to 9107.5%5.8%59.1%6.6%+5-1.6pp
10 to 1486.0%6.8%35.5%6.6%+5+0.5pp
15 to 19118.2%5.7%00.0%6.1%+11+8.2pp
20 to 2400.0%4.4%35.5%4.8%-3-5.5pp
25 to 2900.0%4.7%59.1%4.5%-5-9.1pp
30 to 3443.0%4.8%00.0%4.5%+4+3.0pp
35 to 3900.0%4.7%35.5%4.8%-3-5.5pp
40 to 4453.7%5.0%35.5%5.6%+2-1.8pp
45 to 4932.2%5.8%00.0%6.3%+3+2.2pp
50 to 5496.7%6.5%00.0%6.7%+9+6.7pp
55 to 591611.9%7.1%00.0%7.4%+16+11.9pp
60 to 6496.7%7.8%00.0%7.4%+9+6.7pp
65 to 69107.5%7.8%00.0%7.5%+10+7.5pp
70 to 7486.0%7.3%00.0%5.9%+8+6.0pp
75 to 7975.2%5.1%35.5%4.2%+4-0.3pp
80 to 8432.2%3.3%00.0%2.8%+3+2.2pp
85 and over00.0%2.8%00.0%2.6%00.0pp
Total134100.0%100.0%55100.0%100.0%+790.0pp