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 Buckland Park, accounting for 15.2% (15 people). This share was higher than Playford (C) (5.8%). Since 2016, the biggest change was in 50 to 54 year olds, which decreased by 22 people and 12.7 percentage points.

Section overview

Age structure - Five year age groups

Buckland Park - Total persons (Usual residence)

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

Age structure - Five year age groups snapshot

2021 distribution by category for Buckland Park, with comparison markers for Playford (C).

Buckland Park
Playford (C)

0 to 4

2021 count

4

% of total

4.0%

Change from 2016

-2.9pp

5 to 9

2021 count

3

% of total

3.0%

Change from 2016

-0.5pp

10 to 14

2021 count

5

% of total

5.1%

Change from 2016

+0.5pp

15 to 19

2021 count

0

% of total

0.0%

Change from 2016

-3.5pp

20 to 24

2021 count

0

% of total

0.0%

Change from 2016

-7.5pp

25 to 29

2021 count

7

% of total

7.1%

Change from 2016

-3.9pp

30 to 34

2021 count

5

% of total

5.1%

Change from 2016

+1.6pp

35 to 39

2021 count

5

% of total

5.1%

Change from 2016

-4.1pp

40 to 44

2021 count

3

% of total

3.0%

Change from 2016

-0.5pp

45 to 49

2021 count

14

% of total

14.1%

Change from 2016

+8.9pp

50 to 54

2021 count

0

% of total

0.0%

Change from 2016

-12.7pp

55 to 59

2021 count

15

% of total

15.2%

Change from 2016

+4.8pp

60 to 64

2021 count

7

% of total

7.1%

Change from 2016

+2.5pp

65 to 69

2021 count

9

% of total

9.1%

Change from 2016

+3.3pp

70 to 74

2021 count

13

% of total

13.1%

Change from 2016

+11.4pp

75 to 79

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

80 to 84

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

85 and over

2021 count

0

% of total

0.0%

Change from 2016

0.0pp

Data table

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

Five year age groups for Buckland Park. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Playford (C).
Five year age groups for Buckland Park. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Playford (C).
Category20212016Change
Count%Playford (C)%Count%Playford (C)%Countpp
0 to 444.0%7.5%126.9%8.6%-8-2.9pp
5 to 933.0%8.0%63.5%7.9%-3-0.5pp
10 to 1455.1%7.4%84.6%6.6%-3+0.5pp
15 to 1900.0%6.2%63.5%6.7%-6-3.5pp
20 to 2400.0%7.0%137.5%7.7%-13-7.5pp
25 to 2977.1%8.2%1911.0%7.9%-12-3.9pp
30 to 3455.1%7.7%63.5%7.4%-1+1.6pp
35 to 3955.1%7.1%169.2%6.1%-11-4.1pp
40 to 4433.0%5.7%63.5%5.9%-3-0.5pp
45 to 491414.1%5.7%95.2%6.2%+5+8.9pp
50 to 5400.0%5.7%2212.7%6.5%-22-12.7pp
55 to 591515.2%5.8%1810.4%5.8%-3+4.8pp
60 to 6477.1%5.1%84.6%4.5%-1+2.5pp
65 to 6999.1%4.0%105.8%3.9%-1+3.3pp
70 to 741313.1%3.3%31.7%2.8%+10+11.4pp
75 to 7900.0%2.2%00.0%2.3%00.0pp
80 to 8400.0%1.7%00.0%1.7%00.0pp
85 and over00.0%1.6%00.0%1.5%00.0pp
Total99100.0%100.0%173100.0%100.0%-740.0pp