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, 60 to 64 year olds was the largest age group among residents in Sarina, accounting for 7.6% (425 people). This share was higher than Mackay (R) (6.3%). Since 2016, the biggest change was in 55 to 59 year olds, which decreased by 71 people and 1.5 percentage points.

Section overview

Age structure - Five year age groups

Sarina - Total persons (Usual residence)

This table summarises five year age groups for Sarina 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 Sarina, with comparison markers for Mackay (R).

Sarina
Mackay (R)

0 to 4

2021 count

354

% of total

6.3%

Change from 2016

0.0pp

5 to 9

2021 count

363

% of total

6.5%

Change from 2016

-0.7pp

10 to 14

2021 count

387

% of total

6.9%

Change from 2016

-0.4pp

15 to 19

2021 count

382

% of total

6.8%

Change from 2016

+0.2pp

20 to 24

2021 count

306

% of total

5.4%

Change from 2016

-0.2pp

25 to 29

2021 count

320

% of total

5.7%

Change from 2016

+0.2pp

30 to 34

2021 count

286

% of total

5.1%

Change from 2016

-1.1pp

35 to 39

2021 count

348

% of total

6.2%

Change from 2016

+0.5pp

40 to 44

2021 count

340

% of total

6.1%

Change from 2016

-0.7pp

45 to 49

2021 count

389

% of total

6.9%

Change from 2016

+0.7pp

50 to 54

2021 count

361

% of total

6.4%

Change from 2016

-0.3pp

55 to 59

2021 count

368

% of total

6.5%

Change from 2016

-1.5pp

60 to 64

2021 count

425

% of total

7.6%

Change from 2016

+0.9pp

65 to 69

2021 count

344

% of total

6.1%

Change from 2016

+0.8pp

70 to 74

2021 count

261

% of total

4.6%

Change from 2016

+0.5pp

75 to 79

2021 count

186

% of total

3.3%

Change from 2016

+0.6pp

80 to 84

2021 count

99

% of total

1.8%

Change from 2016

-0.3pp

85 and over

2021 count

102

% of total

1.8%

Change from 2016

+0.2pp

Data table

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

Five year age groups for Sarina. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mackay (R).
Five year age groups for Sarina. 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 43546.3%6.2%3496.3%6.7%+50.0pp
5 to 93636.5%6.8%3957.2%7.1%-32-0.7pp
10 to 143876.9%7.2%4047.3%6.8%-17-0.4pp
15 to 193826.8%6.1%3646.6%6.3%+18+0.2pp
20 to 243065.4%5.7%3115.6%5.8%-5-0.2pp
25 to 293205.7%6.3%3015.5%6.5%+19+0.2pp
30 to 342865.1%6.5%3416.2%7.0%-55-1.1pp
35 to 393486.2%7.0%3145.7%6.4%+34+0.5pp
40 to 443406.1%6.3%3776.8%6.9%-37-0.7pp
45 to 493896.9%6.6%3406.2%7.4%+49+0.7pp
50 to 543616.4%6.9%3726.7%7.4%-11-0.3pp
55 to 593686.5%6.9%4398.0%6.9%-71-1.5pp
60 to 644257.6%6.3%3716.7%5.6%+54+0.9pp
65 to 693446.1%5.1%2935.3%4.5%+51+0.8pp
70 to 742614.6%4.0%2244.1%3.3%+37+0.5pp
75 to 791863.3%2.8%1492.7%2.3%+37+0.6pp
80 to 84991.8%1.7%1152.1%1.6%-16-0.3pp
85 and over1021.8%1.6%871.6%1.4%+15+0.2pp
Total5,619100.0%100.0%5,522100.0%100.0%+970.0pp