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 Gawler (T), accounting for 6.8% (1,692 people). This share was higher than Greater Adelaide (5.9%). Since 2016, the biggest change was in 60 to 64 year olds, which increased by 314 people and 0.8 percentage points.

Section overview

Age structure - Five year age groups

Gawler (T) - Total persons (Usual residence)

This table summarises five year age groups for Gawler (T) in 2021 for persons, with comparison against Greater Adelaide and change since 2016.

Age structure - Five year age groups change

Absolute change in category counts between 2016 and 2021.

2016
2021

0 to 4

+19

-0.4pp

5 to 9

+101

-0.1pp

10 to 14

+189

+0.3pp

15 to 19

-69

-0.8pp

20 to 24

-3

-0.5pp

25 to 29

+277

+0.6pp

30 to 34

+39

-0.3pp

35 to 39

+286

+0.7pp

40 to 44

+59

-0.2pp

45 to 49

-119

-1.0pp

50 to 54

+1

-0.5pp

55 to 59

+42

-0.4pp

60 to 64

+314

+0.8pp

65 to 69

+175

+0.3pp

70 to 74

+174

+0.4pp

75 to 79

+131

+0.2pp

80 to 84

+119

+0.3pp

85 and over

+159

+0.4pp

Data table

Five year age groups for Gawler (T). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.

Five year age groups for Gawler (T). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.
Five year age groups for Gawler (T). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.
Category20212016Change
Count%Greater Adelaide%Count%Greater Adelaide%Countpp
0 to 41,3505.4%5.4%1,3315.8%5.9%+19-0.4pp
5 to 91,4855.9%5.9%1,3846.0%6.0%+101-0.1pp
10 to 141,5426.2%5.9%1,3535.9%5.6%+189+0.3pp
15 to 191,4115.6%5.6%1,4806.4%6.1%-69-0.8pp
20 to 241,4926.0%6.6%1,4956.5%6.9%-3-0.5pp
25 to 291,6336.5%7.0%1,3565.9%6.8%+277+0.6pp
30 to 341,4916.0%7.0%1,4526.3%7.0%+39-0.3pp
35 to 391,4865.9%7.0%1,2005.2%6.4%+286+0.7pp
40 to 441,3495.4%6.3%1,2905.6%6.5%+59-0.2pp
45 to 491,4135.7%6.2%1,5326.7%6.8%-119-1.0pp
50 to 541,5886.4%6.4%1,5876.9%6.6%+1-0.5pp
55 to 591,6706.7%6.2%1,6287.1%6.4%+42-0.4pp
60 to 641,6926.8%5.9%1,3786.0%5.7%+314+0.8pp
65 to 691,4155.7%5.3%1,2405.4%5.3%+175+0.3pp
70 to 741,2455.0%4.9%1,0714.6%4.0%+174+0.4pp
75 to 791,0334.1%3.5%9023.9%3.0%+131+0.2pp
80 to 848133.3%2.4%6943.0%2.3%+119+0.3pp
85 and over8303.3%2.6%6712.9%2.6%+159+0.4pp
Total24,988100.0%100.0%23,034100.0%100.0%+1,9540.0pp