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, 30 to 34 year olds was the largest age group among residents in Gold Coast (C), accounting for 7% (43,758 people). This share was higher than Regional Qld (6.3%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 7,723 people and 0.8 percentage points.

Section overview

Age structure - Five year age groups

Gold Coast (C) - Total persons (Usual residence)

This table summarises five year age groups for Gold Coast (C) in 2021 for persons, with comparison against Regional Qld 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

+510

-0.5pp

5 to 9

+2,676

-0.3pp

10 to 14

+5,883

+0.3pp

15 to 19

+2,216

-0.3pp

20 to 24

+2,053

-0.4pp

25 to 29

+4,649

0.0pp

30 to 34

+5,357

+0.1pp

35 to 39

+6,282

+0.3pp

40 to 44

+2,098

-0.5pp

45 to 49

+3,978

-0.1pp

50 to 54

+4,961

+0.1pp

55 to 59

+3,935

-0.1pp

60 to 64

+5,155

+0.3pp

65 to 69

+1,591

-0.3pp

70 to 74

+7,723

+0.8pp

75 to 79

+5,809

+0.6pp

80 to 84

+3,295

+0.3pp

85 and over

+1,146

-0.1pp

Data table

Five year age groups for Gold Coast (C). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Qld.

Five year age groups for Gold Coast (C). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Qld.
Five year age groups for Gold Coast (C). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Qld.
Category20212016Change
Count%Regional Qld%Count%Regional Qld%Countpp
0 to 433,4865.4%5.4%32,9765.9%6.1%+510-0.5pp
5 to 937,5406.0%6.2%34,8646.3%6.7%+2,676-0.3pp
10 to 1438,9026.2%6.7%33,0195.9%6.5%+5,883+0.3pp
15 to 1936,3635.8%6.0%34,1476.1%6.2%+2,216-0.3pp
20 to 2439,3246.3%5.7%37,2716.7%6.0%+2,053-0.4pp
25 to 2942,6666.8%6.2%38,0176.8%6.1%+4,6490.0pp
30 to 3443,7587.0%6.3%38,4016.9%6.3%+5,357+0.1pp
35 to 3943,4577.0%6.4%37,1756.7%6.1%+6,282+0.3pp
40 to 4441,4966.6%6.1%39,3987.1%6.7%+2,098-0.5pp
45 to 4942,8986.9%6.5%38,9207.0%6.9%+3,978-0.1pp
50 to 5441,0216.6%6.6%36,0606.5%6.8%+4,961+0.1pp
55 to 5937,8166.0%6.6%33,8816.1%6.6%+3,935-0.1pp
60 to 6435,3635.7%6.4%30,2085.4%6.0%+5,155+0.3pp
65 to 6931,5935.1%5.7%30,0025.4%5.7%+1,591-0.3pp
70 to 7430,6394.9%5.2%22,9164.1%4.3%+7,723+0.8pp
75 to 7922,0123.5%3.7%16,2032.9%3.0%+5,809+0.6pp
80 to 8413,9382.2%2.3%10,6431.9%2.0%+3,295+0.3pp
85 and over12,8002.0%2.1%11,6542.1%1.9%+1,146-0.1pp
Total625,087100.0%100.0%555,721100.0%100.0%+69,3660.0pp