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 Nambucca (A), accounting for 9.3% (1,894 people). This share was higher than Regional NSW (6.9%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 328 people and 1.2 percentage points.

Section overview

Age structure - Five year age groups

Nambucca (A) - Total persons (Usual residence)

This table summarises five year age groups for Nambucca (A) in 2021 for persons, with comparison against Regional NSW 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

+59

0.0pp

5 to 9

-106

-0.9pp

10 to 14

+93

+0.1pp

15 to 19

+59

0.0pp

20 to 24

-54

-0.5pp

25 to 29

+118

+0.4pp

30 to 34

+95

+0.2pp

35 to 39

+172

+0.6pp

40 to 44

-64

-0.6pp

45 to 49

+81

+0.1pp

50 to 54

-203

-1.4pp

55 to 59

-84

-0.9pp

60 to 64

+223

+0.6pp

65 to 69

+138

+0.2pp

70 to 74

+328

+1.2pp

75 to 79

+240

+0.8pp

80 to 84

+127

+0.4pp

85 and over

+17

-0.2pp

Data table

Five year age groups for Nambucca (A). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.

Five year age groups for Nambucca (A). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
Five year age groups for Nambucca (A). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
Category20212016Change
Count%Regional NSW%Count%Regional NSW%Countpp
0 to 49804.8%5.5%9214.8%5.8%+590.0pp
5 to 91,0255.0%6.1%1,1315.9%6.4%-106-0.9pp
10 to 141,2105.9%6.3%1,1175.8%6.1%+93+0.1pp
15 to 191,0725.3%5.7%1,0135.3%6.0%+590.0pp
20 to 246993.4%5.4%7533.9%5.6%-54-0.5pp
25 to 298374.1%5.7%7193.7%5.5%+118+0.4pp
30 to 348364.1%5.9%7413.9%5.5%+95+0.2pp
35 to 399204.5%5.9%7483.9%5.4%+172+0.6pp
40 to 449204.5%5.6%9845.1%6.1%-64-0.6pp
45 to 491,1185.5%6.1%1,0375.4%6.4%+81+0.1pp
50 to 541,1975.9%6.2%1,4007.3%6.8%-203-1.4pp
55 to 591,5667.7%6.6%1,6508.6%7.1%-84-0.9pp
60 to 641,8949.3%6.9%1,6718.7%6.7%+223+0.6pp
65 to 691,8198.9%6.4%1,6818.7%6.4%+138+0.2pp
70 to 741,6618.1%5.9%1,3336.9%5.0%+328+1.2pp
75 to 791,1925.8%4.3%9525.0%3.7%+240+0.8pp
80 to 847623.7%2.9%6353.3%2.6%+127+0.4pp
85 and over7213.5%2.8%7043.7%2.7%+17-0.2pp
Total20,407100.0%100.0%19,212100.0%100.0%+1,1950.0pp