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 Gilgandra (A), accounting for 7.9% (338 people). This share was higher than Regional NSW (6.9%). Since 2016, the biggest change was in 20 to 24 year olds, which decreased by 68 people and 1.7 percentage points.

Section overview

Age structure - Five year age groups

Gilgandra (A) - Total persons (Usual residence)

This table summarises five year age groups for Gilgandra (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

+17

+0.3pp

5 to 9

-23

-0.6pp

10 to 14

+43

+0.9pp

15 to 19

-17

-0.5pp

20 to 24

-68

-1.7pp

25 to 29

-10

-0.3pp

30 to 34

+32

+0.7pp

35 to 39

+17

+0.3pp

40 to 44

-7

-0.2pp

45 to 49

-15

-0.4pp

50 to 54

-5

-0.2pp

55 to 59

+3

0.0pp

60 to 64

+33

+0.7pp

65 to 69

+14

+0.3pp

70 to 74

+30

+0.6pp

75 to 79

-41

-1.1pp

80 to 84

+33

+0.8pp

85 and over

+1

0.0pp

Data table

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

Five year age groups for Gilgandra (A). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
Five year age groups for Gilgandra (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 42646.1%5.5%2475.8%5.8%+17+0.3pp
5 to 92746.4%6.1%2977.0%6.4%-23-0.6pp
10 to 142936.8%6.3%2505.9%6.1%+43+0.9pp
15 to 192155.0%5.7%2325.5%6.0%-17-0.5pp
20 to 241553.6%5.4%2235.3%5.6%-68-1.7pp
25 to 292135.0%5.7%2235.3%5.5%-10-0.3pp
30 to 342335.4%5.9%2014.7%5.5%+32+0.7pp
35 to 392195.1%5.9%2024.8%5.4%+17+0.3pp
40 to 442195.1%5.6%2265.3%6.1%-7-0.2pp
45 to 492395.6%6.1%2546.0%6.4%-15-0.4pp
50 to 542916.8%6.2%2967.0%6.8%-5-0.2pp
55 to 593187.4%6.6%3157.4%7.1%+30.0pp
60 to 643387.9%6.9%3057.2%6.7%+33+0.7pp
65 to 692956.9%6.4%2816.6%6.4%+14+0.3pp
70 to 742586.0%5.9%2285.4%5.0%+30+0.6pp
75 to 791784.1%4.3%2195.2%3.7%-41-1.1pp
80 to 841663.9%2.9%1333.1%2.6%+33+0.8pp
85 and over1313.1%2.8%1303.1%2.7%+10.0pp
Total4,295100.0%100.0%4,236100.0%100.0%+590.0pp