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, 70 to 74 year olds was the largest age group among residents in Oberon (A), accounting for 7.7% (431 people). This share was higher than Regional NSW (5.9%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 104 people and 1.5 percentage points.

Section overview

Age structure - Five year age groups

Oberon (A) - Total persons (Usual residence)

This table summarises five year age groups for Oberon (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

-27

-0.7pp

5 to 9

+7

-0.2pp

10 to 14

+69

+1.0pp

15 to 19

-81

-1.8pp

20 to 24

-70

-1.6pp

25 to 29

-5

-0.3pp

30 to 34

+61

+0.9pp

35 to 39

+42

+0.5pp

40 to 44

+12

-0.1pp

45 to 49

-56

-1.3pp

50 to 54

+28

+0.2pp

55 to 59

+92

+1.4pp

60 to 64

+20

0.0pp

65 to 69

-20

-0.7pp

70 to 74

+104

+1.5pp

75 to 79

+102

+1.7pp

80 to 84

+42

+0.7pp

85 and over

-3

-0.1pp

Data table

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

Five year age groups for Oberon (A). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
Five year age groups for Oberon (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 42674.8%5.5%2945.5%5.8%-27-0.7pp
5 to 93255.8%6.1%3186.0%6.4%+7-0.2pp
10 to 143736.7%6.3%3045.7%6.1%+69+1.0pp
15 to 192775.0%5.7%3586.8%6.0%-81-1.8pp
20 to 242524.5%5.4%3226.1%5.6%-70-1.6pp
25 to 292544.6%5.7%2594.9%5.5%-5-0.3pp
30 to 342805.0%5.9%2194.1%5.5%+61+0.9pp
35 to 392985.3%5.9%2564.8%5.4%+42+0.5pp
40 to 442975.3%5.6%2855.4%6.1%+12-0.1pp
45 to 493285.9%6.1%3847.2%6.4%-56-1.3pp
50 to 543967.1%6.2%3686.9%6.8%+28+0.2pp
55 to 594227.6%6.6%3306.2%7.1%+92+1.4pp
60 to 644137.4%6.9%3937.4%6.7%+200.0pp
65 to 694167.5%6.4%4368.2%6.4%-20-0.7pp
70 to 744317.7%5.9%3276.2%5.0%+104+1.5pp
75 to 792734.9%4.3%1713.2%3.7%+102+1.7pp
80 to 841602.9%2.9%1182.2%2.6%+42+0.7pp
85 and over1102.0%2.8%1132.1%2.7%-3-0.1pp
Total5,580100.0%100.0%5,301100.0%100.0%+2790.0pp