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, 25 to 29 year olds was the largest age group among residents in Cessnock (C), accounting for 7.2% (4,606 people). This share was higher than Regional NSW (5.7%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 1,094 people and 0.9 percentage points.

Section overview

Age structure - Five year age groups

Cessnock (C) - Total persons (Usual residence)

This table summarises five year age groups for Cessnock (C) in 2021 for persons, with comparison against Regional NSW and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Cessnock (C), with comparison markers for Regional NSW.

Cessnock (C)
Regional NSW

0 to 4

2021 count

4,281

% of total

6.7%

Change from 2016

-0.1pp

5 to 9

2021 count

4,332

% of total

6.8%

Change from 2016

-0.4pp

10 to 14

2021 count

4,220

% of total

6.6%

Change from 2016

+0.1pp

15 to 19

2021 count

3,731

% of total

5.9%

Change from 2016

-0.3pp

20 to 24

2021 count

3,847

% of total

6.0%

Change from 2016

-0.2pp

25 to 29

2021 count

4,606

% of total

7.2%

Change from 2016

+0.9pp

30 to 34

2021 count

4,489

% of total

7.1%

Change from 2016

+0.6pp

35 to 39

2021 count

4,202

% of total

6.6%

Change from 2016

+0.7pp

40 to 44

2021 count

3,700

% of total

5.8%

Change from 2016

-0.6pp

45 to 49

2021 count

3,781

% of total

5.9%

Change from 2016

-0.6pp

50 to 54

2021 count

3,962

% of total

6.2%

Change from 2016

+0.1pp

55 to 59

2021 count

3,710

% of total

5.8%

Change from 2016

-0.9pp

60 to 64

2021 count

3,940

% of total

6.2%

Change from 2016

0.0pp

65 to 69

2021 count

3,496

% of total

5.5%

Change from 2016

-0.3pp

70 to 74

2021 count

3,085

% of total

4.8%

Change from 2016

+0.6pp

75 to 79

2021 count

1,924

% of total

3.0%

Change from 2016

+0.4pp

80 to 84

2021 count

1,156

% of total

1.8%

Change from 2016

-0.1pp

85 and over

2021 count

1,163

% of total

1.8%

Change from 2016

-0.1pp

Data table

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

Five year age groups for Cessnock (C). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
Five year age groups for Cessnock (C). 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 44,2816.7%5.5%3,7866.8%5.8%+495-0.1pp
5 to 94,3326.8%6.1%3,9957.2%6.4%+337-0.4pp
10 to 144,2206.6%6.3%3,5906.5%6.1%+630+0.1pp
15 to 193,7315.9%5.7%3,4486.2%6.0%+283-0.3pp
20 to 243,8476.0%5.4%3,4416.2%5.6%+406-0.2pp
25 to 294,6067.2%5.7%3,5126.3%5.5%+1,094+0.9pp
30 to 344,4897.1%5.9%3,6316.5%5.5%+858+0.6pp
35 to 394,2026.6%5.9%3,2965.9%5.4%+906+0.7pp
40 to 443,7005.8%5.6%3,5686.4%6.1%+132-0.6pp
45 to 493,7815.9%6.1%3,6116.5%6.4%+170-0.6pp
50 to 543,9626.2%6.2%3,3686.1%6.8%+594+0.1pp
55 to 593,7105.8%6.6%3,7296.7%7.1%-19-0.9pp
60 to 643,9406.2%6.9%3,4466.2%6.7%+4940.0pp
65 to 693,4965.5%6.4%3,2105.8%6.4%+286-0.3pp
70 to 743,0854.8%5.9%2,3194.2%5.0%+766+0.6pp
75 to 791,9243.0%4.3%1,4612.6%3.7%+463+0.4pp
80 to 841,1561.8%2.9%1,0801.9%2.6%+76-0.1pp
85 and over1,1631.8%2.8%1,0501.9%2.7%+113-0.1pp
Total63,632100.0%100.0%55,560100.0%100.0%+8,0720.0pp