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, 5 to 9 year olds was the largest age group among residents in Muswellbrook (A), accounting for 7.6% (1,236 people). This share was higher than Regional NSW (6.1%). Since 2016, the biggest change was in 0 to 4 year olds, which decreased by 212 people and 1.4 percentage points.

Section overview

Age structure - Five year age groups

Muswellbrook (A) - Total persons (Usual residence)

This table summarises five year age groups for Muswellbrook (A) 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 Muswellbrook (A), with comparison markers for Regional NSW.

Muswellbrook (A)
Regional NSW

0 to 4

2021 count

1,031

% of total

6.3%

Change from 2016

-1.4pp

5 to 9

2021 count

1,236

% of total

7.6%

Change from 2016

-0.1pp

10 to 14

2021 count

1,197

% of total

7.3%

Change from 2016

+0.2pp

15 to 19

2021 count

1,066

% of total

6.5%

Change from 2016

+0.4pp

20 to 24

2021 count

869

% of total

5.3%

Change from 2016

-0.8pp

25 to 29

2021 count

1,128

% of total

6.9%

Change from 2016

+0.1pp

30 to 34

2021 count

1,172

% of total

7.2%

Change from 2016

-0.1pp

35 to 39

2021 count

1,077

% of total

6.6%

Change from 2016

0.0pp

40 to 44

2021 count

1,032

% of total

6.3%

Change from 2016

-0.1pp

45 to 49

2021 count

1,022

% of total

6.2%

Change from 2016

-0.8pp

50 to 54

2021 count

1,090

% of total

6.7%

Change from 2016

-0.4pp

55 to 59

2021 count

1,126

% of total

6.9%

Change from 2016

+0.8pp

60 to 64

2021 count

857

% of total

5.2%

Change from 2016

0.0pp

65 to 69

2021 count

789

% of total

4.8%

Change from 2016

+0.4pp

70 to 74

2021 count

680

% of total

4.2%

Change from 2016

+0.8pp

75 to 79

2021 count

458

% of total

2.8%

Change from 2016

+0.6pp

80 to 84

2021 count

280

% of total

1.7%

Change from 2016

0.0pp

85 and over

2021 count

252

% of total

1.5%

Change from 2016

+0.3pp

Data table

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

Five year age groups for Muswellbrook (A). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
Five year age groups for Muswellbrook (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 41,0316.3%5.5%1,2437.7%5.8%-212-1.4pp
5 to 91,2367.6%6.1%1,2407.7%6.4%-4-0.1pp
10 to 141,1977.3%6.3%1,1467.1%6.1%+51+0.2pp
15 to 191,0666.5%5.7%9876.1%6.0%+79+0.4pp
20 to 248695.3%5.4%9776.1%5.6%-108-0.8pp
25 to 291,1286.9%5.7%1,0926.8%5.5%+36+0.1pp
30 to 341,1727.2%5.9%1,1687.3%5.5%+4-0.1pp
35 to 391,0776.6%5.9%1,0546.6%5.4%+230.0pp
40 to 441,0326.3%5.6%1,0246.4%6.1%+8-0.1pp
45 to 491,0226.2%6.1%1,1247.0%6.4%-102-0.8pp
50 to 541,0906.7%6.2%1,1397.1%6.8%-49-0.4pp
55 to 591,1266.9%6.6%9826.1%7.1%+144+0.8pp
60 to 648575.2%6.9%8305.2%6.7%+270.0pp
65 to 697894.8%6.4%7104.4%6.4%+79+0.4pp
70 to 746804.2%5.9%5483.4%5.0%+132+0.8pp
75 to 794582.8%4.3%3502.2%3.7%+108+0.6pp
80 to 842801.7%2.9%2671.7%2.6%+130.0pp
85 and over2521.5%2.8%1951.2%2.7%+57+0.3pp
Total16,357100.0%100.0%16,086100.0%100.0%+2710.0pp