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 Loddon (S), accounting for 10% (773 people). This share was higher than Regional Vic. (7%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 139 people and 1.6 percentage points.

Section overview

Age structure - Five year age groups

Loddon (S) - Total persons (Usual residence)

This table summarises five year age groups for Loddon (S) in 2021 for persons, with comparison against Regional Vic. and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Loddon (S), with comparison markers for Regional Vic..

Loddon (S)
Regional Vic.

0 to 4

2021 count

313

% of total

4.0%

Change from 2016

-0.5pp

5 to 9

2021 count

370

% of total

4.8%

Change from 2016

-0.6pp

10 to 14

2021 count

474

% of total

6.1%

Change from 2016

+0.1pp

15 to 19

2021 count

389

% of total

5.0%

Change from 2016

-0.4pp

20 to 24

2021 count

271

% of total

3.5%

Change from 2016

+0.4pp

25 to 29

2021 count

276

% of total

3.6%

Change from 2016

+0.5pp

30 to 34

2021 count

340

% of total

4.4%

Change from 2016

+0.8pp

35 to 39

2021 count

324

% of total

4.2%

Change from 2016

0.0pp

40 to 44

2021 count

365

% of total

4.7%

Change from 2016

-0.8pp

45 to 49

2021 count

435

% of total

5.6%

Change from 2016

-1.0pp

50 to 54

2021 count

551

% of total

7.1%

Change from 2016

-0.6pp

55 to 59

2021 count

606

% of total

7.8%

Change from 2016

-1.5pp

60 to 64

2021 count

773

% of total

10.0%

Change from 2016

+1.5pp

65 to 69

2021 count

680

% of total

8.8%

Change from 2016

0.0pp

70 to 74

2021 count

618

% of total

8.0%

Change from 2016

+1.6pp

75 to 79

2021 count

404

% of total

5.2%

Change from 2016

+0.3pp

80 to 84

2021 count

244

% of total

3.1%

Change from 2016

-0.4pp

85 and over

2021 count

305

% of total

3.9%

Change from 2016

+0.5pp

Data table

Five year age groups for Loddon (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Vic..

Five year age groups for Loddon (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Vic..
Five year age groups for Loddon (S). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Vic..
Category20212016Change
Count%Regional Vic.%Count%Regional Vic.%Countpp
0 to 43134.0%5.4%3374.5%5.8%-24-0.5pp
5 to 93704.8%6.0%4085.4%6.3%-38-0.6pp
10 to 144746.1%6.2%4486.0%6.1%+26+0.1pp
15 to 193895.0%5.6%4075.4%6.1%-18-0.4pp
20 to 242713.5%5.1%2353.1%5.5%+36+0.4pp
25 to 292763.6%5.8%2333.1%5.4%+43+0.5pp
30 to 343404.4%5.9%2733.6%5.5%+67+0.8pp
35 to 393244.2%5.9%3194.2%5.4%+50.0pp
40 to 443654.7%5.6%4115.5%6.1%-46-0.8pp
45 to 494355.6%6.1%4976.6%6.6%-62-1.0pp
50 to 545517.1%6.4%5817.7%6.8%-30-0.6pp
55 to 596067.8%6.7%6999.3%7.1%-93-1.5pp
60 to 6477310.0%7.0%6428.5%6.9%+131+1.5pp
65 to 696808.8%6.7%6658.8%6.6%+150.0pp
70 to 746188.0%6.0%4796.4%4.9%+139+1.6pp
75 to 794045.2%4.2%3694.9%3.6%+35+0.3pp
80 to 842443.1%2.8%2623.5%2.6%-18-0.4pp
85 and over3053.9%2.7%2553.4%2.7%+50+0.5pp
Total7,759100.0%100.0%7,516100.0%100.0%+2430.0pp