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 Greater Bendigo (C), accounting for 6.5% (7,862 people). This share was higher than Regional Vic. (5.8%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 1,851 people and 1.2 percentage points.

Section overview

Age structure - Five year age groups

Greater Bendigo (C) - Total persons (Usual residence)

This table summarises five year age groups for Greater Bendigo (C) in 2021 for persons, with comparison against Regional Vic. 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

+75

-0.5pp

5 to 9

+488

-0.2pp

10 to 14

+990

+0.2pp

15 to 19

-41

-0.6pp

20 to 24

-319

-0.9pp

25 to 29

+908

+0.2pp

30 to 34

+1,031

+0.3pp

35 to 39

+1,232

+0.5pp

40 to 44

+333

-0.3pp

45 to 49

+396

-0.3pp

50 to 54

+193

-0.4pp

55 to 59

+305

-0.3pp

60 to 64

+938

+0.2pp

65 to 69

+830

+0.2pp

70 to 74

+1,851

+1.2pp

75 to 79

+801

+0.4pp

80 to 84

+628

+0.3pp

85 and over

+346

0.0pp

Data table

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

Five year age groups for Greater Bendigo (C). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional Vic..
Five year age groups for Greater Bendigo (C). 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 47,1495.9%5.4%7,0746.4%5.8%+75-0.5pp
5 to 97,7946.4%6.0%7,3066.6%6.3%+488-0.2pp
10 to 147,7976.4%6.2%6,8076.2%6.1%+990+0.2pp
15 to 197,0215.8%5.6%7,0626.4%6.1%-41-0.6pp
20 to 247,2556.0%5.1%7,5746.9%5.5%-319-0.9pp
25 to 297,8626.5%5.8%6,9546.3%5.4%+908+0.2pp
30 to 347,8236.4%5.9%6,7926.1%5.5%+1,031+0.3pp
35 to 397,6176.3%5.9%6,3855.8%5.4%+1,232+0.5pp
40 to 447,0535.8%5.6%6,7206.1%6.1%+333-0.3pp
45 to 497,3066.0%6.1%6,9106.3%6.6%+396-0.3pp
50 to 547,3686.1%6.4%7,1756.5%6.8%+193-0.4pp
55 to 597,6066.3%6.7%7,3016.6%7.1%+305-0.3pp
60 to 647,6876.3%7.0%6,7496.1%6.9%+938+0.2pp
65 to 697,1155.9%6.7%6,2855.7%6.6%+830+0.2pp
70 to 746,4245.3%6.0%4,5734.1%4.9%+1,851+1.2pp
75 to 794,3663.6%4.2%3,5653.2%3.6%+801+0.4pp
80 to 843,1262.6%2.8%2,4982.3%2.6%+628+0.3pp
85 and over3,0922.5%2.7%2,7462.5%2.7%+3460.0pp
Total121,470100.0%100.0%110,477100.0%100.0%+10,9930.0pp