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Colac Otway ShireCommunity profile

Colac Otway Shire

Five year age groups

In 2021, the largest age group in Colac Otway Shire was 65 to 69 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 199 people.

The Age Structure of Colac Otway Shire provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Colac Otway Shire's residential role and function and how it is likely to change in the future.

Five year age groups present a classic age profile of the population. Each age group covers exactly five years, which enables direct comparison between each group.

To get a more complete picture Colac Otway Shire's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.

Q:

Derived from the Census question:

'What is the person's date of birth or age?'

Age structure - Five year age groups
Colac Otway Shire - Total females (Usual residence)20212016Change
Five year age groups (years)Number%Regional VIC %Number%Regional VIC %2016 to 2021
0 to 45424.85.25635.45.6-21
5 to 96185.55.75915.66.0+27
10 to 146255.65.95925.65.8+33
15 to 195645.05.35755.55.8-11
20 to 244774.34.95164.95.3-39
25 to 296255.65.75265.05.4+99
30 to 346445.76.05425.25.6+102
35 to 396355.76.05064.85.5+129
40 to 445995.35.76065.86.2-7
45 to 496575.96.17256.96.6-68
50 to 547746.96.57216.96.9+53
55 to 597977.16.87847.57.1+13
60 to 648177.37.18117.76.9+6
65 to 698297.46.77447.16.5+85
70 to 747456.66.05465.24.9+199
75 to 794824.34.24384.23.7+44
80 to 843593.22.93283.12.8+31
85 and over4153.73.23713.53.4+44
Total population11,204100.0100.010,485100.0100.0+719
Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the female five year age groups of Colac Otway Shire in 2021 compared to Regional VIC shows that there was a lower proportion of females in the younger age groups (under 15) and a higher proportion of females in the older age groups (65+).

Overall, 15.9% of the female population was aged between 0 and 15, and 25.3% were aged 65 years and over, compared with 16.8% and 23.0% respectively for Regional VIC.

The major differences between the female age structure of Colac Otway Shire and Regional VIC were:

  • A larger percentage of females aged 65 to 69 (7.4% compared to 6.7%)
  • A larger percentage of females aged 70 to 74 (6.6% compared to 6.0%)
  • A smaller percentage of females aged 20 to 24 (4.3% compared to 4.9%)

Emerging groups

From 2016 to 2021, Colac Otway Shire's female population increased by 719 people (6.9%). This represents an average annual population change of 1.34% per year over the period.

The largest changes in female age structure in this area between 2016 and 2021 were in the age groups:

  • 70 to 74 (+199 females)
  • 35 to 39 (+129 females)
  • 30 to 34 (+102 females)
  • 25 to 29 (+99 females)

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