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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 60 to 64 year olds. The group that changed the most since 2001 was 65 to 69 year olds, increasing by 775 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 persons (Usual residence)20212001Change
Five year age groups (years)Number%Regional VIC %Number%Regional VIC %2001 to 2021
0 to 41,1235.05.41,2866.36.6-163
5 to 91,2865.76.01,5397.67.6-253
10 to 141,3275.96.21,6178.07.8-290
15 to 191,2145.45.61,4237.07.1-209
20 to 241,0254.65.19774.85.2+48
25 to 291,2775.75.81,0845.35.6+193
30 to 341,2945.85.91,2166.06.4+78
35 to 391,2665.65.91,3566.77.1-90
40 to 441,1995.35.61,5177.57.6-318
45 to 491,3255.96.11,4507.17.2-125
50 to 541,4906.66.41,3846.86.8+106
55 to 591,5747.06.71,1415.65.4+433
60 to 641,6467.37.09834.84.7+663
65 to 691,6397.36.78644.34.1+775
70 to 741,4286.46.08754.34.0+553
75 to 799754.34.27413.63.2+234
80 to 846803.02.84952.42.0+185
85 and over6512.92.73711.81.7+280
Total population22,419100.0100.020,319100.0100.0+2,100
Source: Australian Bureau of Statistics, Census of Population and Housing 2001 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

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

Overall, 16.7% of the population was aged between 0 and 15, and 24.0% were aged 65 years and over, compared with 17.6% and 22.3% respectively for Regional VIC.

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

  • A larger percentage of persons aged 65 to 69 (7.3% compared to 6.7%)
  • A smaller percentage of persons aged 20 to 24 (4.6% compared to 5.1%)

Emerging groups

From 2001 to 2021, Colac Otway Shire's population increased by 2,100 people (10.3%). This represents an average annual population change of 0.49% per year over the period.

The largest changes in age structure in this area between 2001 and 2021 were in the age groups:

  • 65 to 69 (+775 persons)
  • 60 to 64 (+663 persons)
  • 70 to 74 (+553 persons)
  • 55 to 59 (+433 persons)

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