Colac Otway ShirePopulation forecast
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This forecast has been updated with 2016 Census dwelling counts and the 2016 Estimated Resident Population. More information can be found here.

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Colac Otway Shire

Population and age structure

Between 2016 and 2026, the age structure forecasts for Colac Otway Shire indicate a 10.1% increase in population under working age, a 21.8% increase in population of retirement age, and a 0.4% decrease in population of working age.

Knowledge of how the age structure of the population is changing is essential for planning age-based facilities and services, such as child care, recreation and aged care.

The forecast age groups of Colac Otway Shire is a function of the current age of the population (people aging each year, being born and dying) as well as the age of people migrating into and out of the area. This in turn is driven by location (fringe, city centre, regional or rural) the existing housing stock (separate dwellings, medium or high density), the amount and type of new residential development (same as existing stock, or diversifying) and where the area is in a cycle of change. We call this the area’s residential role and function. You can learn more about this in the section household and suburb life cycles.

Forecast age structure - 5 year age groups
Colac Otway Shire - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 4 1,2565.91,3485.91,3795.8+123
5 to 9 1,3176.21,4726.51,5106.3+193
10 to 14 1,2786.01,4216.31,5036.3+225
15 to 19 1,2185.71,2155.41,3085.5+90
20 to 24 1,1685.59764.31,0334.3-135
25 to 29 1,2045.61,0764.71,1014.6-103
30 to 34 1,1685.51,1915.31,1965.0+28
35 to 39 1,0745.01,3265.81,3525.7+277
40 to 44 1,2495.81,4136.21,4796.2+230
45 to 49 1,3896.51,3546.01,5126.3+122
50 to 54 1,4466.81,4016.21,5266.4+80
55 to 59 1,5607.31,5106.71,5306.4-31
60 to 64 1,5747.41,5416.81,5516.5-23
65 to 69 1,4346.71,5406.81,5486.5+114
70 to 74 1,0955.11,3836.11,4055.9+310
75 to 79 8033.81,0984.81,2105.1+407
80 to 84 5582.67623.49554.0+397
85 and over5692.76502.97673.2+198
Total persons21,361100.022,677100.023,865100.0+2,504

Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, November 2017.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 767 Forecast persons aged 80-84,  2036: 955 Forecast persons aged 75-79,  2036: 1,210 Forecast persons aged 70-74,  2036: 1,405 Forecast persons aged 65-69,  2036: 1,548 Forecast persons aged 60-64,  2036: 1,551 Forecast persons aged 55-59,  2036: 1,530 Forecast persons aged 50-54,  2036: 1,526 Forecast persons aged 45-49,  2036: 1,512 Forecast persons aged 40-44,  2036: 1,479 Forecast persons aged 35-39,  2036: 1,352 Forecast persons aged 30-34,  2036: 1,196 Forecast persons aged 25-29,  2036: 1,101 Forecast persons aged 20-24,  2036: 1,033 Forecast persons aged 15-19,  2036: 1,308 Forecast persons aged 10-14,  2036: 1,503 Forecast persons aged 5-9,  2036: 1,510 Forecast persons aged 0-4,  2036: 1,379 Forecast persons aged 85+,  2026: 650 Forecast persons aged 80-84,  2026: 762 Forecast persons aged 75-79,  2026: 1,098 Forecast persons aged 70-74,  2026: 1,383 Forecast persons aged 65-69,  2026: 1,540 Forecast persons aged 60-64,  2026: 1,541 Forecast persons aged 55-59,  2026: 1,510 Forecast persons aged 50-54,  2026: 1,401 Forecast persons aged 45-49,  2026: 1,354 Forecast persons aged 40-44,  2026: 1,413 Forecast persons aged 35-39,  2026: 1,326 Forecast persons aged 30-34,  2026: 1,191 Forecast persons aged 25-29,  2026: 1,076 Forecast persons aged 20-24,  2026: 976 Forecast persons aged 15-19,  2026: 1,215 Forecast persons aged 10-14,  2026: 1,421 Forecast persons aged 5-9,  2026: 1,472 Forecast persons aged 0-4,  2026: 1,348 Forecast persons aged 85+,  2016: 569 Forecast persons aged 80-84,  2016: 558 Forecast persons aged 75-79,  2016: 803 Forecast persons aged 70-74,  2016: 1,095 Forecast persons aged 65-69,  2016: 1,434 Forecast persons aged 60-64,  2016: 1,574 Forecast persons aged 55-59,  2016: 1,560 Forecast persons aged 50-54,  2016: 1,446 Forecast persons aged 45-49,  2016: 1,389 Forecast persons aged 40-44,  2016: 1,249 Forecast persons aged 35-39,  2016: 1,074 Forecast persons aged 30-34,  2016: 1,168 Forecast persons aged 25-29,  2016: 1,204 Forecast persons aged 20-24,  2016: 1,168 Forecast persons aged 15-19,  2016: 1,218 Forecast persons aged 10-14,  2016: 1,278 Forecast persons aged 5-9,  2016: 1,317 Forecast persons aged 0-4,  2016: 1,256
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, November 2017.
Forecast change in age structure - 5 year age groups
Forecast change in age structure - 5 year age groups Forecast persons aged 85+,  2026 to 2036: 118 Forecast persons aged 80-84,  2026 to 2036: 193 Forecast persons aged 75-79,  2026 to 2036: 112 Forecast persons aged 70-74,  2026 to 2036: 21 Forecast persons aged 65-69,  2026 to 2036: 8 Forecast persons aged 60-64,  2026 to 2036: 11 Forecast persons aged 55-59,  2026 to 2036: 19 Forecast persons aged 50-54,  2026 to 2036: 126 Forecast persons aged 45-49,  2026 to 2036: 157 Forecast persons aged 40-44,  2026 to 2036: 65 Forecast persons aged 35-39,  2026 to 2036: 26 Forecast persons aged 30-34,  2026 to 2036: 5 Forecast persons aged 25-29,  2026 to 2036: 25 Forecast persons aged 20-24,  2026 to 2036: 57 Forecast persons aged 15-19,  2026 to 2036: 93 Forecast persons aged 10-14,  2026 to 2036: 83 Forecast persons aged 5-9,  2026 to 2036: 38 Forecast persons aged 0-4,  2026 to 2036: 31 Forecast persons aged 85+,  2016 to 2026: 81 Forecast persons aged 80-84,  2016 to 2026: 204 Forecast persons aged 75-79,  2016 to 2026: 295 Forecast persons aged 70-74,  2016 to 2026: 288 Forecast persons aged 65-69,  2016 to 2026: 106 Forecast persons aged 60-64,  2016 to 2026: -34 Forecast persons aged 55-59,  2016 to 2026: -50 Forecast persons aged 50-54,  2016 to 2026: -45 Forecast persons aged 45-49,  2016 to 2026: -35 Forecast persons aged 40-44,  2016 to 2026: 165 Forecast persons aged 35-39,  2016 to 2026: 251 Forecast persons aged 30-34,  2016 to 2026: 23 Forecast persons aged 25-29,  2016 to 2026: -127 Forecast persons aged 20-24,  2016 to 2026: -192 Forecast persons aged 15-19,  2016 to 2026: -3 Forecast persons aged 10-14,  2016 to 2026: 143 Forecast persons aged 5-9,  2016 to 2026: 155 Forecast persons aged 0-4,  2016 to 2026: 92
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, November 2017.

Key findings

In 2016, the dominant age structure for persons in Colac Otway Shire was ages 60 to 64 , which accounted for 7.4% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 75 to 79 , which is expected to increase by 295 and account for 4.8% of the total persons.

The largest 5 year age group in 2026 is 60 to 64 years, with a total of 1,541 persons.

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