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City of MeltonPopulation forecast

Cobblebank - Strathtulloh

Population and age structure

Between 2021 and 2031, the age structure forecasts for Cobblebank - Strathtulloh indicate a 188.1% increase in population under working age, a 434.3% increase in population of retirement age, and a 197.1% increase 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 the City of Melton 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
Cobblebank - Strathtulloh - Total persons202120312051Change between 2021 and 2051
Age group (years)Number%Number%Number%Number
0 to 41,07614.02,62911.43,6018.7+2,525
5 to 980510.42,37010.33,5518.6+2,746
10 to 144826.31,8097.83,2067.7+2,724
15 to 193064.01,3135.72,7686.7+2,462
20 to 244776.21,3005.62,3675.7+1,890
25 to 2983810.91,9458.42,7516.6+1,913
30 to 341,21615.82,83112.33,7799.1+2,563
35 to 391,01013.12,83112.34,0779.8+3,067
40 to 445196.72,0538.93,5198.5+3,000
45 to 492843.71,3075.72,9107.0+2,626
50 to 542012.67863.42,3175.6+2,116
55 to 591832.45502.41,8074.4+1,624
60 to 641331.74341.91,3743.3+1,241
65 to 69981.33241.49912.4+893
70 to 74500.62150.97411.8+691
75 to 79240.31470.65791.4+555
80 to 8430.01110.54751.1+472
85 and over30.01540.75821.4+579
Total persons7,708100.023,108100.041,394100.0+33,686
Source: Population and household forecasts, 2021 to 2051, prepared by .id (informed decisions), June 2023.

Key findings

In 2021, the dominant age structure for persons in Cobblebank - Strathtulloh was ages 30 to 34, which accounted for 15.8% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 35 to 39, which is expected to increase by 1,821 and account for 12.3% of the total persons.

The largest 5 year age group in 2031 is 30 to 34 years, with a total of 2,831 persons.

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