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Moorabool ShirePopulation forecast

Bacchus Marsh

Population and age structure

Between 2016 and 2026, the age structure forecasts for Bacchus Marsh indicate a 61.7% increase in population under working age, a 33.5% increase in population of retirement age, and a 55.6% 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 Bacchus Marsh 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
Bacchus Marsh - Total persons201620262041Change between 2016 and 2041
Age group (years)Number%Number%Number%Number
0 to 44016.17007.09216.8+520
5 to 94356.66686.69446.9+509
10 to 144026.16346.39116.7+509
15 to 193815.85745.78085.9+427
20 to 243785.75475.47225.3+344
25 to 294096.26806.88186.0+409
30 to 343605.47557.59426.9+582
35 to 394046.17887.81,0647.8+660
40 to 444076.26756.71,0347.6+626
45 to 494096.25505.58996.6+490
50 to 544236.45335.37895.8+366
55 to 593986.05345.36775.0+279
60 to 643976.05365.36344.7+236
65 to 694406.75315.36364.7+196
70 to 743695.64784.85894.3+220
75 to 792543.84174.25223.8+268
80 to 841642.52552.53842.8+220
85 and over1792.71962.03332.4+154
Total persons6,610100.010,052100.013,628100.0+7,018
Population and household forecasts, 2016 to 2041, prepared by .id , the population experts, November 2019.

Key findings

In 2016, the dominant age structure for persons in Bacchus Marsh was ages 65 to 69, which accounted for 6.7% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 30 to 34, which is expected to increase by 395 and account for 7.5% of the total persons.

The largest 5 year age group in 2026 is 35 to 39 years, with a total of 788 persons.

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