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Mosman Municipal CouncilPopulation forecast

Mosman Municipal Council

Population and age structure

Between 2016 and 2026, the age structure forecasts for the Mosman Municipal Council indicate a 2.8% decrease in population under working age, a 12.9% increase in population of retirement age, and a 1.7% 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 Mosman Municipal Council 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
Mosman Municipal Council - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 41,6875.51,6285.21,6555.2-32
5 to 91,7015.61,6635.31,6845.2-18
10 to 141,7435.71,6955.41,7015.3-43
15 to 191,6985.61,6505.31,6535.1-45
20 to 241,6815.51,7995.71,8065.6+125
25 to 291,9286.32,0076.42,0316.3+103
30 to 342,0736.82,0726.62,1386.7+65
35 to 392,1156.92,0926.72,1476.7+32
40 to 442,3747.82,1696.92,1996.8-175
45 to 492,3197.62,2177.12,2196.9-101
50 to 542,0986.92,2637.22,1506.7+52
55 to 591,9066.32,0876.62,0546.4+148
60 to 641,6655.51,8485.91,9756.1+311
65 to 691,7025.61,6695.31,8015.6+100
70 to 741,4214.71,4214.51,5544.8+134
75 to 798662.81,2664.01,2844.0+419
80 to 846342.19623.11,0113.1+377
85 and over8792.98942.81,0633.3+184
Total persons30,489100.031,400100.032,125100.0+1,635
Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, December 2017.

Key findings

In 2016, the dominant age structure for persons in the Mosman Municipal Council was ages 40 to 44, which accounted for 7.8% 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 400 and account for 4.0% of the total persons.

The largest 5 year age group in 2026 is 50 to 54 years, with a total of 2,263 persons.

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