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Northern Beaches CouncilPopulation forecast

North Balgowlah

Population and age structure

Between 2016 and 2026, the age structure forecasts for North Balgowlah indicate a 30.4% decrease in population under working age, a 64.4% increase in population of retirement age, and a 1.6% 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 North Balgowlah 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
North Balgowlah - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 43439.02466.62807.3-63
5 to 951413.42847.73208.3-194
10 to 143669.63218.72977.7-69
15 to 192476.53278.82346.1-13
20 to 241614.21945.21774.6+16
25 to 29912.41193.21473.8+56
30 to 341062.81584.31794.7+73
35 to 392887.52366.42666.9-22
40 to 443629.52697.33078.0-55
45 to 493799.92998.12927.6-87
50 to 542857.52737.42296.0-56
55 to 591905.02386.41965.1+6
60 to 641594.21925.21884.9+29
65 to 691283.31534.11884.9+60
70 to 74972.51383.71704.4+73
75 to 79591.51183.21483.9+89
80 to 8470.2822.21183.1+111
85 and over431.1581.6962.5+53
Total persons3,825100.03,704100.03,832100.0+7
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 North Balgowlah was ages 5 to 9, which accounted for 13.4% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 15 to 19, which is expected to increase by 80 and account for 8.8% of the total persons.

The largest 5 year age group in 2026 is 15 to 19 years, with a total of 327 persons.

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