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City of JoondalupPopulation forecast

City of Joondalup

Population and age structure

Between 2021 and 2031, the age structure forecasts for City of Joondalup indicate a 8.2% decrease in population under working age, a 40.9% increase in population of retirement age, and a 0.8% 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 the City of Joondalup 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
City of Joondalup - Total persons202120312041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 48,9685.48,8235.18,7975.0-171
5 to 910,5146.49,8495.79,3665.3-1,148
10 to 1411,6737.19,9235.79,3745.3-2,299
15 to 1910,5956.410,7056.29,9165.6-679
20 to 249,3495.711,1676.410,2215.8+872
25 to 297,8004.78,8665.19,3585.3+1,558
30 to 349,3415.78,5614.99,5685.4+227
35 to 3911,1266.79,6335.69,8595.6-1,267
40 to 4410,9806.711,1796.410,0845.7-896
45 to 4911,6117.011,9996.910,6116.0-1,000
50 to 5411,8017.110,7386.211,1176.3-684
55 to 5911,4106.910,5206.111,0076.2-403
60 to 6410,9146.610,7026.29,8155.6-1,099
65 to 699,7645.910,4386.09,7825.5+18
70 to 748,5185.29,9995.810,0525.7+1,534
75 to 794,9583.08,4304.99,1385.2+4,180
80 to 842,9221.86,5243.87,7604.4+4,838
85 and over2,8311.75,4463.110,6506.0+7,819
Total persons165,075100.0173,502100.0176,473100.0+11,398
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), March 2023.

Key findings

In 2021, the dominant age structure for persons in City of Joondalup was ages 50 to 54, which accounted for 7.1% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 80 to 84, which is expected to increase by 3,602 and account for 3.8% of the total persons.

The largest 5 year age group in 2031 is 45 to 49 years, with a total of 11,999 persons.

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