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Shire of DardanupPopulation forecast

Shire of Dardanup

Population and age structure

Between 2021 and 2031, the age structure forecasts for Shire of Dardanup indicate a 6.4% increase in females under working age, a 77.9% increase in females of retirement age, and a 10.6% increase in females 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 Shire of Dardanup 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
Shire of Dardanup - Total females202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 45106.66106.48486.1+338
5 to 95427.05736.18265.9+285
10 to 145006.44684.97015.0+201
15 to 194365.65035.36734.8+237
20 to 243494.54374.66164.4+267
25 to 294555.94785.17145.1+259
30 to 345527.15796.18526.1+301
35 to 395316.95686.07805.6+249
40 to 445046.54865.17095.1+205
45 to 494696.14965.27145.1+245
50 to 545356.94935.27005.0+165
55 to 594696.15816.18115.8+342
60 to 644806.26677.08766.3+396
65 to 694195.46406.88896.4+470
70 to 743254.26106.48275.9+502
75 to 792643.45295.69076.5+643
80 to 842222.94094.37135.1+491
85 and over1912.53403.67935.7+602
Total persons7,753100.09,467100.013,950100.0+6,197
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), December 2023.

Key findings

In 2021, the dominant age structure for females in Shire of Dardanup was ages 30 to 34, which accounted for 7.1% of the total females.

The largest increase in females between 2021 and 2031 is forecast to be in ages 70 to 74, which is expected to increase by 286 and account for 6.4% of the total females.

The largest female 5 year age group in 2031 is 60 to 64 years, with a total of 667 females.

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