City of KwinanaPopulation forecast
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City of Kwinana

Population and age structure

Between 2011 and 2026, the age structure forecasts for the City of Kwinana indicate a 119.3% increase in population under working age, a 95.0% increase in population of retirement age, and a 100.6% 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 the City of Kwinana 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 Kwinana - Total persons201120262036Change between 2011 and 2036
Age group (years)Number%Number%Number%Number
0 to 4 2,6228.55,9269.57,9799.5+5,357
5 to 9 2,2357.35,0298.06,6907.9+4,455
10 to 14 1,9886.54,0596.55,4456.5+3,457
15 to 19 2,0536.73,8516.15,1836.2+3,130
20 to 24 2,3917.84,8557.76,4197.6+4,028
25 to 29 2,9939.85,9509.57,7739.2+4,780
30 to 34 2,6358.65,8149.37,6999.1+5,064
35 to 39 2,3217.65,0638.16,7098.0+4,388
40 to 44 2,3497.74,4617.15,7356.8+3,386
45 to 49 1,8956.23,8546.15,1436.1+3,248
50 to 54 1,6515.43,2045.14,4245.3+2,773
55 to 59 1,4544.72,8104.53,8054.5+2,351
60 to 64 1,2604.12,2633.63,2073.8+1,947
65 to 69 9533.11,8162.92,6093.1+1,656
70 to 74 7542.51,3682.21,9862.4+1,232
75 to 79 5671.81,0311.61,4931.8+926
80 to 84 3191.06401.09401.1+621
85 and over2570.87031.19671.1+710
Total persons30,697100.062,695100.084,207100.0+53,510

Population and household forecasts, 2011 to 2036, prepared by .id , the population experts, May 2015.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 967 Forecast persons aged 80-84,  2036: 940 Forecast persons aged 75-79,  2036: 1,493 Forecast persons aged 70-74,  2036: 1,986 Forecast persons aged 65-69,  2036: 2,609 Forecast persons aged 60-64,  2036: 3,207 Forecast persons aged 55-59,  2036: 3,805 Forecast persons aged 50-54,  2036: 4,424 Forecast persons aged 45-49,  2036: 5,143 Forecast persons aged 40-44,  2036: 5,735 Forecast persons aged 35-39,  2036: 6,709 Forecast persons aged 30-34,  2036: 7,699 Forecast persons aged 25-29,  2036: 7,773 Forecast persons aged 20-24,  2036: 6,419 Forecast persons aged 15-19,  2036: 5,183 Forecast persons aged 10-14,  2036: 5,445 Forecast persons aged 5-9,  2036: 6,690 Forecast persons aged 0-4,  2036: 7,979 Forecast persons aged 85+,  2026: 703 Forecast persons aged 80-84,  2026: 640 Forecast persons aged 75-79,  2026: 1,031 Forecast persons aged 70-74,  2026: 1,368 Forecast persons aged 65-69,  2026: 1,816 Forecast persons aged 60-64,  2026: 2,263 Forecast persons aged 55-59,  2026: 2,810 Forecast persons aged 50-54,  2026: 3,204 Forecast persons aged 45-49,  2026: 3,854 Forecast persons aged 40-44,  2026: 4,461 Forecast persons aged 35-39,  2026: 5,063 Forecast persons aged 30-34,  2026: 5,814 Forecast persons aged 25-29,  2026: 5,950 Forecast persons aged 20-24,  2026: 4,855 Forecast persons aged 15-19,  2026: 3,851 Forecast persons aged 10-14,  2026: 4,059 Forecast persons aged 5-9,  2026: 5,029 Forecast persons aged 0-4,  2026: 5,926 Forecast persons aged 85+,  2011: 257 Forecast persons aged 80-84,  2011: 319 Forecast persons aged 75-79,  2011: 567 Forecast persons aged 70-74,  2011: 754 Forecast persons aged 65-69,  2011: 953 Forecast persons aged 60-64,  2011: 1,260 Forecast persons aged 55-59,  2011: 1,454 Forecast persons aged 50-54,  2011: 1,651 Forecast persons aged 45-49,  2011: 1,895 Forecast persons aged 40-44,  2011: 2,349 Forecast persons aged 35-39,  2011: 2,321 Forecast persons aged 30-34,  2011: 2,635 Forecast persons aged 25-29,  2011: 2,993 Forecast persons aged 20-24,  2011: 2,391 Forecast persons aged 15-19,  2011: 2,053 Forecast persons aged 10-14,  2011: 1,988 Forecast persons aged 5-9,  2011: 2,235 Forecast persons aged 0-4,  2011: 2,622
Population and household forecasts, 2011 to 2036, prepared by .id the population experts, May 2015.
Forecast change in age structure - 5 year age groups
Forecast change in age structure - 5 year age groups Forecast persons aged 85+,  2026 to 2036: 264 Forecast persons aged 80-84,  2026 to 2036: 300 Forecast persons aged 75-79,  2026 to 2036: 462 Forecast persons aged 70-74,  2026 to 2036: 618 Forecast persons aged 65-69,  2026 to 2036: 793 Forecast persons aged 60-64,  2026 to 2036: 944 Forecast persons aged 55-59,  2026 to 2036: 994 Forecast persons aged 50-54,  2026 to 2036: 1,220 Forecast persons aged 45-49,  2026 to 2036: 1,289 Forecast persons aged 40-44,  2026 to 2036: 1,274 Forecast persons aged 35-39,  2026 to 2036: 1,646 Forecast persons aged 30-34,  2026 to 2036: 1,886 Forecast persons aged 25-29,  2026 to 2036: 1,824 Forecast persons aged 20-24,  2026 to 2036: 1,564 Forecast persons aged 15-19,  2026 to 2036: 1,332 Forecast persons aged 10-14,  2026 to 2036: 1,386 Forecast persons aged 5-9,  2026 to 2036: 1,662 Forecast persons aged 0-4,  2026 to 2036: 2,053 Forecast persons aged 85+,  2011 to 2026: 446 Forecast persons aged 80-84,  2011 to 2026: 321 Forecast persons aged 75-79,  2011 to 2026: 464 Forecast persons aged 70-74,  2011 to 2026: 614 Forecast persons aged 65-69,  2011 to 2026: 863 Forecast persons aged 60-64,  2011 to 2026: 1,003 Forecast persons aged 55-59,  2011 to 2026: 1,356 Forecast persons aged 50-54,  2011 to 2026: 1,553 Forecast persons aged 45-49,  2011 to 2026: 1,959 Forecast persons aged 40-44,  2011 to 2026: 2,112 Forecast persons aged 35-39,  2011 to 2026: 2,742 Forecast persons aged 30-34,  2011 to 2026: 3,179 Forecast persons aged 25-29,  2011 to 2026: 2,957 Forecast persons aged 20-24,  2011 to 2026: 2,464 Forecast persons aged 15-19,  2011 to 2026: 1,798 Forecast persons aged 10-14,  2011 to 2026: 2,071 Forecast persons aged 5-9,  2011 to 2026: 2,794 Forecast persons aged 0-4,  2011 to 2026: 3,304
Population and household forecasts, 2011 to 2036, prepared by .id the population experts, May 2015.

Key findings

In 2011, the dominant age structure for persons in the City of Kwinana was ages 25 to 29 , which accounted for 9.8% of the total persons.

The largest increase in persons between 2011 and 2026 is forecast to be in ages 0 to 4 , which is expected to increase by 3,304 and account for 9.5% of the total persons.

The largest 5 year age group in 2026 is 25 to 29 years, with a total of 5,950 persons.

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