City of OnkaparingaPopulation forecast
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Woodcroft

Population and age structure

Between 2016 and 2026, the age structure forecasts for Woodcroft indicate a 2.2% decrease in population under working age, a 28.3% increase in population of retirement age, and a 3.0% 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 Onkaparinga 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
Woodcroft - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 46125.46825.96795.7+67
5 to 98137.27516.57576.4-56
10 to 148097.27526.58016.7-8
15 to 198837.87796.87736.5-110
20 to 247686.86545.76445.4-124
25 to 296375.66565.76485.4+11
30 to 347086.36886.06895.8-19
35 to 396685.97166.27466.3+78
40 to 447686.87726.77936.7+25
45 to 498537.57426.47826.6-71
50 to 548247.37276.37436.2-81
55 to 597266.47316.36805.7-46
60 to 645484.87006.16535.5+105
65 to 694984.46345.56505.5+152
70 to 744353.85004.36125.1+177
75 to 793353.04193.65234.4+188
80 to 842171.93242.83733.1+156
85 and over2031.82892.53563.0+153
Total persons11,305100.011,516100.011,903100.0+598

Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, October 2017.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 356 Forecast persons aged 80-84,  2036: 373 Forecast persons aged 75-79,  2036: 523 Forecast persons aged 70-74,  2036: 612 Forecast persons aged 65-69,  2036: 650 Forecast persons aged 60-64,  2036: 653 Forecast persons aged 55-59,  2036: 680 Forecast persons aged 50-54,  2036: 743 Forecast persons aged 45-49,  2036: 782 Forecast persons aged 40-44,  2036: 793 Forecast persons aged 35-39,  2036: 746 Forecast persons aged 30-34,  2036: 689 Forecast persons aged 25-29,  2036: 648 Forecast persons aged 20-24,  2036: 644 Forecast persons aged 15-19,  2036: 773 Forecast persons aged 10-14,  2036: 801 Forecast persons aged 5-9,  2036: 757 Forecast persons aged 0-4,  2036: 679 Forecast persons aged 85+,  2026: 289 Forecast persons aged 80-84,  2026: 324 Forecast persons aged 75-79,  2026: 419 Forecast persons aged 70-74,  2026: 500 Forecast persons aged 65-69,  2026: 634 Forecast persons aged 60-64,  2026: 700 Forecast persons aged 55-59,  2026: 731 Forecast persons aged 50-54,  2026: 727 Forecast persons aged 45-49,  2026: 742 Forecast persons aged 40-44,  2026: 772 Forecast persons aged 35-39,  2026: 716 Forecast persons aged 30-34,  2026: 688 Forecast persons aged 25-29,  2026: 656 Forecast persons aged 20-24,  2026: 654 Forecast persons aged 15-19,  2026: 779 Forecast persons aged 10-14,  2026: 752 Forecast persons aged 5-9,  2026: 751 Forecast persons aged 0-4,  2026: 682 Forecast persons aged 85+,  2016: 203 Forecast persons aged 80-84,  2016: 217 Forecast persons aged 75-79,  2016: 335 Forecast persons aged 70-74,  2016: 435 Forecast persons aged 65-69,  2016: 498 Forecast persons aged 60-64,  2016: 548 Forecast persons aged 55-59,  2016: 726 Forecast persons aged 50-54,  2016: 824 Forecast persons aged 45-49,  2016: 853 Forecast persons aged 40-44,  2016: 768 Forecast persons aged 35-39,  2016: 668 Forecast persons aged 30-34,  2016: 708 Forecast persons aged 25-29,  2016: 637 Forecast persons aged 20-24,  2016: 768 Forecast persons aged 15-19,  2016: 883 Forecast persons aged 10-14,  2016: 809 Forecast persons aged 5-9,  2016: 813 Forecast persons aged 0-4,  2016: 612
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, October 2017.
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: 67 Forecast persons aged 80-84,  2026 to 2036: 50 Forecast persons aged 75-79,  2026 to 2036: 103 Forecast persons aged 70-74,  2026 to 2036: 112 Forecast persons aged 65-69,  2026 to 2036: 16 Forecast persons aged 60-64,  2026 to 2036: -47 Forecast persons aged 55-59,  2026 to 2036: -50 Forecast persons aged 50-54,  2026 to 2036: 16 Forecast persons aged 45-49,  2026 to 2036: 40 Forecast persons aged 40-44,  2026 to 2036: 21 Forecast persons aged 35-39,  2026 to 2036: 31 Forecast persons aged 30-34,  2026 to 2036: 1 Forecast persons aged 25-29,  2026 to 2036: -8 Forecast persons aged 20-24,  2026 to 2036: -10 Forecast persons aged 15-19,  2026 to 2036: -6 Forecast persons aged 10-14,  2026 to 2036: 48 Forecast persons aged 5-9,  2026 to 2036: 7 Forecast persons aged 0-4,  2026 to 2036: -3 Forecast persons aged 85+,  2016 to 2026: 86 Forecast persons aged 80-84,  2016 to 2026: 107 Forecast persons aged 75-79,  2016 to 2026: 84 Forecast persons aged 70-74,  2016 to 2026: 65 Forecast persons aged 65-69,  2016 to 2026: 136 Forecast persons aged 60-64,  2016 to 2026: 152 Forecast persons aged 55-59,  2016 to 2026: 5 Forecast persons aged 50-54,  2016 to 2026: -97 Forecast persons aged 45-49,  2016 to 2026: -111 Forecast persons aged 40-44,  2016 to 2026: 4 Forecast persons aged 35-39,  2016 to 2026: 48 Forecast persons aged 30-34,  2016 to 2026: -20 Forecast persons aged 25-29,  2016 to 2026: 19 Forecast persons aged 20-24,  2016 to 2026: -114 Forecast persons aged 15-19,  2016 to 2026: -104 Forecast persons aged 10-14,  2016 to 2026: -57 Forecast persons aged 5-9,  2016 to 2026: -62 Forecast persons aged 0-4,  2016 to 2026: 70
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, October 2017.

Key findings

In 2016, the dominant age structure for persons in Woodcroft was ages 15 to 19, which accounted for 7.8% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 60 to 64, which is expected to increase by 152 and account for 6.1% of the total persons.

The largest 5 year age group in 2026 is 15 to 19 years, with a total of 779 persons.

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