City of PlayfordPopulation forecast
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Smithfield Plains

Population and age structure

Between 2016 and 2026, the age structure forecasts for Smithfield Plains indicate a 13.0% increase in population under working age, a 37.9% increase in population of retirement age, and a 4.6% 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 Playford 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
Smithfield Plains - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 4 30410.72989.63049.50
5 to 9 2709.52939.42869.0+16
10 to 14 1816.42628.42537.9+72
15 to 19 1756.22377.62437.6+67
20 to 24 2659.42367.62688.4+3
25 to 29 2729.62819.02979.3+25
30 to 34 2549.02688.62578.1+4
35 to 39 1756.22096.72066.5+32
40 to 44 1615.71605.11615.10
45 to 49 1475.21284.11404.4-7
50 to 54 1445.11374.41364.3-8
55 to 59 1144.01254.01133.5-1
60 to 64 1063.71153.71113.5+5
65 to 69 1144.01023.31103.4-4
70 to 74 662.3973.11053.3+39
75 to 79 541.9872.8862.7+32
80 to 84 120.4441.4652.0+53
85 and over180.6341.1501.6+32
Total persons2,834100.03,113100.03,192100.0+358

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

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 50 Forecast persons aged 80-84,  2036: 65 Forecast persons aged 75-79,  2036: 86 Forecast persons aged 70-74,  2036: 105 Forecast persons aged 65-69,  2036: 110 Forecast persons aged 60-64,  2036: 111 Forecast persons aged 55-59,  2036: 113 Forecast persons aged 50-54,  2036: 136 Forecast persons aged 45-49,  2036: 140 Forecast persons aged 40-44,  2036: 161 Forecast persons aged 35-39,  2036: 206 Forecast persons aged 30-34,  2036: 257 Forecast persons aged 25-29,  2036: 297 Forecast persons aged 20-24,  2036: 268 Forecast persons aged 15-19,  2036: 243 Forecast persons aged 10-14,  2036: 253 Forecast persons aged 5-9,  2036: 286 Forecast persons aged 0-4,  2036: 304 Forecast persons aged 85+,  2026: 34 Forecast persons aged 80-84,  2026: 44 Forecast persons aged 75-79,  2026: 87 Forecast persons aged 70-74,  2026: 97 Forecast persons aged 65-69,  2026: 102 Forecast persons aged 60-64,  2026: 115 Forecast persons aged 55-59,  2026: 125 Forecast persons aged 50-54,  2026: 137 Forecast persons aged 45-49,  2026: 128 Forecast persons aged 40-44,  2026: 160 Forecast persons aged 35-39,  2026: 209 Forecast persons aged 30-34,  2026: 268 Forecast persons aged 25-29,  2026: 281 Forecast persons aged 20-24,  2026: 236 Forecast persons aged 15-19,  2026: 237 Forecast persons aged 10-14,  2026: 262 Forecast persons aged 5-9,  2026: 293 Forecast persons aged 0-4,  2026: 298 Forecast persons aged 85+,  2016: 18 Forecast persons aged 80-84,  2016: 12 Forecast persons aged 75-79,  2016: 54 Forecast persons aged 70-74,  2016: 66 Forecast persons aged 65-69,  2016: 114 Forecast persons aged 60-64,  2016: 106 Forecast persons aged 55-59,  2016: 114 Forecast persons aged 50-54,  2016: 144 Forecast persons aged 45-49,  2016: 147 Forecast persons aged 40-44,  2016: 161 Forecast persons aged 35-39,  2016: 175 Forecast persons aged 30-34,  2016: 254 Forecast persons aged 25-29,  2016: 272 Forecast persons aged 20-24,  2016: 265 Forecast persons aged 15-19,  2016: 175 Forecast persons aged 10-14,  2016: 181 Forecast persons aged 5-9,  2016: 270 Forecast persons aged 0-4,  2016: 304
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, December 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: 16 Forecast persons aged 80-84,  2026 to 2036: 21 Forecast persons aged 75-79,  2026 to 2036: -1 Forecast persons aged 70-74,  2026 to 2036: 8 Forecast persons aged 65-69,  2026 to 2036: 7 Forecast persons aged 60-64,  2026 to 2036: -4 Forecast persons aged 55-59,  2026 to 2036: -12 Forecast persons aged 50-54,  2026 to 2036: -1 Forecast persons aged 45-49,  2026 to 2036: 13 Forecast persons aged 40-44,  2026 to 2036: 1 Forecast persons aged 35-39,  2026 to 2036: -3 Forecast persons aged 30-34,  2026 to 2036: -11 Forecast persons aged 25-29,  2026 to 2036: 16 Forecast persons aged 20-24,  2026 to 2036: 32 Forecast persons aged 15-19,  2026 to 2036: 5 Forecast persons aged 10-14,  2026 to 2036: -9 Forecast persons aged 5-9,  2026 to 2036: -7 Forecast persons aged 0-4,  2026 to 2036: 6 Forecast persons aged 85+,  2016 to 2026: 16 Forecast persons aged 80-84,  2016 to 2026: 32 Forecast persons aged 75-79,  2016 to 2026: 33 Forecast persons aged 70-74,  2016 to 2026: 31 Forecast persons aged 65-69,  2016 to 2026: -12 Forecast persons aged 60-64,  2016 to 2026: 9 Forecast persons aged 55-59,  2016 to 2026: 11 Forecast persons aged 50-54,  2016 to 2026: -7 Forecast persons aged 45-49,  2016 to 2026: -20 Forecast persons aged 40-44,  2016 to 2026: -1 Forecast persons aged 35-39,  2016 to 2026: 34 Forecast persons aged 30-34,  2016 to 2026: 14 Forecast persons aged 25-29,  2016 to 2026: 8 Forecast persons aged 20-24,  2016 to 2026: -29 Forecast persons aged 15-19,  2016 to 2026: 62 Forecast persons aged 10-14,  2016 to 2026: 81 Forecast persons aged 5-9,  2016 to 2026: 23 Forecast persons aged 0-4,  2016 to 2026: -6
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, December 2017.

Key findings

In 2016, the dominant age structure for persons in Smithfield Plains was ages 0 to 4 , which accounted for 10.7% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 10 to 14 , which is expected to increase by 81 and account for 8.4% of the total persons.

The largest 5 year age group in 2026 is 0 to 4 years, with a total of 298 persons.

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