City of Canterbury BankstownPopulation forecast
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Sefton

Population and age structure

Between 2016 and 2026, the age structure forecasts for Sefton indicate a 1.3% increase in population under working age, a 26.0% increase in population of retirement age, and a 2.8% 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 City of Canterbury Bankstown 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
Sefton - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 44417.44286.84966.7+55
5 to 94367.34527.25247.1+88
10 to 144647.84787.65637.7+99
15 to 195038.44727.55397.3+35
20 to 244667.84226.74816.5+15
25 to 293796.33846.14476.1+68
30 to 343876.53755.94386.0+51
35 to 393706.23876.14566.2+86
40 to 443355.64096.54766.5+140
45 to 494457.43966.34446.0-1
50 to 543856.43685.84466.1+61
55 to 593616.04246.74285.8+67
60 to 642544.23575.73655.0+111
65 to 692484.13265.23875.3+138
70 to 741672.82283.63144.3+147
75 to 791282.11812.92433.3+115
80 to 841061.81151.81732.3+66
85 and over1091.81051.71421.9+32
Total persons5,985100.06,306100.07,361100.0+1,377

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: 142 Forecast persons aged 80-84,  2036: 173 Forecast persons aged 75-79,  2036: 243 Forecast persons aged 70-74,  2036: 314 Forecast persons aged 65-69,  2036: 387 Forecast persons aged 60-64,  2036: 365 Forecast persons aged 55-59,  2036: 428 Forecast persons aged 50-54,  2036: 446 Forecast persons aged 45-49,  2036: 444 Forecast persons aged 40-44,  2036: 476 Forecast persons aged 35-39,  2036: 456 Forecast persons aged 30-34,  2036: 438 Forecast persons aged 25-29,  2036: 447 Forecast persons aged 20-24,  2036: 481 Forecast persons aged 15-19,  2036: 539 Forecast persons aged 10-14,  2036: 563 Forecast persons aged 5-9,  2036: 524 Forecast persons aged 0-4,  2036: 496 Forecast persons aged 85+,  2026: 105 Forecast persons aged 80-84,  2026: 115 Forecast persons aged 75-79,  2026: 181 Forecast persons aged 70-74,  2026: 228 Forecast persons aged 65-69,  2026: 326 Forecast persons aged 60-64,  2026: 357 Forecast persons aged 55-59,  2026: 424 Forecast persons aged 50-54,  2026: 368 Forecast persons aged 45-49,  2026: 396 Forecast persons aged 40-44,  2026: 409 Forecast persons aged 35-39,  2026: 387 Forecast persons aged 30-34,  2026: 375 Forecast persons aged 25-29,  2026: 384 Forecast persons aged 20-24,  2026: 422 Forecast persons aged 15-19,  2026: 472 Forecast persons aged 10-14,  2026: 478 Forecast persons aged 5-9,  2026: 452 Forecast persons aged 0-4,  2026: 428 Forecast persons aged 85+,  2016: 109 Forecast persons aged 80-84,  2016: 106 Forecast persons aged 75-79,  2016: 128 Forecast persons aged 70-74,  2016: 167 Forecast persons aged 65-69,  2016: 248 Forecast persons aged 60-64,  2016: 254 Forecast persons aged 55-59,  2016: 361 Forecast persons aged 50-54,  2016: 385 Forecast persons aged 45-49,  2016: 445 Forecast persons aged 40-44,  2016: 335 Forecast persons aged 35-39,  2016: 370 Forecast persons aged 30-34,  2016: 387 Forecast persons aged 25-29,  2016: 379 Forecast persons aged 20-24,  2016: 466 Forecast persons aged 15-19,  2016: 503 Forecast persons aged 10-14,  2016: 464 Forecast persons aged 5-9,  2016: 436 Forecast persons aged 0-4,  2016: 441
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: 37 Forecast persons aged 80-84,  2026 to 2036: 58 Forecast persons aged 75-79,  2026 to 2036: 62 Forecast persons aged 70-74,  2026 to 2036: 85 Forecast persons aged 65-69,  2026 to 2036: 61 Forecast persons aged 60-64,  2026 to 2036: 9 Forecast persons aged 55-59,  2026 to 2036: 4 Forecast persons aged 50-54,  2026 to 2036: 78 Forecast persons aged 45-49,  2026 to 2036: 47 Forecast persons aged 40-44,  2026 to 2036: 67 Forecast persons aged 35-39,  2026 to 2036: 70 Forecast persons aged 30-34,  2026 to 2036: 64 Forecast persons aged 25-29,  2026 to 2036: 63 Forecast persons aged 20-24,  2026 to 2036: 59 Forecast persons aged 15-19,  2026 to 2036: 67 Forecast persons aged 10-14,  2026 to 2036: 85 Forecast persons aged 5-9,  2026 to 2036: 72 Forecast persons aged 0-4,  2026 to 2036: 68 Forecast persons aged 85+,  2016 to 2026: -5 Forecast persons aged 80-84,  2016 to 2026: 9 Forecast persons aged 75-79,  2016 to 2026: 53 Forecast persons aged 70-74,  2016 to 2026: 61 Forecast persons aged 65-69,  2016 to 2026: 77 Forecast persons aged 60-64,  2016 to 2026: 103 Forecast persons aged 55-59,  2016 to 2026: 63 Forecast persons aged 50-54,  2016 to 2026: -17 Forecast persons aged 45-49,  2016 to 2026: -49 Forecast persons aged 40-44,  2016 to 2026: 74 Forecast persons aged 35-39,  2016 to 2026: 17 Forecast persons aged 30-34,  2016 to 2026: -12 Forecast persons aged 25-29,  2016 to 2026: 5 Forecast persons aged 20-24,  2016 to 2026: -44 Forecast persons aged 15-19,  2016 to 2026: -32 Forecast persons aged 10-14,  2016 to 2026: 14 Forecast persons aged 5-9,  2016 to 2026: 16 Forecast persons aged 0-4,  2016 to 2026: -13
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 Sefton was ages 15 to 19, which accounted for 8.4% 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 103 and account for 5.7% of the total persons.

The largest 5 year age group in 2026 is 10 to 14 years, with a total of 478 persons.

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