Sutherland Shire CouncilPopulation forecast
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Illawong

Population and age structure

Between 2016 and 2026, the age structure forecasts for Illawong indicate a 19.6% increase in population under working age, a 50.8% increase in population of retirement age, and a 15.1% 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 Sutherland Shire 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
Illawong - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 44055.34686.14325.6+28
5 to 93835.05407.05046.5+122
10 to 144786.35066.65467.1+68
15 to 195276.95146.75887.6+61
20 to 245987.95006.55146.7-84
25 to 294736.23514.63514.6-122
30 to 344125.43164.13033.9-109
35 to 393985.23514.63314.3-67
40 to 444546.04155.43985.2-56
45 to 494776.34686.14585.9-20
50 to 545907.75146.74996.5-91
55 to 596798.94836.34846.3-195
60 to 646047.95116.74706.1-134
65 to 694696.25427.14245.5-44
70 to 742603.44636.04145.4+154
75 to 791912.53444.54085.3+217
80 to 84911.21842.43074.0+216
85 and over1321.71912.52733.5+141
Total persons7,619100.07,662100.07,704100.0+85

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: 273 Forecast persons aged 80-84,  2036: 307 Forecast persons aged 75-79,  2036: 408 Forecast persons aged 70-74,  2036: 414 Forecast persons aged 65-69,  2036: 424 Forecast persons aged 60-64,  2036: 470 Forecast persons aged 55-59,  2036: 484 Forecast persons aged 50-54,  2036: 499 Forecast persons aged 45-49,  2036: 458 Forecast persons aged 40-44,  2036: 398 Forecast persons aged 35-39,  2036: 331 Forecast persons aged 30-34,  2036: 303 Forecast persons aged 25-29,  2036: 351 Forecast persons aged 20-24,  2036: 514 Forecast persons aged 15-19,  2036: 588 Forecast persons aged 10-14,  2036: 546 Forecast persons aged 5-9,  2036: 504 Forecast persons aged 0-4,  2036: 432 Forecast persons aged 85+,  2026: 191 Forecast persons aged 80-84,  2026: 184 Forecast persons aged 75-79,  2026: 344 Forecast persons aged 70-74,  2026: 463 Forecast persons aged 65-69,  2026: 542 Forecast persons aged 60-64,  2026: 511 Forecast persons aged 55-59,  2026: 483 Forecast persons aged 50-54,  2026: 514 Forecast persons aged 45-49,  2026: 468 Forecast persons aged 40-44,  2026: 415 Forecast persons aged 35-39,  2026: 351 Forecast persons aged 30-34,  2026: 316 Forecast persons aged 25-29,  2026: 351 Forecast persons aged 20-24,  2026: 500 Forecast persons aged 15-19,  2026: 514 Forecast persons aged 10-14,  2026: 506 Forecast persons aged 5-9,  2026: 540 Forecast persons aged 0-4,  2026: 468 Forecast persons aged 85+,  2016: 132 Forecast persons aged 80-84,  2016: 91 Forecast persons aged 75-79,  2016: 191 Forecast persons aged 70-74,  2016: 260 Forecast persons aged 65-69,  2016: 469 Forecast persons aged 60-64,  2016: 604 Forecast persons aged 55-59,  2016: 679 Forecast persons aged 50-54,  2016: 590 Forecast persons aged 45-49,  2016: 477 Forecast persons aged 40-44,  2016: 454 Forecast persons aged 35-39,  2016: 398 Forecast persons aged 30-34,  2016: 412 Forecast persons aged 25-29,  2016: 473 Forecast persons aged 20-24,  2016: 598 Forecast persons aged 15-19,  2016: 527 Forecast persons aged 10-14,  2016: 478 Forecast persons aged 5-9,  2016: 383 Forecast persons aged 0-4,  2016: 405
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: 82 Forecast persons aged 80-84,  2026 to 2036: 123 Forecast persons aged 75-79,  2026 to 2036: 64 Forecast persons aged 70-74,  2026 to 2036: -49 Forecast persons aged 65-69,  2026 to 2036: -118 Forecast persons aged 60-64,  2026 to 2036: -42 Forecast persons aged 55-59,  2026 to 2036: 1 Forecast persons aged 50-54,  2026 to 2036: -14 Forecast persons aged 45-49,  2026 to 2036: -11 Forecast persons aged 40-44,  2026 to 2036: -18 Forecast persons aged 35-39,  2026 to 2036: -20 Forecast persons aged 30-34,  2026 to 2036: -13 Forecast persons aged 25-29,  2026 to 2036: 0 Forecast persons aged 20-24,  2026 to 2036: 14 Forecast persons aged 15-19,  2026 to 2036: 74 Forecast persons aged 10-14,  2026 to 2036: 40 Forecast persons aged 5-9,  2026 to 2036: -36 Forecast persons aged 0-4,  2026 to 2036: -36 Forecast persons aged 85+,  2016 to 2026: 59 Forecast persons aged 80-84,  2016 to 2026: 93 Forecast persons aged 75-79,  2016 to 2026: 153 Forecast persons aged 70-74,  2016 to 2026: 203 Forecast persons aged 65-69,  2016 to 2026: 74 Forecast persons aged 60-64,  2016 to 2026: -92 Forecast persons aged 55-59,  2016 to 2026: -196 Forecast persons aged 50-54,  2016 to 2026: -77 Forecast persons aged 45-49,  2016 to 2026: -9 Forecast persons aged 40-44,  2016 to 2026: -38 Forecast persons aged 35-39,  2016 to 2026: -47 Forecast persons aged 30-34,  2016 to 2026: -96 Forecast persons aged 25-29,  2016 to 2026: -122 Forecast persons aged 20-24,  2016 to 2026: -98 Forecast persons aged 15-19,  2016 to 2026: -13 Forecast persons aged 10-14,  2016 to 2026: 28 Forecast persons aged 5-9,  2016 to 2026: 158 Forecast persons aged 0-4,  2016 to 2026: 63
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 Illawong was ages 55 to 59, which accounted for 8.9% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 70 to 74, which is expected to increase by 203 and account for 6.0% of the total persons.

The largest 5 year age group in 2026 is 65 to 69 years, with a total of 542 persons.

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