Northern Beaches CouncilPopulation forecast
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Allambie Heights

Population and age structure

Between 2016 and 2026, the age structure forecasts for Allambie Heights indicate a 4.6% decrease in population under working age, a 11.2% increase in population of retirement age, and a 3.4% 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 Northern Beaches Council area 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
Allambie Heights - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 44656.44856.55156.5+50
5 to 95958.25166.95537.0-42
10 to 145237.25096.85296.7+6
15 to 194476.14886.54665.9+19
20 to 243584.93654.93654.6+7
25 to 292333.22743.72913.7+57
30 to 342613.63244.33354.3+74
35 to 394656.44736.34986.3+33
40 to 446018.35407.25787.3-23
45 to 495898.15237.05416.9-48
50 to 544676.44966.64726.0+6
55 to 594496.24626.24315.5-18
60 to 643464.84155.54405.6+94
65 to 693975.54125.54365.5+39
70 to 743364.63084.13804.8+44
75 to 792613.63284.43714.7+110
80 to 842383.32673.62863.6+48
85 and over2423.33244.33744.8+132
Total persons7,274100.07,509100.07,860100.0+586

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

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 374 Forecast persons aged 80-84,  2036: 286 Forecast persons aged 75-79,  2036: 371 Forecast persons aged 70-74,  2036: 380 Forecast persons aged 65-69,  2036: 436 Forecast persons aged 60-64,  2036: 440 Forecast persons aged 55-59,  2036: 431 Forecast persons aged 50-54,  2036: 472 Forecast persons aged 45-49,  2036: 541 Forecast persons aged 40-44,  2036: 578 Forecast persons aged 35-39,  2036: 498 Forecast persons aged 30-34,  2036: 335 Forecast persons aged 25-29,  2036: 291 Forecast persons aged 20-24,  2036: 365 Forecast persons aged 15-19,  2036: 466 Forecast persons aged 10-14,  2036: 529 Forecast persons aged 5-9,  2036: 553 Forecast persons aged 0-4,  2036: 515 Forecast persons aged 85+,  2026: 324 Forecast persons aged 80-84,  2026: 267 Forecast persons aged 75-79,  2026: 328 Forecast persons aged 70-74,  2026: 308 Forecast persons aged 65-69,  2026: 412 Forecast persons aged 60-64,  2026: 415 Forecast persons aged 55-59,  2026: 462 Forecast persons aged 50-54,  2026: 496 Forecast persons aged 45-49,  2026: 523 Forecast persons aged 40-44,  2026: 540 Forecast persons aged 35-39,  2026: 473 Forecast persons aged 30-34,  2026: 324 Forecast persons aged 25-29,  2026: 274 Forecast persons aged 20-24,  2026: 365 Forecast persons aged 15-19,  2026: 488 Forecast persons aged 10-14,  2026: 509 Forecast persons aged 5-9,  2026: 516 Forecast persons aged 0-4,  2026: 485 Forecast persons aged 85+,  2016: 242 Forecast persons aged 80-84,  2016: 238 Forecast persons aged 75-79,  2016: 261 Forecast persons aged 70-74,  2016: 336 Forecast persons aged 65-69,  2016: 397 Forecast persons aged 60-64,  2016: 346 Forecast persons aged 55-59,  2016: 449 Forecast persons aged 50-54,  2016: 467 Forecast persons aged 45-49,  2016: 589 Forecast persons aged 40-44,  2016: 601 Forecast persons aged 35-39,  2016: 465 Forecast persons aged 30-34,  2016: 261 Forecast persons aged 25-29,  2016: 233 Forecast persons aged 20-24,  2016: 358 Forecast persons aged 15-19,  2016: 447 Forecast persons aged 10-14,  2016: 523 Forecast persons aged 5-9,  2016: 595 Forecast persons aged 0-4,  2016: 465
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, November 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: 49 Forecast persons aged 80-84,  2026 to 2036: 19 Forecast persons aged 75-79,  2026 to 2036: 44 Forecast persons aged 70-74,  2026 to 2036: 72 Forecast persons aged 65-69,  2026 to 2036: 24 Forecast persons aged 60-64,  2026 to 2036: 26 Forecast persons aged 55-59,  2026 to 2036: -31 Forecast persons aged 50-54,  2026 to 2036: -24 Forecast persons aged 45-49,  2026 to 2036: 18 Forecast persons aged 40-44,  2026 to 2036: 37 Forecast persons aged 35-39,  2026 to 2036: 25 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: 1 Forecast persons aged 15-19,  2026 to 2036: -22 Forecast persons aged 10-14,  2026 to 2036: 20 Forecast persons aged 5-9,  2026 to 2036: 37 Forecast persons aged 0-4,  2026 to 2036: 30 Forecast persons aged 85+,  2016 to 2026: 82 Forecast persons aged 80-84,  2016 to 2026: 29 Forecast persons aged 75-79,  2016 to 2026: 66 Forecast persons aged 70-74,  2016 to 2026: -28 Forecast persons aged 65-69,  2016 to 2026: 15 Forecast persons aged 60-64,  2016 to 2026: 68 Forecast persons aged 55-59,  2016 to 2026: 13 Forecast persons aged 50-54,  2016 to 2026: 30 Forecast persons aged 45-49,  2016 to 2026: -67 Forecast persons aged 40-44,  2016 to 2026: -61 Forecast persons aged 35-39,  2016 to 2026: 8 Forecast persons aged 30-34,  2016 to 2026: 63 Forecast persons aged 25-29,  2016 to 2026: 41 Forecast persons aged 20-24,  2016 to 2026: 6 Forecast persons aged 15-19,  2016 to 2026: 41 Forecast persons aged 10-14,  2016 to 2026: -14 Forecast persons aged 5-9,  2016 to 2026: -79 Forecast persons aged 0-4,  2016 to 2026: 20
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, November 2017.

Key findings

In 2016, the dominant age structure for persons in Allambie Heights was ages 40 to 44, which accounted for 8.3% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 85 and over, which is expected to increase by 82 and account for 4.3% of the total persons.

The largest 5 year age group in 2026 is 40 to 44 years, with a total of 540 persons.

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