Northern Beaches CouncilPopulation forecast
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Balgowlah Heights - Clontarf

Population and age structure

Between 2016 and 2026, the age structure forecasts for Balgowlah Heights - Clontarf indicate a 4.8% decrease in population under working age, a 16.0% increase in population of retirement age, and a 1.9% 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
Balgowlah Heights - Clontarf - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 42675.03616.63836.8+117
5 to 94939.24418.04798.5-15
10 to 1455310.34488.14918.8-61
15 to 194177.74347.94177.40
20 to 242855.33416.23015.4+15
25 to 291472.71833.31893.4+42
30 to 34661.21723.11863.3+120
35 to 392093.93145.73305.9+121
40 to 444287.94167.64568.1+28
45 to 495359.94117.54598.2-76
50 to 545219.74047.34017.1-120
55 to 594257.93766.83105.5-115
60 to 642845.33286.02654.7-19
65 to 692695.02875.22594.6-11
70 to 741603.01963.62274.0+67
75 to 791031.91773.21923.4+89
80 to 84961.81021.91272.3+31
85 and over1262.31132.01402.5+14
Total persons5,385100.05,504100.05,611100.0+226

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: 140 Forecast persons aged 80-84,  2036: 127 Forecast persons aged 75-79,  2036: 192 Forecast persons aged 70-74,  2036: 227 Forecast persons aged 65-69,  2036: 259 Forecast persons aged 60-64,  2036: 265 Forecast persons aged 55-59,  2036: 310 Forecast persons aged 50-54,  2036: 401 Forecast persons aged 45-49,  2036: 459 Forecast persons aged 40-44,  2036: 456 Forecast persons aged 35-39,  2036: 330 Forecast persons aged 30-34,  2036: 186 Forecast persons aged 25-29,  2036: 189 Forecast persons aged 20-24,  2036: 301 Forecast persons aged 15-19,  2036: 417 Forecast persons aged 10-14,  2036: 491 Forecast persons aged 5-9,  2036: 479 Forecast persons aged 0-4,  2036: 383 Forecast persons aged 85+,  2026: 113 Forecast persons aged 80-84,  2026: 102 Forecast persons aged 75-79,  2026: 177 Forecast persons aged 70-74,  2026: 196 Forecast persons aged 65-69,  2026: 287 Forecast persons aged 60-64,  2026: 328 Forecast persons aged 55-59,  2026: 376 Forecast persons aged 50-54,  2026: 404 Forecast persons aged 45-49,  2026: 411 Forecast persons aged 40-44,  2026: 416 Forecast persons aged 35-39,  2026: 314 Forecast persons aged 30-34,  2026: 172 Forecast persons aged 25-29,  2026: 183 Forecast persons aged 20-24,  2026: 341 Forecast persons aged 15-19,  2026: 434 Forecast persons aged 10-14,  2026: 448 Forecast persons aged 5-9,  2026: 441 Forecast persons aged 0-4,  2026: 361 Forecast persons aged 85+,  2016: 126 Forecast persons aged 80-84,  2016: 96 Forecast persons aged 75-79,  2016: 103 Forecast persons aged 70-74,  2016: 160 Forecast persons aged 65-69,  2016: 269 Forecast persons aged 60-64,  2016: 284 Forecast persons aged 55-59,  2016: 425 Forecast persons aged 50-54,  2016: 521 Forecast persons aged 45-49,  2016: 535 Forecast persons aged 40-44,  2016: 428 Forecast persons aged 35-39,  2016: 209 Forecast persons aged 30-34,  2016: 66 Forecast persons aged 25-29,  2016: 147 Forecast persons aged 20-24,  2016: 285 Forecast persons aged 15-19,  2016: 417 Forecast persons aged 10-14,  2016: 553 Forecast persons aged 5-9,  2016: 493 Forecast persons aged 0-4,  2016: 267
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: 28 Forecast persons aged 80-84,  2026 to 2036: 25 Forecast persons aged 75-79,  2026 to 2036: 15 Forecast persons aged 70-74,  2026 to 2036: 30 Forecast persons aged 65-69,  2026 to 2036: -29 Forecast persons aged 60-64,  2026 to 2036: -64 Forecast persons aged 55-59,  2026 to 2036: -66 Forecast persons aged 50-54,  2026 to 2036: -3 Forecast persons aged 45-49,  2026 to 2036: 49 Forecast persons aged 40-44,  2026 to 2036: 40 Forecast persons aged 35-39,  2026 to 2036: 16 Forecast persons aged 30-34,  2026 to 2036: 14 Forecast persons aged 25-29,  2026 to 2036: 6 Forecast persons aged 20-24,  2026 to 2036: -40 Forecast persons aged 15-19,  2026 to 2036: -17 Forecast persons aged 10-14,  2026 to 2036: 43 Forecast persons aged 5-9,  2026 to 2036: 38 Forecast persons aged 0-4,  2026 to 2036: 23 Forecast persons aged 85+,  2016 to 2026: -14 Forecast persons aged 80-84,  2016 to 2026: 7 Forecast persons aged 75-79,  2016 to 2026: 74 Forecast persons aged 70-74,  2016 to 2026: 36 Forecast persons aged 65-69,  2016 to 2026: 18 Forecast persons aged 60-64,  2016 to 2026: 44 Forecast persons aged 55-59,  2016 to 2026: -49 Forecast persons aged 50-54,  2016 to 2026: -117 Forecast persons aged 45-49,  2016 to 2026: -125 Forecast persons aged 40-44,  2016 to 2026: -12 Forecast persons aged 35-39,  2016 to 2026: 105 Forecast persons aged 30-34,  2016 to 2026: 106 Forecast persons aged 25-29,  2016 to 2026: 35 Forecast persons aged 20-24,  2016 to 2026: 56 Forecast persons aged 15-19,  2016 to 2026: 17 Forecast persons aged 10-14,  2016 to 2026: -104 Forecast persons aged 5-9,  2016 to 2026: -53 Forecast persons aged 0-4,  2016 to 2026: 94
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 Balgowlah Heights - Clontarf was ages 10 to 14, which accounted for 10.3% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 30 to 34, which is expected to increase by 106 and account for 3.1% of the total persons.

The largest 5 year age group in 2026 is 10 to 14 years, with a total of 448 persons.

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