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Broken Bay

Population and age structure

Between 2011 and 2026, the age structure forecasts for Broken Bay indicate a 1.6% increase in population under working age, a 30.0% increase in population of retirement age, and a 2.5% 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 Gosford City 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
Broken Bay - Total persons201120262036Change between 2011 and 2036
Age group (years)Number%Number%Number%Number
0 to 4 2243.83014.82944.6+70
5 to 9 2584.42614.22624.1+4
10 to 14 3405.82734.42854.5-55
15 to 19 3275.62624.22854.5-42
20 to 24 2664.52243.62273.5-39
25 to 29 1672.92113.42003.1+33
30 to 34 2053.52443.92433.8+38
35 to 39 3225.53335.33395.3+17
40 to 44 3215.53455.53625.7+41
45 to 49 4377.53615.83846.0-53
50 to 54 4708.03986.44036.3-67
55 to 59 4808.24537.34717.4-9
60 to 64 4988.55739.25498.6+51
65 to 69 5028.66189.95769.0+74
70 to 74 3335.75308.55598.7+226
75 to 79 2704.63856.24406.9+170
80 to 84 2484.22694.33034.7+55
85 and over1913.32053.32193.4+28
Total persons5,859100.06,246100.06,402100.0+543

Population and household forecasts, 2011 to 2036, prepared by .id , the population experts, September 2014.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 219 Forecast persons aged 80-84,  2036: 303 Forecast persons aged 75-79,  2036: 440 Forecast persons aged 70-74,  2036: 559 Forecast persons aged 65-69,  2036: 576 Forecast persons aged 60-64,  2036: 549 Forecast persons aged 55-59,  2036: 471 Forecast persons aged 50-54,  2036: 403 Forecast persons aged 45-49,  2036: 384 Forecast persons aged 40-44,  2036: 362 Forecast persons aged 35-39,  2036: 339 Forecast persons aged 30-34,  2036: 243 Forecast persons aged 25-29,  2036: 200 Forecast persons aged 20-24,  2036: 227 Forecast persons aged 15-19,  2036: 285 Forecast persons aged 10-14,  2036: 285 Forecast persons aged 5-9,  2036: 262 Forecast persons aged 0-4,  2036: 294 Forecast persons aged 85+,  2026: 205 Forecast persons aged 80-84,  2026: 269 Forecast persons aged 75-79,  2026: 385 Forecast persons aged 70-74,  2026: 530 Forecast persons aged 65-69,  2026: 618 Forecast persons aged 60-64,  2026: 573 Forecast persons aged 55-59,  2026: 453 Forecast persons aged 50-54,  2026: 398 Forecast persons aged 45-49,  2026: 361 Forecast persons aged 40-44,  2026: 345 Forecast persons aged 35-39,  2026: 333 Forecast persons aged 30-34,  2026: 244 Forecast persons aged 25-29,  2026: 211 Forecast persons aged 20-24,  2026: 224 Forecast persons aged 15-19,  2026: 262 Forecast persons aged 10-14,  2026: 273 Forecast persons aged 5-9,  2026: 261 Forecast persons aged 0-4,  2026: 301 Forecast persons aged 85+,  2011: 191 Forecast persons aged 80-84,  2011: 248 Forecast persons aged 75-79,  2011: 270 Forecast persons aged 70-74,  2011: 333 Forecast persons aged 65-69,  2011: 502 Forecast persons aged 60-64,  2011: 498 Forecast persons aged 55-59,  2011: 480 Forecast persons aged 50-54,  2011: 470 Forecast persons aged 45-49,  2011: 437 Forecast persons aged 40-44,  2011: 321 Forecast persons aged 35-39,  2011: 322 Forecast persons aged 30-34,  2011: 205 Forecast persons aged 25-29,  2011: 167 Forecast persons aged 20-24,  2011: 266 Forecast persons aged 15-19,  2011: 327 Forecast persons aged 10-14,  2011: 340 Forecast persons aged 5-9,  2011: 258 Forecast persons aged 0-4,  2011: 224
Population and household forecasts, 2011 to 2036, prepared by .id the population experts, September 2014.
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: 13 Forecast persons aged 80-84,  2026 to 2036: 34 Forecast persons aged 75-79,  2026 to 2036: 55 Forecast persons aged 70-74,  2026 to 2036: 30 Forecast persons aged 65-69,  2026 to 2036: -42 Forecast persons aged 60-64,  2026 to 2036: -24 Forecast persons aged 55-59,  2026 to 2036: 18 Forecast persons aged 50-54,  2026 to 2036: 5 Forecast persons aged 45-49,  2026 to 2036: 23 Forecast persons aged 40-44,  2026 to 2036: 17 Forecast persons aged 35-39,  2026 to 2036: 6 Forecast persons aged 30-34,  2026 to 2036: -1 Forecast persons aged 25-29,  2026 to 2036: -11 Forecast persons aged 20-24,  2026 to 2036: 3 Forecast persons aged 15-19,  2026 to 2036: 23 Forecast persons aged 10-14,  2026 to 2036: 13 Forecast persons aged 5-9,  2026 to 2036: 1 Forecast persons aged 0-4,  2026 to 2036: -6 Forecast persons aged 85+,  2011 to 2026: 14 Forecast persons aged 80-84,  2011 to 2026: 21 Forecast persons aged 75-79,  2011 to 2026: 115 Forecast persons aged 70-74,  2011 to 2026: 197 Forecast persons aged 65-69,  2011 to 2026: 116 Forecast persons aged 60-64,  2011 to 2026: 75 Forecast persons aged 55-59,  2011 to 2026: -27 Forecast persons aged 50-54,  2011 to 2026: -72 Forecast persons aged 45-49,  2011 to 2026: -76 Forecast persons aged 40-44,  2011 to 2026: 24 Forecast persons aged 35-39,  2011 to 2026: 11 Forecast persons aged 30-34,  2011 to 2026: 39 Forecast persons aged 25-29,  2011 to 2026: 44 Forecast persons aged 20-24,  2011 to 2026: -42 Forecast persons aged 15-19,  2011 to 2026: -65 Forecast persons aged 10-14,  2011 to 2026: -67 Forecast persons aged 5-9,  2011 to 2026: 3 Forecast persons aged 0-4,  2011 to 2026: 77
Population and household forecasts, 2011 to 2036, prepared by .id the population experts, September 2014.

Key findings

In 2011, the dominant age structure for persons in Broken Bay was ages 65 to 69 , which accounted for 8.6% of the total persons.

The largest increase in persons between 2011 and 2026 is forecast to be in ages 70 to 74 , which is expected to increase by 197 and account for 8.5% of the total persons.

The largest 5 year age group in 2026 is 65 to 69 years, with a total of 618 persons.

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