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City of Coffs HarbourPopulation forecast

Northern Beaches

Population and age structure

Between 2021 and 2031, the age structure forecasts for Northern Beaches indicate a 23.4% increase in population under working age, a 18.3% increase in population of retirement age, and a 13.1% 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 Coffs Harbour 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
Northern Beaches - Total persons202120312041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 42454.83816.44206.2+175
5 to 93657.14026.84486.6+83
10 to 142555.02844.83655.4+110
15 to 192635.12724.63024.5+39
20 to 242204.32364.02643.9+44
25 to 292344.62904.93234.8+89
30 to 343066.03255.53645.4+58
35 to 393116.13576.04096.0+98
40 to 443106.13936.64376.5+127
45 to 493346.54056.84606.8+126
50 to 543536.93906.64626.8+109
55 to 593296.43856.54516.7+122
60 to 643997.84076.94586.8+59
65 to 694528.84026.84656.9+13
70 to 743637.13876.54176.2+54
75 to 792013.93295.53154.7+114
80 to 841212.42093.52373.5+116
85 and over621.2921.51742.6+113
Total persons5,121100.05,946100.06,769100.0+1,648
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), May 2023.

Key findings

In 2021, the dominant age structure for persons in Northern Beaches was ages 65 to 69, which accounted for 8.8% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 0 to 4, which is expected to increase by 136 and account for 6.4% of the total persons.

The largest 5 year age group in 2031 is 60 to 64 years, with a total of 407 persons.

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