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Central Coast NSWPopulation forecast

Wadalba

Population and age structure

Between 2021 and 2031, the age structure forecasts for Wadalba indicate a 7.1% decrease in males under working age, a 47.1% increase in males of retirement age, and a 22.5% increase in males 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 Central Coast NSW 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.

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Forecast age structure - 5 year age groups
Wadalba - Total males202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 423210.82078.33618.3+129
5 to 92069.61937.73357.7+130
10 to 141808.41747.03067.0+127
15 to 191888.71907.63016.9+114
20 to 241175.51837.32806.4+163
25 to 291286.01787.12886.6+160
30 to 341878.71807.23227.4+135
35 to 391707.91897.63588.2+188
40 to 441245.81726.93207.3+195
45 to 491175.41596.32846.5+167
50 to 541336.21405.62585.9+125
55 to 59753.51275.12165.0+141
60 to 64843.91034.11824.2+98
65 to 69833.9933.71473.4+63
70 to 74552.5793.21373.2+83
75 to 79512.4622.51162.7+65
80 to 8490.4421.7791.8+70
85 and over100.5301.2611.4+51
Total persons2,151100.02,500100.04,353100.0+2,202
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), May 2024.

Key findings

In 2021, the dominant age structure for males in Wadalba was ages 0 to 4, which accounted for 10.8% of the total males.

The largest increase in males between 2021 and 2031 is forecast to be in ages 20 to 24, which is expected to increase by 65 and account for 7.3% of the total males.

The largest male 5 year age group in 2031 is 0 to 4 years, with a total of 207 males.

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