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Wollongong City CouncilPopulation forecast

Marshall Mount - Haywards Bay - Yallah

Population and age structure

Between 2021 and 2031, the age structure forecasts for Marshall Mount - Haywards Bay - Yallah indicate a 32.4% increase in males under working age, a 51.9% increase in males of retirement age, and a 26.0% 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 Wollongong City Council 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
Marshall Mount - Haywards Bay - Yallah - Total males202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 4415.1958.93968.8+355
5 to 9668.1878.23988.8+333
10 to 14728.8555.22826.2+210
15 to 19678.3656.12726.0+205
20 to 24617.5868.12986.6+237
25 to 29182.2868.13167.0+298
30 to 34394.8817.63507.8+311
35 to 39718.7767.13738.3+302
40 to 44637.8706.63477.7+284
45 to 49546.6585.52976.6+243
50 to 54445.4484.52455.4+201
55 to 59485.9494.62034.5+156
60 to 64658.0494.61914.2+126
65 to 69404.9484.51663.7+126
70 to 74324.0353.31393.1+107
75 to 79273.3272.51022.3+76
80 to 8450.6272.5751.7+70
85 and over00.0212.0591.3+59
Total persons811100.01,064100.04,509100.0+3,698
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), April 2024.

Key findings

In 2021, the dominant age structure for males in Marshall Mount - Haywards Bay - Yallah was ages 10 to 14, which accounted for 8.8% of the total males.

The largest increase in males between 2021 and 2031 is forecast to be in ages 25 to 29, which is expected to increase by 68 and account for 8.1% of the total males.

The largest male 5 year age group in 2031 is 0 to 4 years, with a total of 95 males.

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