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Wollongong City CouncilPopulation forecast

Wollongong City Council

Population and age structure

Between 2021 and 2031, the age structure forecasts for Wollongong City Council indicate a 7.4% increase in population under working age, a 22.6% increase in population of retirement age, and a 9.3% 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 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
Wollongong City Council - Total persons202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 412,3525.813,5935.717,1635.9+4,811
5 to 912,8456.014,1315.917,7186.1+4,873
10 to 1413,1426.113,4705.616,7595.7+3,616
15 to 1913,2026.214,7716.217,1535.9+3,951
20 to 2416,0397.518,3207.719,9816.8+3,942
25 to 2914,7256.917,1417.219,7746.8+5,049
30 to 3414,1986.615,8946.619,6176.7+5,419
35 to 3913,6776.415,0946.320,2756.9+6,598
40 to 4413,0926.115,2816.419,2916.6+6,199
45 to 4913,7426.414,4946.118,3136.3+4,572
50 to 5412,9166.013,3035.616,9795.8+4,064
55 to 5913,2456.213,4615.615,8955.4+2,649
60 to 6412,5785.912,4915.214,6925.0+2,114
65 to 6910,6695.012,7305.313,1364.5+2,466
70 to 749,6764.511,2334.712,6734.3+2,998
75 to 797,3773.48,9873.810,8843.7+3,508
80 to 845,5342.67,4463.19,8113.4+4,277
85 and over5,6282.67,2843.011,6824.0+6,054
Total persons214,637100.0239,125100.0291,797100.0+77,160
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), April 2024.

Key findings

In 2021, the dominant age structure for persons in Wollongong City Council was ages 20 to 24, which accounted for 7.5% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 25 to 29, which is expected to increase by 2,416 and account for 7.2% of the total persons.

The largest 5 year age group in 2031 is 20 to 24 years, with a total of 18,320 persons.

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