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Population Review

What is the largest city in Illinois?

Chicago city is the largest city in Illinois with a population of 2,707,648, according to Census ACS 5-Year. Aurora city is second with 179,867.

Context

Illinois has 224 tracked cities of 10,000+ residents. The largest cities serve as economic and cultural centers, often with higher incomes and more diverse populations than surrounding rural areas.

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Chicago city is the largest city in Illinois with a population of 2,707,648, according to Census ACS 5-Year. Aurora city is second with 179,867.