What is the population of Decatur city, IL?
Decatur city, IL has a population of 70,368, according to Census ACS 5-Year estimates. The median age is 39.9 and the median household income is $50,809.
Context
Decatur city is located in Illinois. City population reflects residents within municipal boundaries, not the broader metropolitan area, which often includes several million more people.
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Decatur city, IL has a population of 70,368, according to Census ACS 5-Year estimates. The median age is 39.9 and the median household income is $50,809.