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Madison County
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Madison County is located in the U.S. state of Illinois. It is a part of the Metro East in Southern Illinois, known as "Little Egypt". According to the 2020 census, it had a population of 264,776, making it the eighth-most populous county in Illinois and the most populous in the southern portion of the state. The county seat is Edwardsville, and the largest city is Granite City.
Not who you're looking for? Others named Madison County: county in Idaho, United States · county in New York, United States · county in Missouri, United States · county in Indiana, United States