Madison County is a county located in the central part of the U.S. state of Kentucky. At the 2020 census, its population was 92,701. Its county seat is Richmond. The county is named for Virginia statesman James Madison, who later became the fourth President of the United States. The county is part of the Richmond-Berea, KY Micropolitan Statistical Area which is also included in the Lexington-Fayette–Richmond–Frankfort, KY combined statistical area.