High Quality Content by WIKIPEDIA articles! Madison County is a county located in the U.S. state of Kentucky. As of 2008, the population was 82,192. Its county seat is Richmond. The county is named for Virginia statesman James Madison, who later became the fourth President of the United States. This is also where famous pioneer Daniel Boone lived and built Fort Boonesborough, now a state historic site. Madison County is part of the Richmond-Berea micropolitan area.