Frankfort is a village in Will and Cook counties, Illinois, United States. The population was 17,782 at the 2010 census.
First inhabited by Native Americans, including the Potawatomi and Sac and Fox tribes, Frankfort was used as a conduit between the Des Plaines and St. Joseph rivers.William Rice, the first non-native settler, made a permanent settlement in Frankfort in 1831. While the first pioneers, coming mainly from the New England colonies, were mostly of English and Scottish descent, German settlers made the village of Frankfort a reality.In 1879, the village of Frankfort was incorporated, and elected John McDonald as the first Village President. Along with the establishment of the government, among the first undertakings of the newly formed administration was the institution of land use policies.