Lewis County is a county located in the U.S. state of Kentucky. As of the 2020 census, the population was 13,080. Its county seat is Vanceburg.

Kentucky's 4th congressional district is a congressional district in the U.S. state of Kentucky. Located in the northeastern portion of the state, it is a long district that follows the Ohio River. However, the district is dominated by its far western portion, comprising the eastern suburbs of Louisville and Northern Kentucky, the Kentucky side of the Cincinnati area.