Pennsylvania's 14th congressional district is located in the southwestern part of the state and includes all of Fayette County, Greene County, and Washington County, and most of Indiana, Westmoreland, and Somerset counties. It is represented by Republican Guy Reschenthaler.

Fayette County is a county in the Commonwealth of Pennsylvania. It is located in southwestern Pennsylvania, adjacent to Maryland and West Virginia. As of the 2020 census, the population was 128,804. Its county seat is Uniontown. The county was created on September 26, 1783, from part of Westmoreland County and named after the Marquis de Lafayette. The county is part of the Southwest Pennsylvania region of the state.