Pennsylvania House of Representatives District 183 is located in the Lehigh Valley in southeastern Pennsylvania. It spans across Northampton and Lehigh counties. In Lehigh County, it encompasses Slatington Borough, North Whitehall Township, and Lowhill Township. In Northampton County, it encompasses Northampton Borough, North Catasauqua Borough, Bath Borough, Walnutport Borough, Lehigh Township, Allen Township, East Allen Township, and Moore Township (Part: Precincts of Beersville and Klecknersville).