Cities included in Washington County: Washington, Canonsburg, California, Donora, Charleroi, Monongahela, McGovern, McMurray, Thompsonville, Centerville, Wolfdale, Gastonville, Cecil-Bishop, Muse, Bentleyville, New Eagle, McDonald, Baidland, East Washington, Wickerham Manor-Fisher, North Charleroi, Burgettstown, Houston, West Brownsville, Speers, Lawrence, Avella, Claysville, Cokeburg, Langeloth, Paris, Deemston, Hickory, Roscoe, Eighty Four, Ellsworth, Atlasburg, Slovan, Wylandville, Marianna, Van Voorhis, Long Branch, Beallsville, Southview, Joffre, Dunlevy, Millsboro, West Alexander, Meadowlands, Bulger, Elrama, Stockdale, Elco, Finleyville, Taylorstown, Twilight, Fredericktown, Coal Center, Hendersonville, West Middletown, Westland, Green Hills

Zip Codes included in Washington County: 15004, 15019, 15021, 15022, 15033, 15038, 15053, 15054, 15055, 15057, 15060, 15063, 15067, 15078, 15301, 15311, 15312, 15313, 15314, 15317, 15321, 15323, 15324, 15329, 15330, 15331, 15332, 15333, 15340, 15342, 15345, 15347, 15348, 15350, 15358, 15360, 15361, 15363, 15365, 15366, 15367, 15368, 15376, 15377, 15378, 15379, 15412, 15417, 15419, 15423, 15427, 15429, 15432, 15434, 15477, 15483