Washington County Chamber of Commerce 20 East Beau Street, Washington, PA 15301, 724-225-3010, Provides visitor and relocation information for Washington County. Also involved in the economic development of Washington County. more...

Washington County Tourism Promotion Agency 273 South Main Street, Washington, PA 15301, 724-228-5520, 866-WASH-WOW, Offers information on local interests and activities. more... 

Washington County Historical Society 49 Maiden Street, Washington, PA 15301, 724-225-6740, Teaches and preserves the county's history. Located in the historic LeMoyne House. more...

Genealogical Society of Southwestern Pennsylvania P.O. Box 894, 55 South College Street, Washington, PA 15301, 724-222-7022, Primarily concentrates on the genealogical records of Southwestern Pennsylvania and preserves documents from Washington County. more...