Washington County, Pennsylvania Genealogy

United States &gt; Pennsylvania &gt; Washington County

County Courthouse
1 South Main St. Washington, PA 15301 (724) 228-6787

Directions

History
Named for General George Washington of the American Revolutionary War.

Parent County
28 March 1781: Washington County was created from Westmoreland County.

Boundary Changes
Note: Washington County was claimed by both Virginia and Pennsylvania until the Mason-Dixon Line was finalized in 1767.


 * 27 Jan 1750: Part of Cumberland County.
 * 9 March 1771: Became part of Bedford County when it was was erected.
 * 26 January 1773: The future county became part of Westmoreland County.
 * 24 September 1788: Allegheny County set off.
 * 9 February 1796: Greene County set off.
 * 12 March 1800: Beaver County set off.

Neighboring Counties
Allegheny | Beaver | Fayette | Greene | Westmoreland | West Virginia counties: Brooke | Hancock | Marshall | Ohio

Land

 * Ancestor Tracks has published Early Landowners of Pennsylvania: Atlas of Township Warrantee Maps of Washington County which contains all of the Township Warrantee Maps on file at the Pennsylvania Archives in Harrisburg. thus pinpointing the location of the earliest landowners of the county. Each Township Warrantee Map was painstakingly platted by draftsmen from the original warrants, surveys, and patents of the first settlers of the county within its current boundaries.

Societies and Libraries

 * Genealogical Society of Southwestern Pennsylvania
 * Western Pennsylvania Genealogical Society

Web Sites

 * Linkpendium - Washington County
 * USGenWeb project
 * Family History Library Catalog