Washington County, Oregon Genealogy

United States &gt; Oregon &gt; Washington County

County Courthouse
http://www.co.washington.or.us/cgi/home/washco.pl

155 N. First Avenue, Suite 300 Hillsboro, OR 97124 (503) 846-8685


 * Records Held at the Courthouse

County Records Inventory listing the records held at the Washington County Court House as of October 2005.


 * Record Loss:

Quick Facts
Wikipedia

3 September 1849: Washington county was renamed from Twality County.

Named for George Washington, the first president of the United States.

Boundary Changes
16 January 1854: Columbia County set off. 22 December 1854: Multnomah County set off.

Cities
Banks | Beaverton | Cornelius | Durham | Forest Grove | Gaston | Hillsboro | King City | Lake Oswego | North Plains | Portland | Rivergrove | Sherwood | Tigard | Tualatin | Wilsonville

Neighboring Counties
Clackamas | Clatsop | Columbia | Multnomah | Tillamook | Yamhill

Resources
Census


 * 1845 Territorial Transcription and Index (under name of Tuality, Twalatain and Twality County)
 * 1849 Territorial Transcription and Index (under name of Twality County)
 * 1850 Territorial Transcription and Index
 * 1853 Territorial Transcription and Index
 * 1856 Territorial Transcription and Index

Genealogy Websites
The Washington County GenWeb Project, part of The ORGenWeb Project, a state project affiliated with The USGenWeb Project.