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Washington County, Oregon Genealogy

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Guide to Washington County, Oregon ancestry, family history, and genealogy birth records, marriage records, death records, census records, family history, and military records.


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Washington County, Oregon
Map
Map of Oregon highlighting Washington County
Location in the state of Oregon
Map of the U.S. highlighting Oregon
Location of Oregon in the U.S.
Facts
Founded September 3, 1849
County Seat Hillsboro
Courthouse
Address Washington County Courthouse
155 N 1st Avenue Ste 130
Hillsboro, OR 97124-3072
Phone: 503.864.8741
Washington County Website



County Information[edit | edit source]

Description[edit | edit source]

The County was named for George Washington. The County is located in the northwest area of the state. [1]

Washington County, Oregon Record Dates[edit | edit source]

Known Beginning Dates for Major County Records[2]
Birth* Marriage Death* Court Land Probate Census
1907 1842 1903 1844 1847 1842 1845
Statewide registration for births and deaths in 1903. General compliance year unknown.

County Courthouse[edit | edit source]

Record Section, Assessment & Taxation has marriage,
land and military records from 1850.
Clerk Circuit Court has divorce and court records
from 1896, probate records from 1871 and
naturalization records from 1906. [3]


  • Records Held at the Courthouse

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

Record Loss[edit | edit source]

There is no known history of courthouse disasters in this county.

Quick Facts[edit | edit source]

3 September 1849: Washington county was renamed from Twality County. Named for George Washington, the first president of the United States. [4]

Boundary Changes[edit | edit source]

16 January 1854: Columbia County set off.

22 December 1854: Multnomah County set off.

For animated maps illustrating Oregon County boundary changes, "Rotating Formation Oregon County Boundary Maps" (1843-1975) may be viewed for free at the MapofUS.org website.

Places / Localities[edit | edit source]

Populated Places[edit | edit source]

For a complete list of populated places, including small neighborhoods and suburbs, visit HomeTown Locator.

The following are the most historically and genealogically relevant populated places in this county:[5]

Cities
Unincorporated communities
Census-designated places
Historic communities

Defunct Post Offices[edit | edit source]

  • Albion: Albion post office was in service on the extreme north border of the county from March 17, 1902 to Dec. 31, 1908. It was about due south of Vernonia. George M. Holt was the only postmaster. George M. Holt came from Albion, Illinois and he named the office for his old home in the Midwest. FamilySearch Catalog

Neighboring Counties[edit | edit source]

Clackamas | Clatsop | Columbia | Multnomah | Tillamook | Yamhill

Trivia Tidbits[edit | edit source]

Information about localities, too small or too brief to describe in separate pages. Exception to this are Post Offices. > Trivia Tidbits

Resources[edit | edit source]

Archives and Libraries[edit | edit source]

Biography[edit | edit source]

Cemeteries[edit | edit source]

Tombstone Transcriptions Online Tombstone Transcriptions in Print List of Cemeteries in the county
Findagrave.com Family History Library Findagrave.com
ORGenWeb WorldCat Billion Graves
ORGenWeb Archives
Tombstone Project
ORInterment
ORGravestones
EPodunk
Billion Graves
See Oregon Cemeteries for more information.

Census[edit | edit source]

  • 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

Church History and Records[edit | edit source]

Court Records[edit | edit source]

Gazetteers[edit | edit source]

History[edit | edit source]

Land and Property[edit | edit source]

Maps[edit | edit source]

WashingtonMultnomah CountyClackamas CountyYamhill CountyTillamook CountyClatsop CountyColumbia CountyOR WASHINGTON.PNG
Click a neighboring county
for more resources


Military History and Records[edit | edit source]

Civil War[edit | edit source]

World War I[edit | edit source]

Newspapers[edit | edit source]

Oregon Online Historical Newspapers - identifies historical archived and digitized newspapers available online on both free and pay-to-access websites.


Historic Oregon Newspapers as a division of the Oregon Digital Newspaper Program has digitzied more than 644,000 pages of newspapers throughout Oregon. Dates range from 1846-1922 with selected issues continuing through 1973.

Of particular interest to Washington county researchers:


The Banner-Courier (Beaverton)
The Owl (Beaverton)
The Argus (Hilsboro)
The Hilsboro Argus (Hilsboro)
Hilsboro Independent (Hilsboro)
Washington County Independent (Hilsboro)

Probate Records[edit | edit source]

Online Records

Rivers and Waterways[edit | edit source]

Details about the rivers and waterways where farms and settlements are often found along them. > Rivers and Waterways

School Records[edit | edit source]

Taxation[edit | edit source]

Vital Records[edit | edit source]

The Family History Library has copies of some records such as:

Washington County coroner's inquest records 1854-1889

See also How to order Oregon Vital Records, order electronically online or download an application for Oregon Birth Certificate, Marriage Certificate, Divorce Certificate, Death Certificate Application to mail.

Birth Records[edit | edit source]

Delayed Birth Certificates


Birth Registers

Marriage Records[edit | edit source]

  1. 1826-1975 - Oregon, United States Marriages at FindMyPast — index $
  2. Extractions of early marriages are listed on the Western States Marriage Index
  3. Marriage Index 1885-1896 Actually is a book of affiants reporting the marriages. Historical Records Collection

Death Records[edit | edit source]

Societies, Libraries and Museums[edit | edit source]

Washington County Historical Society
120 E Main St
Hillsboro, OR 97124
Telephone: 503-645-5353
Website

Washington County Historical Society & Museum
17677 NW Springville Rd
Portland, OR 97229
Telephone: 503-645-5353
Website

Beaverton Historical Society and History Center
12490 S W First
Beaverton, OR 97005
Telephone: 503-430-0160
Website

Family History Centers[edit | edit source]

Family History Centers provide one-on-one assistance and free access to premium genealogical websites. In addition, many centers have free how-to genealogy classes.

Websites[edit | edit source]

Washington County Oregon Genealogy References[edit | edit source]

  1. Wikipedia contributors, "Washington, Oregon" in https://en.wikipedia.org/wiki/Washington_County,_Oregon accessed 29 Nov 2018
  2. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Washington County, Oregon . Page 572-574 At various libraries (WorldCat); FHL Book 973 D27e 2002; Alice Eichholz, ed. Ancestry’s Red Book: American State, County, and Town Sources, Third ed. (Provo, Utah: Ancestry, 2004), 563-564.
  3. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Washington County, Oregon page 574, At various libraries (WorldCat); FHL Book 973 D27e 2002.
  4. WorldCat 50140092FamilySearch Catalog Handybook for Genealogists: United States of America, 10th ed.] (Draper, Utah: Everton Pub., 2002)
  5. Wikipedia contributors, "Washington County, Oregon" in Wikipedia: the Free Encyclopedia, https://en.wikipedia.org/wiki/Washington_County,_Oregon, accessed 20 January 2019.