Umatilla County, Oregon GenealogyEdit This Page

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United States Gotoarrow.png Oregon Gotoarrow.png Umatilla County


County Courthouse
216 SE Fourth Street
Pendleton, Or 97801

  • Records Held at the Courthouse

County Records Inventory listing the records held at the Umatilla County Court House as of June 2005.

  • Record Loss:

Quick Facts

Wikipedia has more about this subject: Umatilla County, Oregon

27 September 1862: Umatilla county was created from Wasco County. [1]

Named after the Umatilla River. The name Umatilla is derived from the Native American name for the river, which was first recorded as Youmalolam in the journals of the Lewis and Clark Expedition.

Boundary Changes

14 October 1864: Grant

16 February 1885: Morrow County set off.

Places / Localities

Populated Places


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Adams | Athena | Echo | Helix | Hermiston | Milton-Freewater | Pendleton | Pilot Rock | Stanfield | Ukiah | Umatilla | Weston


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Cayuse | Gopher Flats | Holdman | Kirkpatrick | Meacham | Mission | Ordnance | Riverside | Tutuilla

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Defunct Post Offices


Indian Reservation

Umatilla (Confederated Tribes of Umatilla - specifically Sahaptin-speaking Cayuse, Umatilla and Walla Walla tribes)

Neighboring Counties

Grant | Morrow | Union | Wallowa | Washington counties: Benton | Columbia | Walla Walla

Trivia Tidbits

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



Trivia Tidbits: Little biographic bits associated with the names of non-population localities.



  • 1870
  • 1880
  • 1890
  • 1900
  • 1910
  • 1920
  • 1930

Church History and Records

Court Records

Emigration and Immigration

Land and Property





Probate Records

Rivers and Waterways

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


Vital Records

Societies, Libraries and Museums



  1. WorldCat 50140092FHL Collection Handybook for Genealogists: United States of America, 10th ed.] (Draper, Utah: Everton Pub., 2002)


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