Umatilla County, Oregon Genealogy

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United States
Umatilla County

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


Umatilla County, Oregon
Map of Oregon highlighting Umatilla County
Location in the state of Oregon
Map of the U.S. highlighting Oregon
Location of Oregon in the U.S.
Founded September 27, 1862
County Seat Pendleton
Address Umatilla County Courthouse
216 SE 4th Street
Pendleton, Or 97801-2590
Phone: 541-276-7111
Umatilla County Website

County Information


The County was named for the Umatilla River. The County is located in the northeast area of the state. [1]

Umatilla County, Oregon Record Dates

Beginning Dates for Major County Records
Birth Marriage Death Census Land Probate
1890 1862 1870 1861 1863

County Courthouse

County Clerk has marriage, divorce, probate, court and land records from 1862. [2]

Umatilla County Government

County Records Inventory listing the records held at the Umatilla County Court House as of August 2010.

Umatilla County Court is structured differently. Check the County Records Inventory link for addresses for location of records (left column).

Record Loss

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

Historical Facts

27 September 1862: Umatilla county was created from Wasco County. [3]

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.

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

Places / Localities

Populated Places

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:[4]

Unincorporated communities
Native American communities
Census-designated places
Historic communities
Ghost towns

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.


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


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

Church History and Records

Court Records

Emigration and Immigration

Land and Property



Wallowa CountyUnion CountyMorrow CountyGrant CountyBenton CountyWalla Walla CountyColumbia CountyOR UMATILLA.PNG
About this image
Click a neighboring county
for more resources


Early migration routes to and from Umatilla County, Oregon Genealogy for European and African American settlers included:


Civil War

World War I


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

Probate Records

Online Records

Rivers and Waterways

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


Vital Records

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

Umatilla County record of deaths 1907-1929, certificates of death 1913-1944

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

Delayed Birth Certificates

Birth Registers

Marriage Records

  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

Societies, Libraries and Museums

Umatilla County Historical Society
108 S W Frazer
PO Box 253
Pendleton 97801
Telephone: 541-276-0012

Family History Centers

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. See family history center for more information. Search the online FHC directory for a nearby family history center.


Umatilla County Oregon Genealogy References

  1. Wikipedia contributors, "Umatilla, Oregon" in,_Oregon accessed 29 Nov 2018
  2. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Umatilla County, Oregon page 574, At various libraries (WorldCat); FHL Book 973 D27e 2002.
  3. WorldCat 50140092; FHL Collection Handybook for Genealogists: United States of America, 10th ed.] (Draper, Utah: Everton Pub., 2002)
  4. Wikipedia contributors, "Umatilla County, Oregon" in Wikipedia: the Free Encyclopedia,,_Oregon, accessed 2 January 2019.
  5. Jim Tompkins, "The Oregon Trail 1841-1848 Map VI" in Oregon Trail Landmarks at (accessed 18 July 2011).