Jefferson County, Oregon Genealogy

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United States Gotoarrow.png Oregon Gotoarrow.png Jefferson County


Jefferson County, Oregon
Map of Oregon highlighting Jefferson County
Location in the state of Oregon
Map of the U.S. highlighting Oregon
Location of Oregon in the U.S.
Founded Decembr 12, 1914
County Seat Madras
Address Jefferson County Courthouse
75 SE C Street
Madras, Or 97741-1709
Phone: 541-475-4451
Jefferson County Website

County Courthouse

County Clerk has marriage, divorce, probate and land records from 1914. [1]

Jefferson County Government

County Records Inventory listing the records held at the Jefferson County Court House as of July 2011.

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

Confederated Tribes of Warm Springs maintain separate government.

  • Culver was the county seat 1914 to 1916
  • Record Loss:

Historical Facts

Wikipedia has more about this subject: Jefferson County, Oregon
Named for Mount Jefferson, located on west boundary. It was named in turn for Thomas Jefferson, third president of the United States of America by Lewis and Clark Expedition.

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

Parent County

12 Decembr 1914: Created from Crook County. [2]

Boundary Changes

Places / Localities

Populated Places


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Culver | Madras | Metolius


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Ashwood | Camp Sherman | Horse Heaven | Warm Springs

Indian Reservation

Warm Springs (Confederated Tribes of Warm Springs)

Neighboring Counties

Crook | Deschutes | Linn | Marion | Wasco | Wheeler

Trivia Tidbits

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


Cemeteries (rural area)

Gray Butte Cemetery


  • 1920
  • 1930

Church History and Records

Court Records



Land and Property


Military History and Records


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

Family History Centers



  1. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Jefferson County, Oregon page 573, At various libraries (WorldCat); FHL Book 973 D27e 2002.
  2. WorldCat 50140092; FHL Collection Handybook for Genealogists: United States of America, 10th ed.] (Draper, Utah: Everton Pub., 2002)