Wasco County, Oregon Genealogy

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United States Gotoarrow.png Oregon Gotoarrow.png Wasco County

County Courthouse


511 Washington Street, Room 201
The Dalles, Oregon 97058
(541) 506-2530 Phone

A wiki article describing an online collection is found at;

Oregon, Wasco County Records (FamilySearch Historical Records )

Wasco County Information

Wikipedia has more about this subject: Wasco County, Oregon

Boundary Changes

11 January 1854: Wasco county was created from Clackamas, Douglas, Jackson, Lane, Linn, and Marion Counties . Named for the Wasco (or Wascopam), a Chinook tribe on the south side. (Ore. Terr. Special Laws 1853, 5th reg. sess., pp. 26-27), [1]
14 January 1857: Gained very small area near the head of Eagle Creek and Bradford's Island from Multnomah [change too small to map]. (Ore. Terr. Laws 1856-1857, 8th reg. sess., pp. 78-79)
14 February 1859: Lost to Washington Territory when the United States created the state of Oregon from Oregon Territory. (U.S. Stat., vol. 11, ch. 33[1859], secs. 1-2/pp. 383-384 Ore. Laws 1860, 1st reg. sess., pp. 28-30)
22 September 1862:
Lost to creation of Baker. (Ore. Laws 1862, 2nd reg. sess., p. 112)
27 September 1862: Lost to creation of Umatilla. (Ore. Laws 1862, 2nd reg. sess., p. 91)
14 October 1864:
Lost to creation of Grant. (Ore. Laws 1864, 3rd reg. sess., p. 43)
24 October 1874: Lost to creation of [[[Lake County, Oregon|Lake]]. (Ore. Laws 1874, 8th reg. sess., pp. 38-41)
24 October 1882: Lost to creation of Crook. (Ore. Special Laws 1882, 12th reg. sess., p. 178)
16 February 1885:
Lost to creation of Morrow. (Ore. Special Laws 1885, 13th reg. sess., pp. 239-243)
25 February 1885: Lost to creation of Gilliam. Creation left a small strip of Wasco County along the southeastern line of Gilliam which remained until gained by Gilliam County on 20 February 1891. (Ore. Special Laws 1885, 13th reg. sess., p. 404)
25 February 1889: Lost to creation of Sherman. (Ore. Laws 1889, gen., 15th reg. sess., p. 82)
19 February 1891:
Lost more land to Sherman. (Ore. Laws 1891, gen., 16th reg. sess., pp. 68-69)
20 February 1891: Lost to Gilliam. The gain was a small strip that was inadvertently separated from Wasco County when Gilliam County was created on 25 February 1885. (Ore. Laws 1891, gen., 16th reg. sess., p. 76)
25 February 1895:
Boundary with Multnomah adjusted within Section 22 of Township 2 North, Range 7 East [change too small to map]. (Ore. Laws 1895, 18th reg. sess., p. 88)
23 June 1908:
Lost to creation of Hood River. (Ore. Laws 1909, gen., 25th reg. sess., ch. 5/pp. 39-43)
25 February 1925: Boundaries redefined [no change]. (Ore. Laws 1925, gen., 33rd reg. sess., ch. 108/p. 164)
13 September 1967:
Redefined to substitute "boundary of the state" for middle of the main channel of the Columbia River. Approved by the Governor 19 June 1967, became effective 13 Sep 1967 [no change]. (Ore. Laws 1967, 54th reg. sess., ch. 421/pp. 930-931)

  • Records Held at the Courthouse

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

  • Record Loss:

Places / Localities

Populated Places

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Antelope | Dufur | Maupin | Mosier | Shaniko | The Dalles

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Boyd | Chenoweth | Friend | Pine Hollow | Pine Grove | Rice | Rowena | Tygh Valley | Wamic

Neighboring Counties

Clackamas | Gilliam | Hood River | Jefferson | Marion | Sherman | Wheeler | Klickitat, Washington

Trivia Tidbits

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





  • 1860
  • 1870
  • 1880
  • 1890
  • 1900
  • 1910
  • 1920
  • 1930

Church History and Records

Court Records



Land and Property



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

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

Many early marriages are listed on the Western States Marriage Index.

Societies, Libraries and Museums

Family History Centers



  1. WorldCat 50140092FHL Collection Handybook for Genealogists: United States of America, 10th ed.] (Draper, Utah: Everton Pub., 2002)
  2. Jim Tompkins, "The Oregon Trail 1841-1848 Map VI" in Oregon Trail Landmarks at http://www.oregonpioneers.com/OTMap6.jpg (accessed 18 July 2011).