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Umatilla County, OR

Umatilla CountyEstablished: Sept. 27, 1862
Population: 71,100 (2003)
Elev. at Pendleton: 1,068'
Area: 3,231 sq. mi.
Average Temp.: January 31.9°, July 73.6°
Assessed Value: $3,519,742,905
Real Market Value: $4,305,267,692
Annual Precipitation: 12.97"
Economy: Agriculture, food processing, forest products, tourism, manufacturing, recreation, aggregate production and power generation.

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

Points of Interest: Pendleton Round-Up, Pendleton Woolen Mills, Old Town Pendleton, County Historical Society, Pendleton Underground, McNary Dam and Recreation Area, Echo Museum and Historic Area, Hat Rock, Battle Mountain and Emigrant Springs State Parks, Weston Historic District, Frazier Farmstead Museum in Milton-Freewater, N. Fork Umatilla Wilderness Area, Tollgate-Spout Springs Recreation Area, Courthouse Clock Tower, Confederated Tribes of the Umatilla Indian Reservation’s Wildhorse Casino and Tamastslikt Cultural Center.

General Information: Umatilla County traces its creation in 1862 to the regional gold rushes, which spawned the riverport of Umatilla City and brought stockraisers to the lush grasslands.

Although Lewis and Clark and the Oregon Trail pioneers passed through Umatilla County, it did not bloom until the arrival of the railroad in 1881 and the development of dryland wheat farming.

Water in the form of irrigation has been key to economic diversification and growth, most recently in the Hermiston area, where the desert now yields lush watermelons and other products. Tourism is also increasingly important to Umatilla County where “Let-er-Buck” is heard by Pendleton Round-Up crowds.

County Officials: Commissioners—Dennis D. Doherty (NP) 2009, William S. Hansell (NP) 2007, Emile M. Holeman (NP) 2007; Dist. Atty. Christopher Brower (NP) 2009; Assess. Paul Chalmers; Sheriff John Trumbo (NP) 2009; Surv. Dave Krumbein; Financial Mgr. Robert Pahl; Co. Admin. Jim Barrow.
 
County History
 Umatilla County was created on September 27, 1862, out of a portion of Wasco County. Umatilla is an Indian term meaning "rippling water" or "water rippling over sand" and has provided the name both for the county and its major river. Adjustments were made to the county's boundaries following the creation of Grant, Morrow, Union, and Wallowa Counties. The county contains 3,231 square miles and is bounded by the Columbia River on the north, Morrow County on the west, Grant County on the south, and Union and Wallowa Counties on the east.

The legislative act that created Umatilla County designated Marshall Station as the temporary county seat. Umatilla City was chosen the county seat in an 1865 election. Population shifted to the north and east parts of the county due to the opening of the Pendleton area to wheat production. A subsequent election in 1868 resulted in the selection of Pendleton as the new county seat, supplanting both Marshall Station and Umatilla City.

The first courthouse was completed in 1866 in Umatilla City. The next courthouse, and the first built in Pendleton, was a wooden, two-story structure completed in 1869. In 1889 a three-story brick courthouse and jail was erected. A fourth courthouse was built on the site of the old courthouse in 1956 and is still in use today.

The government of Umatilla County consisted originally of a county judge, two county commissioners, clerk, and sheriff. The offices of treasurer, assessor, coroner, and superintendent of schools were added a short time after formation of the county. The county judge position was abolished and a third commissioner was added in 1975.

The first census of the Umatilla County in 1870 counted 2,916 inhabitants. The population has increased steadily with a 2000 census figure of 70,548 representing an increase of 19.07% over 1990.

The Umatilla Indian Reservation was established by the Treaty of Walla Walla in 1855. It became an 800 square mile home for the Umatillas, Walla Wallas, and Cayuse tribes and is located immediately southeast of Pendleton. The Umatilla Confederated Tribes have 1,400 enrolled members.

Lewis and Clark and pioneers traveling the Oregon Trail passed through the area. The gold rush of 1862 brought miners and stock raisers to the mountains and grasslands of Umatilla County. The county expanded after the coming of the railroad in 1881 and the area was open to the development of dry land wheat farming. The fertile land of Umatilla County gives a strongly agricultural base to the county's economy. Fruit, grain, timber, cattle, and sheep are important agricultural products. Recreation, primarily in the Blue Mountains, and tourism, most notably for the annual Pendleton Round-Up rodeo, are also important to the local economy.

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