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List of counties in Oregon facts for kids

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Counties of Oregon
Location State of Oregon
Number 36
Populations 1,436 (Wheeler) – 789,698 (Multnomah)
Areas 435 square miles (1,130 km2) (Multnomah) – 10,135 square miles (26,250 km2) (Harney)
Government County government
Subdivisions cities, towns, townships, unincorporated communities, indian reservations, census designated place

Oregon is a beautiful state in the United States. It has 36 special areas called counties. Think of counties like smaller parts of the state, each with its own local government. These counties help manage things like roads, schools, and public safety for the people living there.

The way counties are set up in Oregon is a bit unique. The state's main rulebook, the Oregon Constitution, says that county leaders should have their offices in specific places and do their jobs as the law says. This helps make sure everything runs smoothly across the state.

You can learn more about how Oregon's places got their names in a book called Oregon Geographic Names. Oregon's short code is OR.

Oregon counties by date of establishment
Oregon counties by date of establishment      1840–1849      1850–1859      1860–1869      1870–1889      After 1890

Understanding Oregon's Counties

Each county in Oregon has a special code called a FIPS code. The United States government uses these codes to identify counties. You can use a FIPS code to find information about a specific county, like its population.

Oregon County Details and History

Here is a list of all 36 counties in Oregon. You can see when each county was created and how it got its name. Many counties are named after important people, Native American tribes, or natural features like rivers and mountains.

County
FIPS code County seat Est. Origin Etymology Population Area Map
Baker County 001 Baker City 1862 Eastern part of Wasco County Named for Edward Dickinson Baker, an Oregon senator who died in the American Civil War. &&&&&&&&&&016912.&&&&&016,912 &&&&&&&&&&&03068.&&&&&03,068 sq mi
(&&&&&&&&&&&07946.&&&&&07,946 km2)
State map highlighting Baker County
Benton County 003 Corvallis 1847 Polk County Named for Thomas Hart Benton, a U.S. senator who wanted the U.S. to control the Oregon Country. &&&&&&&&&&097713.&&&&&097,713 &&&&&&&&&&&&0676.&&&&&0676 sq mi
(&&&&&&&&&&&01751.&&&&&01,751 km2)
State map highlighting Benton County
Clackamas County 005 Oregon City 1843 One of Oregon Country's first four districts Named for the Clackamas Indians, a Native American tribe from the area. &&&&&&&&&0423173.&&&&&0423,173 &&&&&&&&&&&01868.&&&&&01,868 sq mi
(&&&&&&&&&&&04838.&&&&&04,838 km2)
State map highlighting Clackamas County
Clatsop County 007 Astoria 1844 Northern and western parts of the original Twality District Named for the Clatsop tribe of Native Americans who lived near the Pacific Ocean. &&&&&&&&&&041102.&&&&&041,102 &&&&&&&&&&&&0827.&&&&&0827 sq mi
(&&&&&&&&&&&02142.&&&&&02,142 km2)
State map highlighting Clatsop County
Columbia County 009 Saint Helens 1854 Northern half of Washington County Named for the Columbia River, which forms the county's northern border. &&&&&&&&&&053880.&&&&&053,880 &&&&&&&&&&&&0657.&&&&&0657 sq mi
(&&&&&&&&&&&01702.&&&&&01,702 km2)
State map highlighting Columbia County
Coos County 011 Coquille 1853 Western parts of Umpqua and Jackson Counties Named for the Coos Tribe of Native Americans who lived in this region. &&&&&&&&&&064212.&&&&&064,212 &&&&&&&&&&&01600.&&&&&01,600 sq mi
(&&&&&&&&&&&04144.&&&&&04,144 km2)
State map highlighting Coos County
Crook County 013 Prineville 1882 Southern part of Wasco County Named for George Crook, a U.S. Army officer who served in the American Civil War and Indian Wars. &&&&&&&&&&026952.&&&&&026,952 &&&&&&&&&&&02980.&&&&&02,980 sq mi
(&&&&&&&&&&&07718.&&&&&07,718 km2)
State map highlighting Crook County
Curry County 015 Gold Beach 1855 Coos County Named for George Law Curry, a governor of the Oregon Territory. &&&&&&&&&&023296.&&&&&023,296 &&&&&&&&&&&01627.&&&&&01,627 sq mi
(&&&&&&&&&&&04214.&&&&&04,214 km2)
State map highlighting Curry County
Deschutes County 017 Bend 1916 Southern part of Crook County Named for the Deschutes River. Its French name means "River of the Falls." &&&&&&&&&0208513.&&&&&0208,513 &&&&&&&&&&&03018.&&&&&03,018 sq mi
(&&&&&&&&&&&07817.&&&&&07,817 km2)
State map highlighting Deschutes County
Douglas County 019 Roseburg 1852 Part of Umpqua County east of the Coast Range Named for Stephen A. Douglas, a U.S. Senator who supported Oregon becoming a state. &&&&&&&&&0112435.&&&&&0112,435 &&&&&&&&&&&05037.&&&&&05,037 sq mi
(&&&&&&&&&&013046.&&&&&013,046 km2)
State map highlighting Douglas County
Gilliam County 021 Condon 1885 Eastern third of Wasco County Named for Cornelius Gilliam, a pioneer who led forces after the Whitman massacre. &&&&&&&&&&&02026.&&&&&02,026 &&&&&&&&&&&01204.&&&&&01,204 sq mi
(&&&&&&&&&&&03118.&&&&&03,118 km2)
State map highlighting Gilliam County
Grant County 023 Canyon City 1864 Parts of old Wasco and old Umatilla counties Named for Ulysses S. Grant, a general in the American Civil War and later President of the United States. &&&&&&&&&&&07215.&&&&&07,215 &&&&&&&&&&&04529.&&&&&04,529 sq mi
(&&&&&&&&&&011730.&&&&&011,730 km2)
State map highlighting Grant County
Harney County 025 Burns 1889 Southern two-thirds of Grant County Named for William S. Harney, a cavalry officer involved in the Pig War. &&&&&&&&&&&07440.&&&&&07,440 &&&&&&&&&&010135.&&&&&010,135 sq mi
(&&&&&&&&&&026250.&&&&&026,250 km2)
State map highlighting Harney County
Hood River County 027 Hood River 1908 Northwest part of Wasco County Named for the Hood River, which flows through the county. &&&&&&&&&&023745.&&&&&023,745 &&&&&&&&&&&&0522.&&&&&0522 sq mi
(&&&&&&&&&&&01352.&&&&&01,352 km2)
State map highlighting Hood River County
Jackson County 029 Medford 1852 Southwestern Lane County and unorganized area south of Douglas and Umpqua Counties. Named for Andrew Jackson, the seventh President of the United States. &&&&&&&&&0220768.&&&&&0220,768 &&&&&&&&&&&02785.&&&&&02,785 sq mi
(&&&&&&&&&&&07213.&&&&&07,213 km2)
State map highlighting Jackson County
Jefferson County 031 Madras 1914 Crook County Named for Mount Jefferson, which was named for Thomas Jefferson. &&&&&&&&&&025454.&&&&&025,454 &&&&&&&&&&&01781.&&&&&01,781 sq mi
(&&&&&&&&&&&04613.&&&&&04,613 km2)
State map highlighting Jefferson County
Josephine County 033 Grants Pass 1856 Western half of Jackson County Named for Virginia "Josephine" Rollins, the first white woman to live in this county. &&&&&&&&&&087821.&&&&&087,821 &&&&&&&&&&&01640.&&&&&01,640 sq mi
(&&&&&&&&&&&04248.&&&&&04,248 km2)
State map highlighting Josephine County
Klamath County 035 Klamath Falls 1882 Western part of Lake County Named for the Klamath tribe, who have lived here for 10,000 years. &&&&&&&&&&070003.&&&&&070,003 &&&&&&&&&&&05945.&&&&&05,945 sq mi
(&&&&&&&&&&015397.&&&&&015,397 km2)
State map highlighting Klamath County
Lake County 037 Lakeview 1874 Jackson and Wasco Counties Named for its many lakes and hot springs. &&&&&&&&&&&08293.&&&&&08,293 &&&&&&&&&&&07940.&&&&&07,940 sq mi
(&&&&&&&&&&020565.&&&&&020,565 km2)
State map highlighting Lake County
Lane County 039 Eugene 1851 Southern Linn County and part of Benton County east of Umpqua County Named for Gen. Joseph Lane, the first governor of Oregon Territory. &&&&&&&&&0381181.&&&&&0381,181 &&&&&&&&&&&04554.&&&&&04,554 sq mi
(&&&&&&&&&&011795.&&&&&011,795 km2)
State map highlighting Lane County
Lincoln County 041 Newport 1893 Western part of Benton County and Polk County Named for Abraham Lincoln, the sixteenth President of the United States. &&&&&&&&&&050821.&&&&&050,821 &&&&&&&&&&&&0980.&&&&&0980 sq mi
(&&&&&&&&&&&02538.&&&&&02,538 km2)
State map highlighting Lincoln County
Linn County 043 Albany 1847 Southern part of Champoeg (later Marion) County Named for U.S. Senator Lewis F. Linn, who helped settlers get free land in the West. &&&&&&&&&0131496.&&&&&0131,496 &&&&&&&&&&&02291.&&&&&02,291 sq mi
(&&&&&&&&&&&05934.&&&&&05,934 km2)
State map highlighting Linn County
Malheur County 045 Vale 1887 Southern part of Baker County Named for the Malheur River. Its French name means "Unfortunate River" because trappers lost their furs there. &&&&&&&&&&032044.&&&&&032,044 &&&&&&&&&&&09888.&&&&&09,888 sq mi
(&&&&&&&&&&025610.&&&&&025,610 km2)
State map highlighting Malheur County
Marion County 047 Salem 1843 One of the original four districts of the Oregon territory Named for Francis Marion, a general in the Revolutionary War. &&&&&&&&&0346741.&&&&&0346,741 &&&&&&&&&&&01185.&&&&&01,185 sq mi
(&&&&&&&&&&&03069.&&&&&03,069 km2)
State map highlighting Marion County
Morrow County 049 Heppner 1885 Western Umatilla County and a small part of eastern Wasco County Named for Jackson L. Morrow, a state representative who helped create the county. &&&&&&&&&&012302.&&&&&012,302 &&&&&&&&&&&02033.&&&&&02,033 sq mi
(&&&&&&&&&&&05265.&&&&&05,265 km2)
State map highlighting Morrow County
Multnomah County 051 Portland 1854 Eastern Washington and northern Clackamas counties Named for the Native American village of Multnomah. The name likely means "downriver." &&&&&&&&&0789698.&&&&&0789,698 &&&&&&&&&&&&0435.&&&&&0435 sq mi
(&&&&&&&&&&&01127.&&&&&01,127 km2)
State map highlighting Multnomah County
Polk County 053 Dallas 1845 Yamhill District Named for James Knox Polk, President of the United States when the county was created. &&&&&&&&&&089805.&&&&&089,805 &&&&&&&&&&&&0741.&&&&&0741 sq mi
(&&&&&&&&&&&01919.&&&&&01,919 km2)
State map highlighting Polk County
Sherman County 055 Moro 1889 Northeast corner of Wasco County Named for William Tecumseh Sherman, an American Civil War general. &&&&&&&&&&&01951.&&&&&01,951 &&&&&&&&&&&&0823.&&&&&0823 sq mi
(&&&&&&&&&&&02132.&&&&&02,132 km2)
State map highlighting Sherman County
Tillamook County 057 Tillamook 1853 Clatsop, Yamhill and Polk Counties Named for the Tillamook Native American people. &&&&&&&&&&027417.&&&&&027,417 &&&&&&&&&&&01102.&&&&&01,102 sq mi
(&&&&&&&&&&&02854.&&&&&02,854 km2)
State map highlighting Tillamook County
Umatilla County 059 Pendleton 1862 Central part of Wasco County Named for the Umatilla River. Its name may mean "laughing waters" in the Sahaptin language. &&&&&&&&&&080053.&&&&&080,053 &&&&&&&&&&&03215.&&&&&03,215 sq mi
(&&&&&&&&&&&08327.&&&&&08,327 km2)
State map highlighting Umatilla County
Union County 061 La Grande 1864 Baker County Named for the town of Union. The town was named by its founders to support the "Union" during the Civil War. &&&&&&&&&&025944.&&&&&025,944 &&&&&&&&&&&02037.&&&&&02,037 sq mi
(&&&&&&&&&&&05276.&&&&&05,276 km2)
State map highlighting Union County
Wallowa County 063 Enterprise 1887 Eastern part of Union County. Named for the Nez Perce word wallowa, meaning a tripod used for fish nets. This area was important for the Chief Joseph band of the Nez Perce. &&&&&&&&&&&07674.&&&&&07,674 &&&&&&&&&&&03145.&&&&&03,145 sq mi
(&&&&&&&&&&&08146.&&&&&08,146 km2)
State map highlighting Wallowa County
Wasco County 065 The Dalles 1854 Parts of Clackamas, Lane, Linn and Marion counties Named for the Wasco Native American tribe. &&&&&&&&&&026333.&&&&&026,333 &&&&&&&&&&&02381.&&&&&02,381 sq mi
(&&&&&&&&&&&06167.&&&&&06,167 km2)
State map highlighting Wasco County
Washington County 067 Hillsboro 1843 One of the original four districts of the Oregon Country (as Twality District) Named for George Washington, the first President of the United States. &&&&&&&&&0598865.&&&&&0598,865 &&&&&&&&&&&&0724.&&&&&0724 sq mi
(&&&&&&&&&&&01875.&&&&&01,875 km2)
State map highlighting Washington County
Wheeler County 069 Fossil 1899 Grant County, Gilliam County, and Crook County Named for Henry H. Wheeler, who ran the first mail stage line from The Dalles to Canyon City. &&&&&&&&&&&01436.&&&&&01,436 &&&&&&&&&&&01715.&&&&&01,715 sq mi
(&&&&&&&&&&&04442.&&&&&04,442 km2)
State map highlighting Wheeler County
Yamhill County 071 McMinnville 1843 One of the original four districts of the Oregon Country Named for the Yamhelas, a group of Kalapuya Native Americans who lived along the Yamhill River. &&&&&&&&&0108644.&&&&&0108,644 &&&&&&&&&&&&0716.&&&&&0716 sq mi
(&&&&&&&&&&&01854.&&&&&01,854 km2)
State map highlighting Yamhill County

See also

Kids robot.svg In Spanish: Anexo:Condados de Oregón para niños

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