List of counties in Oregon
County information
Table:
County

FIPS code[2]

County seat[3]

Established[3]

Origin[4]

Etymology[4]

Population(2016)[5]

Area[3]

Map

Baker County

001

Baker City
1862
Wasco County, Union County and Malheur County
Edward Dickinson Baker, a senator from Oregon who was killed at Ball's Bluff, a battle of the American Civil War

16,510

3,068 sq mi
(7,946 km2)

Benton County

003

Corvallis
1847
Polk County
Thomas Hart Benton (1782–1858), a U.S. senator who advocated U.S. control over the Oregon Country

91,320

676 sq mi
(1,751 km2)

Clackamas County

005

Oregon City
1843
One of the original four districts of the Oregon Country
The Clackamas Indians, a Native American tribe living in the area.

404,980

1,868 sq mi
(4,838 km2)

Clatsop County

007

Astoria
1844
Northern and western portions of the original Twality District
Clatsop tribe of Native Americans, who lived along the coast of the Pacific Ocean prior to European settlement

38,225

827 sq mi
(2,142 km2)

Columbia County

009

Saint Helens
1854
Northern half of Washington County
Columbia River, which forms the county's northern borders

50,795

657 sq mi
(1,702 km2)

Coos County

011

Coquille
1853
Western parts of Umpqua and Jackson Counties
The Coos Tribe of Native Americans who lived in the region

63,190

1,600 sq mi
(4,144 km2)

Crook County

013

Prineville
1882
Southern part of Wasco County
George Crook (1828–1890), a U.S. Army officer who served in the American Civil War and the Indian Wars

21,580

2,980 sq mi
(7,718 km2)

Curry County

015

Gold Beach
1855
Coos County
George Law Curry (1820–1878), a governor of the Oregon Territory

22,600

1,627 sq mi
(4,214 km2)

Deschutes County

017

Bend
1916
Southern part of Crook County
"Riviere des Chutes", French for "River of the Falls".

176,635

3,018 sq mi
(7,817 km2)

Douglas County

019

Roseburg
1852
Portion of Umpqua County which lay east of the Coast Range summit
Stephen A. Douglas (1813–1861), a U.S. Senator who supported Oregon statehood

110,395

5,037 sq mi
(13,046 km2)

Gilliam County

021

Condon
1885
Eastern third of Wasco County
Cornelius Gilliam (1798–1848), a pioneer who commanded the forces of the Provisional Government of Oregon after the Whitman Massacre

1,980

1,204 sq mi
(3,118 km2)

Grant County

023

Canyon City
1864
Parts of old Wasco and old Umatilla counties
Ulysses S. Grant (1822–1885), army officer who served in the Oregon Territory; a Union general in the American Civil War at the time of the county's creation; and subsequently President of the United States (1869–1877)

7,410

4,529 sq mi
(11,730 km2)

Harney County

025

Burns
1889
Southern two-thirds of Grant County
William S. Harney (1800–1889), a cavalry officer of the period, who was involved in the Pig War

7,320

10,135 sq mi
(26,250 km2)

Hood River County

027

Hood River
1908
Northwest portion of Wasco County
The Hood River (a tributary of the Columbia River), which flows through the county

24,735

522 sq mi
(1,352 km2)

Jackson County

029

Medford
1852
Southwestern portion of Lane County and the unorganized area south of Douglas and Umpqua Counties
Andrew Jackson (1767–1845), the seventh President of the United States

213,765

2,785 sq mi
(7,213 km2)

Jefferson County

031

Madras
1914
Crook County
Mount Jefferson, which is located on its western boundary, named in turn for Thomas Jefferson (1743–1826), the 3rd president of the United States.

22,790

1,781 sq mi
(4,613 km2)

Josephine County

033

Grants Pass
1856
Western half of Jackson County
Virginia "Josephine" Rollins, the first white woman to make this county her home.

84,675

1,640 sq mi
(4,248 km2)

Klamath County

035

Klamath Falls
1882
Western part of Lake County
The Klamath or Clamitte tribe, which has had a presence in the area for 10,000 years.

67,410

5,945 sq mi
(15,397 km2)

Lake County

037

Lakeview
1874
Jackson and Wasco Counties
Numerous lakes and hot springs.

8,015

7,940 sq mi
(20,565 km2)

Lane County

039

Eugene
1851
Southern part of Linn County and the portion of Benton County east of Umpqua County
Gen. Joseph Lane (1801–1881), the first governor of Oregon Territory

365,940

4,554 sq mi
(11,795 km2)

Lincoln County

041

Newport
1893
Western portion of Benton County and Polk County
Abraham Lincoln (1809–1865), sixteenth President of the United States.

47,735

980 sq mi
(2,538 km2)

Linn County

043

Albany
1847
Southern portion of Champoeg (later Marion) County
U.S. Senator Lewis F. Linn (1795–1843) of Missouri, author of the Donation Land Act, which provided free land to settlers in the West.

122,315

2,291 sq mi
(5,934 km2)

Malheur County

045

Vale
1887
Southern portion of Baker County
Malheur River (formally "Riviere au Malheur" or "Unfortunate River"), named by French trappers whose property and furs were stolen from their river encampment.

31,705

9,888 sq mi
(25,610 km2)

Marion County

047

Salem
1843
One of the original four districts of the Oregon territory
Francis Marion (1732–1795), American Revolutionary War general

333,950

1,185 sq mi
(3,069 km2)

Morrow County

049

Heppner
1885
Western portion of Umatilla County and a small portion of eastern Wasco County
Jackson L. Morrow, a state representative who advocated for the formation of the county.

11,745

2,033 sq mi
(5,265 km2)

Multnomah County

051

Portland
1854
Eastern part of Washington and the northern part of Clackamas counties
The Indian village of Multnomah, on Sauvie Island. The word is derived from nematlnomaq, probably meaning downriver. Lewis and Clark made note of the name in 1805, and applied that name to all local Indians.

790,670

435 sq mi
(1,127 km2)

Polk County

053

Dallas
1845
Yamhill District
James Knox Polk (1795–1849), President of the United States at the time of the county's creation

79,730

741 sq mi
(1,919 km2)

Sherman County

055

Moro
1889
Northeast corner of Wasco County
William Tecumseh Sherman (1820–1891), American Civil War general, and businessman, educator, and author

1,795

823 sq mi
(2,132 km2)

Tillamook County

057

Tillamook
1853
Clatsop, Yamhill and Polk Counties
Tillamook (or Killamook) Native American people.

25,920

1,102 sq mi
(2,854 km2)

Umatilla County

059

Pendleton
1862
Portion of Wasco County
Sahaptin word, possibly meaning laughing waters.

79,880

3,215 sq mi
(8,327 km2)

Union County

061

La Grande
1864
Baker County
The town of Union, which had been established two years before and named by its founders for the "Union" of the states during the Civil War.

26,745

2,037 sq mi
(5,276 km2)

Wallowa County

063

Enterprise
1887
Eastern portion of Union County.
The Nez Perce word wallowa to designate a tripod of poles used to support fish nets. The area was claimed by the Chief Joseph band of the Nez Perce as its hunting and fishing grounds

7,140

3,145 sq mi
(8,146 km2)

Wasco County

065

The Dalles
1854
Parts of Clackamas, Lane, Linn and Marion counties
The Wasco (or Wascopam) Native American tribe.

26,700

2,381 sq mi
(6,167 km2)

Washington County

067

Hillsboro
1843
One of the original four districts of the Oregon Country (as Twality District)
George Washington (1732–1799), Founding Father of the United States and first President of the United States

583,595

724 sq mi
(1,875 km2)

Wheeler County

069

Fossil
1899
Parts of Grant, Gilliam, and Crook Counties
Henry H. Wheeler, who operated the first mail stage line from The Dalles to Canyon City.

1,465

1,715 sq mi
(4,442 km2)

Yamhill County

071

McMinnville
1843
One of the original four districts of the Oregon Country
The Yamhelas, members of the Kalapuya Native American family, who lived along the Yamhill River in the western Willamette Valley.

104,990

716 sq mi
(1,854 km2)

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