Malheur County, Oregon

Malheur County: County in Oregon, United States


Malheur County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 31,313 and a population density of 1 people per km². After 10 years in 2020 county had an estimated population of 30,983 inhabitants. Its county seat is Vale. The county was created 136 years ago in 1886.

Quick Facts about Malheur County

Population : 30,983 (2020)
Country : United States of America
State : Oregon (United States)
Area : 25719 km2
Water as percent of area : 0.4%
Land as percent of area : 99.6%
Named for : Malheur River
Altitude : 4,373 feet / 1333 meters
Capital : Vale
Establishment : January 01, 1887
Time Zone : America/Boise
Local time : 07:20:09 (1st June 2023)
Density : 1 Pop. per km² as of 2020
Population growth : -1.07% (2010-2020)
Malheur County locator map
Location of Malheur County on Oregon map.
Malheur County Courthouse image
Malheur County Courthouse
Malheur County Courthouse image


Malheur County is located at 43°11'36"N 117°37'23"W (43.1934100, -117.6230700). It has 8 neighbors: Baker County, Grant County, Canyon County, Owyhee County, Payette County, Washington County, Humboldt County and Harney County.

Malheur County map

The largest city of Malheur County is Ontario with a population of 11,140. Other cities include, Nyssa population 3,231, Vale population 1,806, Jordan Valley population 181 and Adrian population 175. See all Malheur County cities & populated places.

Malheur County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Malheur County.

City Name Population Title
Ontario 11,140 City in Oregon, USA
Nyssa 3,231 City in Malheur County, Oregon, United States
Vale 1,806 City in Oregon, USA
Jordan Valley 181 City in Oregon, USA
Adrian 175 City in Oregon, USA

Malheur County has 8 neighbours.


According to census records, the population of Malheur County decreased by 1.07% in 10 years.

Year Population % Change Method
2010 31,313 - census
2011 30,964 -1.13% estimation process
2012 30,751 -0.69% estimation process
2013 30,634 -0.38% estimation process
2014 30,344 -0.96% estimation process
2015 30,211 -0.44% estimation process
2016 30,340 0.43% estimation process
2017 30,385 0.15% estimation process
2018 30,553 0.55% estimation process
2019 30,571 0.06% estimation process
2020 30,983 1.33% estimation process

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Oregon Other Counties (more counties)

County Name Population Title
Multnomah County 815,637 County in Oregon, United States
Portland 656,751 City in Oregon, USA
Washington County 603,514 County in Oregon, United States
Clackamas County 421,596 County in Oregon, United States
Lane County 382,986 County in Oregon, United States
Marion County 349,204 County in Oregon, United States
Jackson County 221,844 County in Oregon, United States
Deschutes County 201,769 County in Oregon, United States
Salem 175,891 City and capital of Oregon, USA
Eugene 173,236 City in Lane County, Oregon, United States
Linn County 131,054 County in Oregon, United States
Terrebonne 117,664 Census-designated place in Deschutes County, Oregon
Douglas County 111,364 County in Oregon, United States
Hillsboro 110,985 City in Oregon, USA
Gresham 110,031 City in Oregon, USA
Yamhill County 107,664 County in Oregon, United States