Oregon Counties

Oregon Counties

by Vishul Malik



One of the most important aspects of the Oregon Constitution is that it doesn’t explicitly provide for county seats. There are 9 counties in Oregon where voters have the right of adopting and amending the government of their own government.

How Many Counties in Oregon

The US state of Oregon has 36 counties. A board of commissioners (consisting of 3-to-5 elected members) governs 28 counties in the state. A county court (having 1 county judge and 2 commissioners) governs 8 counties. Check this Oregon County Map which provides the location of all 8 counties on the Oregon Map.




Counties of Oregon

What are the 5 Biggest Counties in Oregon by Size?

The biggest counties in Oregon in terms of size are Harney County, Malheur County, Lake County, Klamath County, and Douglas County.


What are the 5 Biggest Counties in Oregon by Population?

The biggest counties in Oregon in terms of population (2021) are Multnomah County, Washington County, Clackamas County, Lane County, and Marion County.

Which is the Smallest County in Oregon?

The smallest county in Oregon (population) is Wheeler County. In terms of size, Multnomah County is the smallest county. 

What are the Oldest and Newest Counties in Oregon?

Clackamas County, Marion County, Washington County, and Yamhill County are the oldest counties in Oklahoma, created in 1843. Deschutes County is the newest county, created in 1916.


Which is the Richest County in Oregon?

Washington County is the richest county, having a median household income (2019) of US$82,215.

What County in Oregon has the Most Millionaires?

Umatilla County has the most number of millionaires and wealthiest residents in the state of Oregon. 

What are the top 5 Best Counties to Live in Oregon?

Washington, Clackamas, Yamhill, Columbia, and Deschutes are the best counties to live in Oregon.


Yamhill County Map, Oregon

Facts about Yamhill County County Yamhill State Oregon Country USA Population – 2015 102,659 List of Counties in Oregon County Name County Seat/Capital State 2010 pop. Area-km Area-mi Baker Baker…

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Malheur County Map, Oregon

Facts about Malheur County County Malheur State Oregon Country USA Population – 2015 30,380 List of Counties in Oregon County Name County Seat/Capital State 2010 pop. Area-km Area-mi Baker Baker…

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Marion County Map, Oregon

Facts about Marion County County Marion State Oregon Country USA Population – 2015 330,700 More Maps of Marion County Marion County Map, South Carolina Marion County Map, Alabama Marion County…

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Morrow County Map, Oregon

Facts about Morrow County County Morrow State Oregon Country USA Population – 2015 11,190 List of Counties in Oregon County Name County Seat/Capital State 2010 pop. Area-km Area-mi Baker Baker…

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Multnomah County Map, Oregon

Facts about Multnomah County County Multnomah State Oregon Country USA Population – 2015 790,294 List of Counties in Oregon County Name County Seat/Capital State 2010 pop. Area-km Area-mi Baker Baker…

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Tillamook County Map, Oregon

Facts about Tillamook County County Tillamook State Oregon Country USA Population – 2015 25,653 List of Counties in Oregon County Name County Seat/Capital State 2010 pop. Area-km Area-mi Baker Baker…

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Umatilla County Map, Oregon

Facts about Umatilla County County Umatilla State Oregon Country USA Population – 2015 76,531 List of Counties in Oregon County Name County Seat/Capital State 2010 pop. Area-km Area-mi Baker Baker…

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