Oregon 2010 Population By County
Updated on June 22, 2021.

According to the US Census Bureau population estimates, there were 3,837,491 people living in Oregon in 2010. Multnomah County was the most populated county with 737,276 residents, followed by Washington County with 531,638 residents, and Clackamas County with 376,788 residents. Wheeler County with a population of 1,447 was the least populated county in Oregon in 2010.

Use the map below to interactively explore the population of each county in Oregon in 2010. The data can also be explored further by sorting and filtering with the table below.

Oregon 2010 Population By County
See also Population estimate for other years:
Table of Oregon 2010 Population By County
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County Population % of State Population
Baker 16,109 0.42%
Benton 85,574 2.23%
Clackamas 376,788 9.82%
Clatsop 37,088 0.97%
Columbia 49,355 1.29%
Coos 63,007 1.64%
Crook 20,884 0.54%
Curry 22,378 0.58%
Deschutes 157,742 4.11%
Douglas 107,631 2.81%
Gilliam 1,882 0.05%
Grant 7,464 0.20%
Harney 7,400 0.19%
Hood River 22,445 0.59%
Jackson 203,341 5.30%
Jefferson 21,661 0.56%
Josephine 82,879 2.16%
Klamath 66,322 1.73%
Lake 7,875 0.21%
Lane 351,920 9.17%
Lincoln 45,999 1.20%
Linn 116,891 3.05%
Malheur 31,349 0.82%
Marion 315,941 8.23%
Morrow 11,209 0.29%
Multnomah 737,276 19.21%
Polk 75,538 1.97%
Sherman 1,779 0.05%
Tillamook 25,254 0.66%
Umatilla 76,094 1.98%
Union 25,731 0.67%
Wallowa 7,012 0.18%
Wasco 25,284 0.66%
Washington 531,638 13.85%
Wheeler 1,447 0.04%
Yamhill 99,304 2.59%