Oregon Population By County in 2010

Updated on January 27, 2024.

Based on the US Census Vintage data estimates, in 2010, the population of Oregon was 3,837,614. Among all Oregon counties, Multnomah[object Promise] had the highest population (737,320), followed by Washington[object Promise] (531,652), and Clackamas[object Promise] (376,799). Wheeler[object Promise] was the least populated county (1,449).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

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Oregon Population By County in 2010
Oregon Population By County in 2010
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County Population % of State Population
Baker 16116 0.42
Benton 85577 2.23
Clackamas 376799 9.82
Clatsop 37097 0.97
Columbia 49353 1.29
Coos 63010 1.64
Crook 20882 0.54
Curry 22378 0.58
Deschutes 157744 4.11
Douglas 107637 2.81
Gilliam 1880 0.05
Grant 7465 0.20
Harney 7403 0.19
Hood River 22447 0.59
Jackson 203357 5.30
Jefferson 21662 0.56
Josephine 82880 2.16
Klamath 66323 1.73
Lake 7875 0.21
Lane 351948 9.17
Lincoln 45997 1.20
Linn 116887 3.05
Malheur 31349 0.82
Marion 315948 8.23
Morrow 11207 0.29
Multnomah 737320 19.21
Polk 75540 1.97
Sherman 1779 0.05
Tillamook 25243 0.66
Umatilla 76093 1.98
Union 25725 0.67
Wallowa 7012 0.18
Wasco 25282 0.66
Washington 531652 13.85
Wheeler 1449 0.04
Yamhill 99298 2.59