Oregon Population By County in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the population of Oregon was 4,256,465. Among all Oregon counties, Multnomah had the highest population (805,319), followed by Washington (602,453), and Clackamas (423,804). Wheeler was the least populated county (1,447).

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 2021
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Oregon Population By County in 2021
County
Population
% of State Population
Multnomah 805,319 18.92
Washington 602,453 14.15
Clackamas 423,804 9.96
Lane 384,121 9.02
Marion 347,851 8.17
Jackson 224,353 5.27
Deschutes 205,283 4.82
Linn 130,120 3.06
Douglas 112,149 2.64
Yamhill 108,481 2.55
Benton 96,321 2.26
Polk 89,373 2.10
Josephine 88,637 2.08
Umatilla 80,153 1.88
Klamath 70,246 1.65
Coos 65,126 1.53
Columbia 53,202 1.25
Lincoln 51,013 1.20
Clatsop 41,932 0.99
Malheur 31,677 0.74
Tillamook 27,808 0.65
Wasco 26,739 0.63
Union 26,288 0.62
Crook 25,762 0.61
Jefferson 25,105 0.59
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