Oregon Population By County in 2021

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2021, the population of Oregon was 4,256,301. Among all Oregon counties, Multnomah[object Promise] had the highest population (805,593), followed by Washington[object Promise] (602,494), and Clackamas[object Promise] (423,763). Wheeler[object Promise] was the least populated county (1,453).

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
Oregon Population By County in 2021
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County Population % of State Population
Baker 16873 0.40
Benton 96277 2.26
Clackamas 423763 9.96
Clatsop 41916 0.99
Columbia 53229 1.25
Coos 65119 1.53
Crook 25753 0.61
Curry 23720 0.56
Deschutes 205358 4.83
Douglas 112057 2.63
Gilliam 2015 0.05
Grant 7288 0.17
Harney 7590 0.18
Hood River 24094 0.57
Jackson 224327 5.27
Jefferson 25122 0.59
Josephine 88590 2.08
Klamath 70255 1.65
Lake 8285 0.20
Lane 384063 9.02
Lincoln 51026 1.20
Linn 129948 3.05
Malheur 31709 0.75
Marion 347775 8.17
Morrow 12358 0.29
Multnomah 805593 18.93
Polk 89384 2.10
Sherman 1912 0.05
Tillamook 27800 0.65
Umatilla 80154 1.88
Union 26276 0.62
Wallowa 7554 0.18
Wasco 26735 0.63
Washington 602494 14.16
Wheeler 1453 0.03
Yamhill 108436 2.55