Oregon Population By County in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the population of Oregon was 4,244,795. Among all Oregon counties, Multnomah[object Promise] had the highest population (816,467), followed by Washington[object Promise] (601,101), and Clackamas[object Promise] (422,444). Wheeler[object Promise] was the least populated county (1,460).

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.

See this for other years:
Oregon Population By County in 2020
Oregon Population By County in 2020
Items per page:
0 of 0
County Population % of State Population
Baker 16725 0.39
Benton 95208 2.24
Clackamas 422444 9.95
Clatsop 41160 0.97
Columbia 52730 1.24
Coos 64971 1.53
Crook 24923 0.59
Curry 23516 0.55
Deschutes 199454 4.70
Douglas 111288 2.62
Gilliam 2017 0.05
Grant 7241 0.17
Harney 7502 0.18
Hood River 23958 0.56
Jackson 223614 5.27
Jefferson 24577 0.58
Josephine 88235 2.08
Klamath 69547 1.64
Lake 8167 0.19
Lane 383279 9.03
Lincoln 50507 1.19
Linn 128978 3.04
Malheur 31650 0.75
Marion 346339 8.16
Morrow 12220 0.29
Multnomah 816467 19.24
Polk 87950 2.07
Sherman 1873 0.04
Tillamook 27466 0.65
Umatilla 80098 1.89
Union 26167 0.62
Wallowa 7401 0.17
Wasco 26631 0.63
Washington 601101 14.16
Wheeler 1460 0.03
Yamhill 107931 2.54