Ranking of Oregon Counties By Population in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the Population for Oregon was 4.26M. Among all Oregon counties, Multnomah County had the highest population (805.32K), followed by Washington County (602.45K), and Clackamas County (423.80K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Oregon counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Oregon Counties By Population in 2021
Multnomah
Washington
Clackamas
Lane
Marion
Jackson
Deschutes
Linn
Douglas
Yamhill
Ranking of Oregon Counties By Population in 2021
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Rank County Population
1 Multnomah County 805319
2 Washington County 602453
3 Clackamas County 423804
4 Lane County 384121
5 Marion County 347851
6 Jackson County 224353
7 Deschutes County 205283
8 Linn County 130120
9 Douglas County 112149
10 Yamhill County 108481
11 Benton County 96321
12 Polk County 89373
13 Josephine County 88637
14 Umatilla County 80153
15 Klamath County 70246
16 Coos County 65126
17 Columbia County 53202
18 Lincoln County 51013
19 Clatsop County 41932
20 Malheur County 31677
21 Tillamook County 27808
22 Wasco County 26739
23 Union County 26288
24 Crook County 25762
25 Jefferson County 25105
26 Hood River County 24086
27 Curry County 23719
28 Baker County 16880
29 Morrow County 12359
30 Lake County 8290
31 Harney County 7602
32 Wallowa County 7558
33 Grant County 7288
34 Gilliam County 2013
35 Sherman County 1907
36 Wheeler County 1447