Oregon Population By County in 2018
Updated on December 2, 2021.
According to the US Census Bureau population estimates, there were 4,183,538 people living in Oregon in 2018. Multnomah County was the most populated county with 809,448 residents, followed by Washington County with 597,030 residents, and Clackamas County with 415,586 residents. Wheeler County with a population of 1,356 was the least populated county in Oregon in 2018.
Use the map below to interactively explore the population of each county in Oregon in 2018. The data can also be explored further by sorting and filtering with the table below.
Hover/Click on the counties to see the values.
Oregon Population By County (2018)
Table of Oregon Population By County in 2018
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| County | Population | % of State Population |
|---|---|---|
| Baker | 16,024 | 0.38% |
| Benton | 92,511 | 2.21% |
| Clackamas | 415,586 | 9.93% |
| Clatsop | 39,730 | 0.95% |
| Columbia | 52,408 | 1.25% |
| Coos | 64,338 | 1.54% |
| Crook | 23,789 | 0.57% |
| Curry | 22,850 | 0.55% |
| Deschutes | 191,770 | 4.58% |
| Douglas | 110,164 | 2.63% |
| Gilliam | 1,883 | 0.05% |
| Grant | 7,169 | 0.17% |
| Harney | 7,278 | 0.17% |
| Hood River | 23,228 | 0.56% |
| Jackson | 219,616 | 5.25% |
| Jefferson | 24,085 | 0.58% |
| Josephine | 87,418 | 2.09% |
| Klamath | 67,810 | 1.62% |
| Lake | 7,861 | 0.19% |
| Lane | 378,807 | 9.06% |
| Lincoln | 49,320 | 1.18% |
| Linn | 127,455 | 3.05% |
| Malheur | 30,633 | 0.73% |
| Marion | 345,512 | 8.26% |
| Morrow | 11,349 | 0.27% |
| Multnomah | 809,448 | 19.35% |
| Polk | 84,854 | 2.03% |
| Sherman | 1,702 | 0.04% |
| Tillamook | 26,710 | 0.64% |
| Umatilla | 77,332 | 1.85% |
| Union | 26,733 | 0.64% |
| Wallowa | 7,043 | 0.17% |
| Wasco | 26,346 | 0.63% |
| Washington | 597,030 | 14.27% |
| Wheeler | 1,356 | 0.03% |
| Yamhill | 106,390 | 2.54% |
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