Oregon Population By County in 2018
Updated on June 22, 2021.
According to the US Census Bureau population estimates, there were 4,181,886 people living in Oregon in 2018. Multnomah County was the most populated county with 809,072 residents, followed by Washington County with 596,904 residents, and Clackamas County with 415,416 residents. Wheeler County with a population of 1,351 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 | 16,034 | 0.38% |
| Benton | 92,442 | 2.21% |
| Clackamas | 415,416 | 9.93% |
| Clatsop | 39,711 | 0.95% |
| Columbia | 52,245 | 1.25% |
| Coos | 64,272 | 1.54% |
| Crook | 23,825 | 0.57% |
| Curry | 22,795 | 0.55% |
| Deschutes | 191,905 | 4.59% |
| Douglas | 110,114 | 2.63% |
| Gilliam | 1,893 | 0.05% |
| Grant | 7,185 | 0.17% |
| Harney | 7,292 | 0.17% |
| Hood River | 23,267 | 0.56% |
| Jackson | 219,411 | 5.25% |
| Jefferson | 24,150 | 0.58% |
| Josephine | 87,150 | 2.08% |
| Klamath | 67,687 | 1.62% |
| Lake | 7,835 | 0.19% |
| Lane | 378,549 | 9.05% |
| Lincoln | 49,224 | 1.18% |
| Linn | 127,451 | 3.05% |
| Malheur | 30,553 | 0.73% |
| Marion | 345,412 | 8.26% |
| Morrow | 11,360 | 0.27% |
| Multnomah | 809,072 | 19.35% |
| Polk | 84,992 | 2.03% |
| Sherman | 1,700 | 0.04% |
| Tillamook | 26,710 | 0.64% |
| Umatilla | 77,421 | 1.85% |
| Union | 26,701 | 0.64% |
| Wallowa | 7,058 | 0.17% |
| Wasco | 26,432 | 0.63% |
| Washington | 596,904 | 14.27% |
| Wheeler | 1,351 | 0.03% |
| Yamhill | 106,367 | 2.54% |
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