Oregon Population By County in 2018
Updated on January 27, 2024.
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 for each county in Oregon in 2018. The data can also be explored further by sorting and filtering with the table below.
You can see similar information for other states and by state for the United States.
Related Topics: Oregon Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
Oregon Population By County (2018)
Table of Oregon Population By County in 2018
Items per page:
0 of 0
| 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% |