# Counties in Oregon by population density, 2025

All 36 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `population_density`
- Unit: inhabitants per km²
- Definition: Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.
- Source: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km² (https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/)
- Retrieved: 2026-10-09
- Citation: U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.
- Web page: https://invokely.ai/rankings/population-density/oregon-counties
- CSV: https://invokely.ai/download/rankings/population-density/oregon-counties.csv

| Rank | Place | inhabitants per km² |
|---:|---|---:|
| 1 | Multnomah County | 712.5 |
| 2 | Washington County | 326.1 |
| 3 | Marion County | 116.3 |
| 4 | Clackamas County | 88 |
| 5 | Yamhill County | 59.3 |
| 6 | Benton County | 55.9 |
| 7 | Polk County | 46.9 |
| 8 | Lane County | 32.4 |
| 9 | Columbia County | 31.7 |
| 10 | Jackson County | 30.8 |
| 11 | Deschutes County | 27.3 |
| 12 | Linn County | 22.4 |
| 13 | Josephine County | 20.7 |
| 14 | Lincoln County | 19.9 |
| 15 | Clatsop County | 19.1 |
| 16 | Hood River County | 17.5 |
| 17 | Coos County | 15.5 |
| 18 | Umatilla County | 9.7 |
| 19 | Tillamook County | 9.6 |
| 20 | Douglas County | 8.6 |
| 21 | Jefferson County | 5.6 |
| 22 | Curry County | 5.4 |
| 23 | Union County | 4.9 |
| 24 | Klamath County | 4.6 |
| 25 | Wasco County | 4.3 |
| 26 | Crook County | 3.6 |
| 27 | Morrow County | 2.4 |
| 28 | Baker County | 2.1 |
| 29 | Malheur County | 1.3 |
| 30 | Sherman County | 1 |
| 31 | Wallowa County | 0.9 |
| 32 | Gilliam County | 0.6 |
| 33 | Grant County | 0.6 |
| 34 | Lake County | 0.4 |
| 35 | Wheeler County | 0.3 |
| 36 | Harney County | 0.3 |