Census ACS 2023 · 36 counties
Largest Counties in Oregon
Oregon has 36 counties with Census data available. The largest is Multnomah County with a population of 803,863. County-level data is important because counties are the primary unit of local government in most states, responsible for courts, elections, public health, and infrastructure. Population distribution across counties reveals where growth is concentrated and where rural decline may be occurring.
Source: Census ACS 2023 5-Year Estimates
| # | County | Population | Median Income |
|---|---|---|---|
| 1 | Yamhill County | 108,122 | $87,084 |
| 2 | Wheeler County | 1,434 | $51,250 |
| 3 | Washington County | 600,266 | $104,434 |
| 4 | Wasco County | 26,603 | $63,602 |
| 5 | Wallowa County | 7,532 | $65,559 |
| 6 | Union County | 26,192 | $64,212 |
| 7 | Umatilla County | 80,087 | $68,958 |
| 8 | Tillamook County | 27,471 | $66,551 |
| 9 | Sherman County | 1,908 | $59,500 |
| 10 | Polk County | 88,553 | $81,318 |
| 11 | Multnomah County | 803,863 | $86,247 |
| 12 | Morrow County | 12,249 | $70,217 |
| 13 | Marion County | 346,532 | $74,624 |
| 14 | Malheur County | 31,701 | $49,902 |
| 15 | Linn County | 129,794 | $73,396 |
| 16 | Lincoln County | 50,632 | $61,314 |
| 17 | Lane County | 382,628 | $69,311 |
| 18 | Lake County | 8,254 | $61,222 |
| 19 | Klamath County | 69,812 | $59,353 |
| 20 | Josephine County | 88,069 | $59,097 |
| 21 | Jefferson County | 24,973 | $73,051 |
| 22 | Jackson County | 222,563 | $71,443 |
| 23 | Hood River County | 23,958 | $82,095 |
| 24 | Harney County | 7,515 | $48,338 |
| 25 | Grant County | 7,238 | $59,800 |
| 26 | Gilliam County | 2,002 | $64,219 |
| 27 | Douglas County | 111,807 | $58,983 |
| 28 | Deschutes County | 203,026 | $87,640 |
| 29 | Curry County | 23,463 | $64,769 |
| 30 | Crook County | 25,651 | $81,675 |
| 31 | Coos County | 64,832 | $60,313 |
| 32 | Columbia County | 53,178 | $86,359 |
| 33 | Clatsop County | 41,343 | $68,705 |
| 34 | Clackamas County | 422,308 | $100,360 |
| 35 | Benton County | 96,359 | $76,011 |
| 36 | Baker County | 16,796 | $57,844 |
More Rankings for Oregon
Frequently Asked Questions
Multnomah County is the #1 ranked county in Oregon by population, with a value of 803,863 according to Census ACS 2023 data.
Oregon has 36 counties tracked in Census ACS 2023 data.
All data comes from the American Community Survey (ACS) 2023 5-Year estimates by the US Census Bureau.
Data from the American Community Survey 2023 5-Year estimates. Covers all counties in Oregon.