Quick Facts
| County seat | Corvallis |
|---|---|
| Region | Willamette Valley |
| Population (2020 Census) | 97,728 |
| Land & water area | 676 sq mi |
| Population density | 144.6 people per sq mi |
| Established | 1847 |
| Formed from | Polk County |
| Name origin | Named for Thomas Hart Benton, senator and advocate of U.S. annexation of the Oregon Country. |
| Incorporated cities | 5 |
| Main electric utility | Pacific Power |
| FIPS code | 41003 |
| Official county website | co.benton.or.us |
About Benton County
Benton County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 95,184. Its county seat is Corvallis. The county was named after Thomas Hart Benton, a U.S. Senator who advocated American control over the Oregon Country. Benton County is designated as the Corvallis, OR Metropolitan Statistical Area, which is included in the Portland–Vancouver–Salem, OR–WA Combined Statistical Area. It is in the Willamette Valley.
Source: adapted from Wikipedia, available under CC BY-SA 4.0.

Cities in Benton County
| City | Population (2020) | Incorporated |
|---|---|---|
| Corvallis ★ | 59,922 | 1857 |
| Albany | 56,472 | 1864 |
| Philomath | 5,350 | 1882 |
| Adair Village | 994 | 1976 |
| Monroe | 647 | 1914 |
★ county seat. Cities that span more than one county are listed in each.