Quick Facts
| County seat | Dallas |
|---|---|
| Region | Willamette Valley |
| Population (2020 Census) | 90,037 |
| Land & water area | 741 sq mi |
| Population density | 121.5 people per sq mi |
| Established | 1845 |
| Formed from | Yamhill District |
| Name origin | Named for President James Knox Polk, who was serving during the county's creation. |
| Incorporated cities | 6 |
| Main electric utility | Portland General Electric / Pacific Power |
| FIPS code | 41053 |
| Official county website | co.polk.or.us |
About Polk County
Polk County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 87,433. The county seat is Dallas. The county is named for James Knox Polk, the 11th president of the United States.
Polk County is part of the Salem, OR Metropolitan Statistical Area, which is also included in the Portland-Vancouver-Salem, OR-WA Combined Statistical Area. It is located in the Willamette Valley.
Source: adapted from Wikipedia, available under CC BY-SA 4.0.
Cities in Polk County
| City | Population (2020) | Incorporated |
|---|---|---|
| Salem | 175,535 | 1857 |
| Dallas ★ | 16,854 | 1874 |
| Monmouth | 11,100 | 1859 |
| Independence | 9,828 | 1874 |
| Willamina | 2,239 | 1903 |
| Falls City | 1,051 | 1893 |
★ county seat. Cities that span more than one county are listed in each.