Polk County, Minnesota
| Polk County | |
|---|---|
| Polk County Government Center in Crookston | |
| Location within the U.S. state of Minnesota | |
| Minnesota's location within the U.S. | |
| Coordinates: 47°46′27.314″N 96°24′0.097″W / 47.77425389°N 96.40002694°W | |
| Country | United States | 
| State | Minnesota | 
| Founded | July 20, 1858 (created) 1872 (organized) | 
| Named after | James Knox Polk | 
| Seat | Crookston | 
| Largest city | East Grand Forks | 
| Area | |
|  • Total | 1,997.791 sq mi (5,174.25 km2) | 
| • Land | 1,970.999 sq mi (5,104.86 km2) | 
| • Water | 26.792 sq mi (69.39 km2) 1.3% | 
| Population  (2020) | |
|  • Total | 31,192 | 
|  • Estimate  (2023) | 30,412 | 
| • Density | 15.429/sq mi (5.957/km2) | 
| Time zone | UTC−6 (Central) | 
| • Summer (DST) | UTC−5 (CDT) | 
| Congressional district | 7th | 
| Website | co.polk.mn.us | 
Polk County is a county in the northwestern part of the U.S. state of Minnesota. The population was 31,192 at the 2020 census. Its county seat is Crookston, and the largest community is East Grand Forks.
Polk County is part of the Grand Forks, ND-MN metropolitan statistical area.