Founded in 1858, Polk County is one of 87 counties in the state of Minnesota. Historically, Polk County was formed from Pembina County. The city of Crookston is the county seat. With FIPS code of 119, Polk County has a population of 30,757 and area of 1,970.37 square miles (5,103 km2).
List of all cities in Polk County, MN alphabetically
| City/Town | Postal Code | Area Code |
| Beltrami, MN | 56517 | 218 |
| Climax, MN | 56523 | 218 |
| Crookston, MN | 56716 | 218 |
| East G Forks, MN | 56721 | 218 |
| East Grand Forks, MN | 56721 | 218 |
| Eldred, MN | 56523 | 218 |
| Erskine, MN | 56535 | 218 |
| Euclid, MN | 56722 | 218 |
| Fertile, MN | 56540 | 218 |
| Fisher, MN | 56723 | 218 |
| Fosston, MN | 56542 | 218 |
| Gentilly, MN | 56716 | 218 |
| Gully, MN | 56646 | 218 |
| McIntosh, MN | 56556 | 218 |
| Mentor, MN | 56736 | 218 |
| Nielsville, MN | 56568 | 218 |
| Olga, MN | 56646 | 218 |
| Rindal, MN | 56540 | 218 |
| Trail, MN | 56684 | 218 |
| Winger, MN | 56592 | 218 |