Polk County
Also known as Polk County, Minnesota, Polk County, MN
county in Minnesota, United States
Key facts
- Country
- United States
- State
- Minnesota
- Founded
- July 20, 1858 (created), February 27, 1879 (organized)
- Named after
- James Knox Polk
- Seat
- Crookston
- Largest city
- East Grand Forks
- Total
- 1,997.791 sq mi (5,174.25 km )
- Land
- 1,970.999 sq mi (5,104.86 km )
- Water
- 26.792 sq mi (69.39 km ) 1.34%
- Estimate 2025
- 30,545
- Density
- 15.431/sq mi (5.958/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
~12 min read
Article
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, and was estimated to be 30,413 in 2024. The county seat is Crookston and the largest city is East Grand Forks.
Polk County is part of the Grand Forks, ND-MN metropolitan statistical area.