Polk County, Minnesota

Polk County, Minnesota
The Polk County Government Center in Crookston
Location within the U.S. state of Minnesota
Coordinates: 47°46′27″N 96°24′00″W / 47.774254°N 96.400027°W / 47.774254; -96.400027
Country United States
State Minnesota
FoundedJuly 20, 1858 (created)
February 27, 1879 (organized)
Named afterJames Knox Polk
SeatCrookston
Largest cityEast Grand Forks
Area
 • Total
1,997.791 sq mi (5,174.25 km2)
 • Land1,970.999 sq mi (5,104.86 km2)
 • Water26.792 sq mi (69.39 km2)  1.34%
Population
 (2020)
 • Total
31,192
 • Estimate 
(2024)
30,413 
 • Density15.431/sq mi (5.958/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Area code218
Congressional district7th
Websitepolkcountymn.gov

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.