Polk County, Minnesota Zip Codes

Zip Code	City	Population
56721	East Grand Forks	10,905
56716	Crookston	9,048
56542	Fosston	2,434
56762	Warren	2,407
56540	Fertile	1,916
56556	Mcintosh	1,303
56535	Erskine	1,242
56723	Fisher	827
56736	Mentor	650
56592	Winger	527
56684	Trail	400
56523	Climax	395
56722	Euclid	357
56646	Gully	328
56517	Beltrami	279
56568	Nielsville	138

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.