Our Winthrop location offers bagged feed, liquid fertilizer, anhydrous ammonia, seed, crop protection, and 4,028,000 bu. of grain storage and drying capabilities.

Winthrop, Iowa, located on old Hwy 20 between Independence and Manchester, is a thriving community that is proud to be known as one of the friendliest places to visit in northeast Iowa. Winthrop invites you to join their small-town atmosphere, friendly people and progressive spirit. Winthrop, Iowa – a Great Town, Great People, and a Great Place to work at Innovative Ag Services!