1. Farm Service Co-Op 1023 5th Ave S, Denison, IA 51442 Coordinate: 42.01117,-95.3595 Phone: (712) 263-5671
2. Gavilon Fertilizer 401 Boyer Valley Rd, Denison, IA 51442 Coordinate: 42.00744,-95.36906 Phone: (712) 263-3163