City Hall - (712) 664-2216   

Koster Grain, Inc

\"\"Koster Grain began in Setember 1977 as a grain and feed business. In the 1980’s it expanded its services to include woodshavings, hay and grain salvage.

In 1990 an affiliate Koster Grinding, Inc. was started and began processing hay, wood and grain in the western half of Iowa. From the 1990’s to the present cotton seed, distiller by-products, oat hulls and other feedstuffs were added to our product line.

Presently, Koster Grain and Grinding has 55 employees and conducts the majority of its business in a 300-mile radius. It has office-grain facilities in Carroll/Maple River, Wall Lake, Stuart, and Rodney.


Wall Lake, IA 51466


Primary No. - 1-800-798-5421
Grain Bids - 1-866-349-2750
Local No. - 712.664.2214

Business Hours

Monday - Friday, 7:00 AM - 5:00 PM