Dairy product manufacturers in Illinois

Illinois has 33 dairy processors in EPA records, facilities that list codes for milk, butter, cheese, dry dairy products and ice cream. The most are in Rockford, Lena and Dakota. That is 3% of the 1,021 such facilities nationwide, and Illinois ranks #7 of 46 states.

Product: Dairy product manufacturers
Facilities: 33
State rank: #7
NAICS: 311511 and 4 related codes
Revised: November 1, 2026

Facilities in Illinois

These are active facilities in EPA's ECHO database that list a code for milk, butter, cheese, dry dairy products and ice cream.

Facility	City	What EPA lists
Bay Valley Foods LLC	Pecatonica	Dry, Condensed, and Evaporated Dairy Product Manufacturing
Kraft Heinz Co	Champaign	Cheese Manufacturing
Kolb-Lena Cheese Co	Lena	Cheese Manufacturing
Bay Valley Foods LLC	Dixon	Dry, Condensed, and Evaporated Dairy Product Manufacturing
Berner Food & Beverage LLC	Dakota	Cheese Manufacturing
Dean Illinois Dairies, LLC	Harvard	Fluid Milk Manufacturing
Dfa Dairy Brands Ice Cream, LLC DBA Midwest Ice Cr	Belvidere	Ice Cream and Frozen Dessert Manufacturing
Mars Wrigley	Burr Ridge	Ice Cream and Frozen Dessert Manufacturing
Prairie Farms Dairy Incorporated	Olney	Fluid Milk Manufacturing
Prairie Farms Dairy Incorporated	Carbondale	Fluid Milk Manufacturing
Torkelson Cheese Co	Lena	Cheese Manufacturing
Berner Cheese Corp	Dakota	Cheese Manufacturing
Brewster Cheese Co	Stockton	Cheese Manufacturing
Chester Dairy Co	Chester	Fluid Milk Manufacturing
Corefx Ingredients LLC	Orangeville	Dry, Condensed, and Evaporated Dairy Product Manufacturing
Dean Dairy Holdings LLC	Huntley	Fluid Milk Manufacturing
Dean Foods Co	Rockford	Fluid Milk Manufacturing
Dean Foods Co.-Belvidere Ice Cream Plt.	Belvidere	Ice Cream and Frozen Dessert Manufacturing
Dfa Dairy Brands Fluid DBA Kemps Cultured	Rockford	Fluid Milk Manufacturing
East Side Jersey Dairy - O'fallon, Il	O'fallon	Fluid Milk Manufacturing
Erie Foods International Inc	Rochelle	Dry, Condensed, and Evaporated Dairy Product Manufacturing
Faribault Foods	Litchfield	Dry, Condensed, and Evaporated Dairy Product Manufacturing
Lifeway Foods, Inc	Morton Grove	Fluid Milk Manufacturing
Muller-Pinehust Dairy	Rockford	Fluid Milk Manufacturing
Nestle USA Inc	Jacksonville	Dry, Condensed, and Evaporated Dairy Product Manufacturing
Nuestro Queso LLC	Kent	Cheese Manufacturing
Oberweis Dairy	North Aurora	Fluid Milk Manufacturing
Prairie Farms	Quincy	Fluid Milk Manufacturing
Prairie Farms Dairy	Carlinville	Fluid Milk Manufacturing
Prairie Farms Dairy - Granite City, Il	Granite City	Fluid Milk Manufacturing
Prairie Farms Dairy Inc	Quincy	Fluid Milk Manufacturing
Tate And Lyle Custom Ingredients Inc	Sycamore	Fluid Milk Manufacturing
Tillamook Illinois LLC	Decatur	Fluid Milk Manufacturing

Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.