Serving the Tri-State Area and beyond for nearly 60 years. United Dairy’s reputation for high quality milk begin with a small herd of dairy cows. Today, United Dairy has been serving the over seven states and expanded to incorporate local worker and farmers across the tri-state area. All are dedicated to delivering you the freshest product every day. United Dairy has three manufacturing plants and nine distribution center. All are dedicated to delivering you the freshest product every day.