Central Plains Dairy Expo Date Mar 25-27, 2025 Location Sioux Falls, SD March 25-27, 2025 Event Website Our Products More Upcoming Events. Show all 30—3Sep-Oct 2025 World Dairy Expo Alliant Energy Center, Madison, WI 21—23Oct 2025 Cornell Nutrition Conference Doubletree by Hilton, East Syracuse, NY 12Nov 2025 Penn State Dairy Workshop Preconference Wyndham Lancaster Resort and Convention Center