Lang's Constantia Cove Diner Address: 1427 State Route 49, Constantia, NY 13044 Phone: (315) 623-9474 Restaurants, Diner Other Businesses: Joa's Pizza at 1588 State Route 49, Constantia, NY 13044 S & J's Pizza at 1418 State Route 49, Constantia, NY 13044