Walcott is a city in Muscatine and Scott counties in the U.S. state of Iowa. The population was 1,629 at the 2010 census. Walcott's interchange on Interstate 80 is home to an enormous complex of restaurants, motels and truck stops, including the Iowa 80 truck stop which is the world's largest.Most of Walcott is part of the Davenport–Moline–Rock Island, IA-IL Metropolitan Statistical Area, but the Muscatine County portion of the city is considered part of the Muscatine Micropolitan Statistical Area.