Thornton Map
Thornton is a city in Cerro Gordo County, Iowa, United States. The population was 422 at the 2000 census. It is part of the Mason City Micropolitan Statistical Area.
Thornton is located at 42°56?42?N 93°23?3?W / 42.945°N 93.38417°W / 42.945; -93.38417 (42.944972, -93.384115).
According to the United States Census Bureau, the city has a total area of 1.2 square miles (3.2 km²), all of it land.
Nearby cities include Rockwell, Klemme, Latimer, Belmond, Clear Lake.