Nora Springs is a city that is partially in Cerro Gordo and Floyd counties in the U.S. state of Iowa, along the Shell Rock River. The population was 1,369 at the time of the 2020 census.

Cerro Gordo County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 43,127. Its county seat is Mason City. The county is named for the Battle of Cerro Gordo, which took place during the Mexican–American War.