Scarville is a city in Winnebago County, Iowa, United States. The population was 74 at the time of the 2020 census. Scarville was platt…Scarville is a city in Winnebago County, Iowa, United States. The population was 74 at the time of the 2020 census. Scarville was platted in 1899, and incorporated as a city in 1904. The city was named for Ole Scar, a local landowner.