Swisher, IA has a population of 846 and is the 16,220th largest city in the United States. The population density is 1,046 per sq mi which is 1815% higher than the Iowa average and 1055% higher than the national average. The median age in Swisher is 42 which is approximately 11% higher than the Iowa average of 38. In Swisher, 77% of the population over 15 years of age are married, 96% speak English and 0% speak Spanish. 87% of Swisher residents were born in Iowa, 12% were born out of state, 0% were born outside of the United States and 0% were foreign born.