Silver City, IA has a population of 224 and is the 23,954th largest city in the United States. The population density is 1,030 per sq mi which is 1785% higher than the Iowa average and 1037% higher than the national average. The median age in Silver City is 44 which is approximately 17% higher than the Iowa average of 38. In Silver City, 77% of the population over 15 years of age are married, 94% speak English and 3% speak Spanish. 64% of Silver City residents were born in Iowa, 36% were born out of state, 0% were born outside of the United States and 0% were foreign born.