Central City, IA has a population of 1,320 and is the 13,468th largest city in the United States. The population density is 1,396 per sq mi which is 2456% higher than the Iowa average and 1441% higher than the national average. The median age in Central City is 38 which is approximately 1% higher than the Iowa average of 38. In Central City, 56% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 87% of Central City residents were born in Iowa, 12% were born out of state, 0% were born outside of the United States and 1% were foreign born.