Churdan, IA has a population of 410 and is the 20,738th largest city in the United States. The population density is 194 per sq mi which is 255% higher than the Iowa average and 114% higher than the national average. The median age in Churdan is 39 which is approximately 2% higher than the Iowa average of 38. In Churdan, 64% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 80% of Churdan residents were born in Iowa, 19% were born out of state, 0% were born outside of the United States and 1% were foreign born.