Pocahontas, IA has a population of 1,789 and is the 11,683rd largest city in the United States. The population density is 887 per sq mi which is 1524% higher than the Iowa average and 879% higher than the national average. The median age in Pocahontas is 51 which is approximately 33% higher than the Iowa average of 38. In Pocahontas, 70% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 80% of Pocahontas residents were born in Iowa, 20% were born out of state, 0% were born outside of the United States and 0% were foreign born.