Pocahontas, AR has a population of 6,470 and is the 5,481st largest city in the United States. The population density is 886 per sq mi which is 1498% higher than the Arkansas average and 878% higher than the national average. The median age in Pocahontas is 39 which is approximately 3% higher than the Arkansas average of 38. In Pocahontas, 57% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 62% of Pocahontas residents were born in Arkansas, 35% were born out of state, 1% were born outside of the United States and 2% were foreign born.