DeWitt, AR has a population of 3,197 and is the 8,489th largest city in the United States. The population density is 1,068 per sq mi which is 1826% higher than the Arkansas average and 1079% higher than the national average. The median age in DeWitt is 38 which is approximately equal to the Arkansas average of 38. In DeWitt, 51% of the population over 15 years of age are married, 96% speak English and 4% speak Spanish. 86% of DeWitt residents were born in Arkansas, 13% were born out of state, 0% were born outside of the United States and 1% were foreign born.