Clarendon, AR has a population of 1,655 and is the 12,124th largest city in the United States. The population density is 905 per sq mi which is 1532% higher than the Arkansas average and 899% higher than the national average. The median age in Clarendon is 42 which is approximately 12% higher than the Arkansas average of 38. In Clarendon, 58% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 84% of Clarendon residents were born in Arkansas, 15% were born out of state, 0% were born outside of the United States and 1% were foreign born.