Walnut Ridge, AR has a population of 4,723 and is the 6,713th largest city in the United States. The population density is 256 per sq mi which is 361% higher than the Arkansas average and 182% higher than the national average. The median age in Walnut Ridge is 39 which is approximately 2% higher than the Arkansas average of 38. In Walnut Ridge, 60% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 77% of Walnut Ridge residents were born in Arkansas, 22% were born out of state, 0% were born outside of the United States and 1% were foreign born.