Fayetteville, AR has a population of 80,552 and is the 432nd largest city in the United States. The population density is 1,491 per sq mi which is 2588% higher than the Arkansas average and 1546% higher than the national average. The median age in Fayetteville is 27 which is approximately 28% lower than the Arkansas average of 38. In Fayetteville, 40% of the population over 15 years of age are married, 91% speak English and 5% speak Spanish. 45% of Fayetteville residents were born in Arkansas, 47% were born out of state, 1% were born outside of the United States and 7% were foreign born.