Morenci, AZ has a population of 1,742 and is the 11,841st largest city in the United States. The population density is 1,812 per sq mi which is 3053% higher than the Arizona average and 1900% higher than the national average. The median age in Morenci is 29 which is approximately 23% lower than the Arizona average of 37. In Morenci, 43% of the population over 15 years of age are married, 77% speak English and 19% speak Spanish. 64% of Morenci residents were born in Arizona, 29% were born out of state, 1% were born outside of the United States and 5% were foreign born.