Morenci is a census-designated place in Greenlee County, Arizona, United States. The population was 1,879 at the 2000 census. The biggest employer in Morenci is Phelps Dodge Corporation, the owner of the Morenci Mine, the largest copper mining operation in North America, and one of the largest copper mines in the world. The town was a site of the Arizona Copper Mine Strike of 1983. The large open-pit mine is north of the town. Morenci apartments for rent comparison page shows most up to date rent information on Morenci apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.