Joseph City is a Census Designated Place located in Navajo County, Arizona, United States. It is located on Interstate 40, approximately eighty miles east of Flagstaff and about thirty-five miles west of Petrified Forest National Park. In 2010, there were 1,386 inhabitants.

Navajo County is in the northern part of the U.S. state of Arizona. As of the 2020 census, its population was 106,717. The county seat is Holbrook.