High Quality Content by WIKIPEDIA articles! Jerome is a town in the Black Hills of Yavapai County, in the U.S. state of Arizona. Built in the late 19th century on Cleopatra Hill, overlooking the Verde Valley, it is more than 5,000 feet (1,500 m) above sea level. It is about 100 miles (160 km) north of Phoenix along State Route 89A between Sedona and Prescott. Supported in its heyday by rich copper mines, it was home to more than 10,000 people in the 1920s. As of the 2010 census, its population was 444.