Painted Desert badlands as seen from Tawa Point in Petrified Forest National Park in northeastern Arizona, United States – Finetooth, CC BY-SA 3.0 – Wikimedia Commons Apache County is located in Arizona. About 71,474 people live here. Between 2010 and 2020, the population declined from 71,518 to 66,021. The area covers about 29,056.0 square kilometers. The region is divided into 3 Municipalities. The region was founded in 1879. The name originates from Apache (several culturally related groups of indigenous peoples of t…) Apache County is county in Arizona, United States. More information at www.apachecountyaz.gov.