Apache County Cooperative Extension provides research-based programs in Family, Consumer and Health Science, Agriculture and Natural Resources, and 4-H Youth Development. Apache County, in northeastern Arizona, contains parts of the Navajo Indian Reservation, the Fort Apache Indian Reservation, and Petrified Forest National Park.

Canyon de Chelly National Monument is entirely within the county. The county has over 11,000 square miles, making it the third largest in the state.