Fort Defiance, AZ

ZIP code 86504 encompasses the community of Fort Defiance in Apache County, Arizona. This area is best known for being the home of the largest hospital on the Navajo Nation, the Tsehootsooi Medical Center. Additionally, the Window Rock, a natural sandstone arch formation that is a sacred site for the Navajo people and the seat of the Navajo Nation government, is also located within this ZIP code.