query: How large is Navajo County, Arizona?
passage: Navajo County, Arizona
According to the U.S. Census Bureau, the county has a total area of 9,960 square miles (25,800km2), of which 9,950 square miles (25,800km2) is land and 9.3 square miles (24km2) (0.09%) is water.[3]
passage: Navajo
The states with the largest Navajo populations are Arizona (140,263) and New Mexico (108,306). Over three-quarters of the Navajo population reside in these two states.[3]