Kane County is a county located in the U.S. state of Utah. As of the 2010 census, the population was 7,125. Its county seat and largest city is Kanab. The county was named for Col. Thomas L. Kane, a friend of the Mormon settlers.GeographyAccording to the U.S. Census Bureau, the county has a total area of, of which is land and (2.9%) is water. The Colorado River, reformed as Lake Powell, forms its eastern boundary. Arizona lies on the southern boundary. Grand Staircase-Escalante National Monument covers much of the county. A rugged and inhospitable country of deserts, mountains and cliffs makes up the terrain, with breath-taking scenery in every area. Parts of Bryce Canyon National Park and Zion National Park extend into the northern and western portions of the county. The eastern part of the county is part of the Glen Canyon National Recreation Area.Adjacent counties Washington County (west) Iron County (northwest) Garfield County (north) San Juan County (east) Mohave County, Arizona (southwest) Coconino County, Arizona (south)