Wilhoit is a census-designated place in Yavapai County, Arizona, United States. The population was 664 at the 2000 census. Wilhoit is located at 34°25′8″N 112°36′16″W / 34.41889°N 112.60444°W. According to the United States Census Bureau, the CDP has a total area of 15.7 square miles, all land.