Hiwasse is an unincorporated census-designated place in Benton County, Arkansas, United States. As of the 2010 census, its population is 497. It is the location of (or is the nearest community to) Hiwasse Bank Building, which is located at Main St. , AR 279 and Banks House, which is located on AR 72 west of Hiwasse. Both are listed on the National Register of Historic Places. Hiwasse faced a great division in 2007-2008 when two groups faced off about the incorporation of Hiwasse.