Photo: Johnson House and Mill, ca. 1835, 3906 Greathouse Springs Road, Johnson, AR 72762 Listed on the National Register of Historic Places in 1985. Photographed by User:Brandonrush (own work), 2011, [cc-by-3.0 (creativecommons.org/licenses/by/3.0)], via Wikimedia Commons, accessed January, 2013.
Washington County administrative offices are located at 280 North College Avenue, Fayetteville AR 72701; phone: 479‑444‑1711.
Located in the Ozark Mountains, Washington County was established in 1828. It's land area is more than 950 square miles. The census of 2010 recorded nearly 3,000,000 county residents.