The value of all farms, ranches, hunting land and other land for sale in Washita County, Oklahoma, recently was almost $6 million, representing a combined 309 acres of land for sale in Washita County. Washita County ranks 66th in the Sooner State for the total number of acres of land currently advertised for sale. Among cities in Washita County with farms, ranches, and rural real estate for sale, Sentinel had the most land for sale. Economically speaking, Washita County's is largely dependent on mining and mineral extraction-related businesses and services. Washita County is Oklahoma's 19th largest county (1,008 square miles). It's located in the Great Plains Country Oklahoma region of the state.