The overall value of land for sale in Sevier County, Utah, recently on Land.com was nearly $47 million. This represents almost 2,000 acres of land for sale in Sevier County. Sevier County ranks 16th in the Beehive State for the combined amount of land currently advertised for sale. Monroe had the most land for sale. Sevier County is Utah's 17th biggest county (1,918 square miles). It's located in the Southwest Utah region of Utah.