The combined value of land for sale in Ohio's Belmont County recently on Land.com was around $8 million. This represents almost 1,000 acres of farms, ranches, hunting land and other land for sale in Belmont County. Belmont County ranks 66th out of 88 counties in the Buckeye State for the combined amount of land currently advertised for sale. Saint Clairsville had the most land for sale. Economically speaking, Belmont County's is largely dependent on mining and mineral extraction-related businesses and services. Belmont County is the 24th biggest county (541 square miles) in Ohio. It's located in the Southeast Ohio region of the state.