A total of almost 2,000 acres were listed for sale in Montgomery County recently; the overall value of all Montgomery County farms and ranches for sale was approximately $86 million. Montgomery County ranks 36th out of 88 counties in the Buckeye State for the total number of acres of land currently advertised for sale. Of all locations in Montgomery County with farms and ranches for sale, Dayton had the most land for sale. Montgomery County is Ohio's 43rd biggest county (464 square miles). It's located in the Southwest Ohio region of Ohio.