There was a total of almost $11 million of land and rural real estate for sale in Calhoun County, Arkansas, recently on Land.com. The total of all Calhoun County farms, ranches, and rural real estate for sale was nearly 100,000 acres. Calhoun County ranks 70th out of 75 counties in the Natural State for the combined amount of land currently advertised for sale. Hampton had the most land for sale. Manufacturing and related services are the largest economic sectors in Calhoun County. Calhoun County is the 48th biggest county (632 square miles) in Arkansas. It's located in the Timberlands Arkansas region of Arkansas.