South Texas is typically classified as the area between the San Antonio metro area and south to the Rio Grande and Gulf of Mexico. Land for sale in Texas's Calhoun County recently totaled approximately $90 million and nearly 4,000 acres. Calhoun County ranks 107th out of 254 counties in the state for the total acreage of land currently advertised for sale. Of all locations in Calhoun County with farms, ranches, and rural real estate for sale, Port Lavaca featured the most land for sale. Manufacturing and related services are the largest economic sectors in Calhoun County. Calhoun County is the 74th largest county (1,032 square miles) in Texas. It's located in the Coastal Prairie Middle Texas region of the state.