There was a total of almost $56 million of land and rural real estate for sale in Marion County, Alabama, recently on Land.com. The total size of all Marion County land for sale was approximately 7,000 acres. Marion County ranks 33rd out of 67 counties in the Cotton State for the total acreage of land currently advertised for sale. Of all locations in Marion County with farms, ranches, and rural real estate for sale, Hamilton had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Marion County. Marion County is Alabama's 28th largest county (743 square miles). It's located in the Mountains Alabama region of the state.