Of 115 counties in the Ozark State, Marion County ranks 97th by size (444 square miles). Marion County is in Northeast Missouri. Recent Land Network data includes approximately 1,000 acres of horse farms for sale in Missouri's Marion County, which is valued at a combined $143,000. Browse all Marion County horse farms for sale on the Land Network to find the equestrian property that's right for your future needs, whether you're a horse breeder, equestrian business or simply horse lover looking for stable facilities, grooming pens or grazing pasture for your own horses. The most common type of land for sale by combined acreage in Marion County is homesite.