Of 115 counties in the state, Marion County is 97th in terms of its size (444 square miles). Marion County is in Northeast Missouri. Recent Land Network data shows 1,000 acres of horse properties 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 undeveloped land.