Located in North Central Wisconsin, 1,576-square-mile Marathon County is one of the ten biggest counties in the state. The most common type of land for sale by combined acreage in Marathon County is house. Browse all Marathon 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.