Custer County is in Black Hills & Badlands South Dakota. Of the 66 counties in the state, Custer County is 16th in terms of its size (1,559 square miles). The total value of approximately 1,000 acres of equestrian property recently listed for sale in Custer County, South Dakota, was almost $12 million. The average price of equestrian property for sale in Custer County was $790,720. Browse all South Dakota 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.