Perkins County, established in 1909 and named for Alva Adams Perkins, occupies northwestern South Dakota along the North Dakota border. Its county seat, Bison, and other small communities like Lemmon and Prairie City reflect classic Western prairie heritage. The landscape features rolling rangeland, creeks, and wide horizons perfect for ranching and grain farming. The area is extremely rural, with a population density of under 2 people per square mile. Homes are predominantly ranch-style houses, farmsteads, and modular units on large tracts of land. Real-estate prices are modest: typical homes run $140 K – $220 K, while working ranches can range $400 K – $900 K + depending on acreage. Building new averages $180 per sq ft, or around $350 K – $400 K. The nearest larger city is Spearfish, about 100 miles south. Residents enjoy strong community ties, unspoiled prairie vistas, and affordable land—a haven for ranchers and self-sufficient families seeking solitude and sustainability.