1. Custer Waste Water Treatment 25058 Spring Pl, Custer, SD 57730 Coordinate: 43.77228,-103.56849 Phone: (605) 673-2638
2. Custer Mayor Office 622 Crook St, Custer, SD 57730 Coordinate: 43.76765,-103.59854 Phone: (605) 673-4824