Glenham, SD

ZIP code 57631 belongs to Eagle Butte, a small town in South Dakota. Situated on the Cheyenne River Indian Reservation, the area is rich in Lakota culture. Key landmarks include the Cheyenne River Agency and the Cheyenne River Sioux Tribe Powwow Grounds, where traditional ceremonies and festivities are held. The town serves as a hub for the local community, offering essential services and a glimpse into Native American heritage.