Indian Affairs | Flandreau Santee Sioux

Flandreau Santee Sioux Tribe

8:00 A.M. – 5:00 P.M.

Flandreau Santee Sioux Tribe
Anthony Reider, President
P.O. Box 283
603 W. Broad Ave.
Flandreau, South Dakota 57028

Telephone: (605) 997-3891
Telefax: (605) 997-3878


Trust Land Base: 2,184 acres

Estimated Tribal Enrollment: 736

The Flandreau Santee Sioux Tribe is provided services from the Bureau of Indian Affairs under the direction of the Regional Director. The Tribal Council consists of the Tribal President, Vice President, Secretary, Treasurer, and 4 Trustees. The Tribe provides services to 423 tribal members who live on reservation.

Otters on the Big Sioux River