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Sisseton Wahpeton Oyate

Reservation: Former Lake Traverse; parts of Marshall, Day, Codington, Grant and Roberts Counties
Division: Santee
Bands: Sisseton (People of the Marsh), Wahpeton (People on Lake Traverse)
Land Area: 106,153 acres (without boundaries)
Tribal Headquarters: Agency Village, SD
Time Zone: Central
Traditional Language: Dakota
Enrolled members living within former reservation area: 9,894
Major Employers: Dakota Sioux Casino, tribal government, Bureau of Indian Affairs
Sisseton Wahpeton Oyate's 2010 Statistical Profile (pdf)


Charter: None; Constitution and Bylaws: Yes 
Date Approved: October 16, 1946
Name of Governing Body: Sisseton-Wahpeton Sioux Tribal Council
Number of council members: (7) seven council members
Dates of Constitutional amendments: November 21, 1978, June 9, 1980
Number of Executive Officers: (3) Tribal Chairman, Vice Chairman, and Tribal Secretary


All elected representatives, including executive committee members and council members, serve two year terms. Elections are not staggered. The Tribe does not elect a Treasurer, the Vice-Chairman’s responsibilities include all financial duties for the SWO.
Number of Election districts or communities: 7

Current Tribal Leaders


The Council shall meet regularly on the first Tuesday, Wednesday and third Thursday of each month or upon call of the Chairman of the Council.

Quorum number: General Council members is ten percent of eligible members

Education and Media

Tribal College: Sisseton-Wahpeton Community College, Sisseton, SD
Weekly newspaper: Sota Iya Ye Yapi

Notable Tribal Members

Paul War Cloud, a Sisseton-Wahpeton, was born in 1930 near Sica Hollow. A self-taught artist, War Cloud realistically depicted Dakota culture and tradition in his paintings. Many of his works are on display at the Tekakwitha Fine Arts Center in Sisseton. A War Cloud mural, "Unity Through the Great Spirit," hangs at the Cultural Heritage Center in Pierre. War Cloud died in 1973.

Current Chairman: Donovin White

Sisseton-Wahpeton Constitution (PDF)
Visit Sisseton-Wahpeton Oyate's Web site

Tribal Contact Information

PO Box 509
Agency Village, SD 57262-0509
Phone (605) 698-3911
Fax (605) 698-3708