Pilot Project Tribes & Materials

Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation

Tribal code
Reservation land base: 2,093,318 acres (3,289 square miles)
Population: 10,321 (as of 2000 Census)

About Fort Peck: The Fort Peck Indian Reservation is home to the Assiniboine and Sioux Tribes, which are two separate Nations and comprise numerous bands and divisions within. Located in northeast Montana, the Reservation extends over four counties and is the 9th largest Indian reservation in the United States. The Assiniboine and Sioux Tribes of Fort Peck have an estimated 10,000 enrolled members with approximately 6,000 members living on the Reservation. The Tribe received federal approval to exercise special domestic violence criminal jurisdiction as a part of DOJ's Pilot Project on March 6, 2015.


Confederated Tribes of the Umatilla Indian Reservation

Tribal code 
Reservation land base: 173,470 acres
Population: 2,927 (as of 2000 Census)

About Umatilla: The Cayuse, Umatilla and Walla Walla people make up the Confederated Tribes of the Umatilla Indian Reservation. The three bands were brought together on the Umatilla Indian Reservation, established by a Treaty with the U.S. Government in 1855. The bands were united as a single tribal government in 1949 when their leaders adopted a constitution and by-laws. With over 2900 tribal members and a land base of 173,470 acres, the Umatilla Tribes began exercising special domestic violence criminal jurisdiction as part of DOJ's Pilot Project on February 20, 2014.


Pascua Yaqui Tribe

Tribal code
Reservation land base: 1,194 acres
Population: 3,315 (as of 2000 Census)

About Pascua Yaqui: The Pascua Yaqui Tribe is located in southwest Arizona on a land base of 1194 acres. With a tribal population of 3315 (and over 90% American Indian), the Pascua Yaqui Tribe began exercising special domestic violence criminal jurisdiction as part of DOJ's Pilot Project on February 20, 2014.


Sisseton Wahpeton Oyate of the Lake Traverse Reservation

Tribal code
Reservation land base: 106,153 acres
Population: 10,408 (as of 2000 Census)

About Sisseton Wahpeton Oyate: The Sisseton and Wahpeton comprise two subdivisions of the Dakotah Indians and reside on the Lake Traverse Reservation, established by treaty in 1867. This reservation extends into five counties in northeast South Dakoka and two counties in southeast North Dakota. The Nation has 13,177 enrolled members with approximately 9,894 members living on the Reservation. The Sisseton Wahpeton Oyate received approval to exercise special domestic violence criminal jurisdiction as part of the DOJ Pilot Project on March 6, 2015.


Tulalip Tribes

Tribal code 
Reservation land base: 22,567 acres
Population: 9,246 (as of 2000 Census)

About Tulalip: The Tulalip Tribes are the successors in interest to the Snohomish, Snoqualmie, Skykomish and other allied tribes and bands signatory to the 1855 Treaty of Point Elliott. With a tribal population of 4000 and growing—and 2500 members residing on the 22,000 acre Tulalip Indian Reservation, the Tulalip Tribes began exercising special domestic violence criminal jurisdiction as part of the DOJ Pilot Project on February 20, 2014.