1990 Census of Population and Housing: Poverty Rates
Montana Indian Reservations Percent of People Below Poverty, 1989
Blackfeet Reservation 50.1
Crow Reservation and Trust Lands 50.0
Flathead Reservation 38.5
Fort Belknap Reservation and Trust Lands 46.9
Fort Peck Reservation 46.6
Northern Cheyenne Reservation and Trust Lands 51.5
Rocky Boy's Reservation and Trust Lands 48.9
Source:  1990 Census of Population and Housing, U.S. Census Bureau