Endangered: the Mexican prairie dog, which inhabits northeastern Mexico.
Threatened: the Utah prairie dog, a rare prairie dog that inhabits the short-grass prairies of southwestern Utah.
Status to be determined: the white-tailed prairie dog, whose habitat is the high-elevation sagebrush plains of Colorado, Utah and Wyoming. It can also be found in southern Montana.
Status to be determined: Gunnison's prairie dog, which lives in the Four Corners region of New Mexico, Colorado, Utah and Arizona.
Status to be determined: the black-tailed prairie dog, whose short-grass prairie habitat once included parts of Texas, New Mexico, Arizona, Kansas, Colorado, Nebraska, South Dakota, North Dakota, Wyoming and Montana. It is being considered for a threatened-species listing by the U.S. Fish and Wildlife Service.