The Spokane, Washington Spokesman-Review published the following figures on March 21, 2010, gleaned from the U.S. Fish and Wildlife Service: In addition to at least two packs each in the states of Washington and Idaho, they have counted a minimum population of 843 wolves in Idaho, 524 in Montana, and 320 in Wyoming.
The USFWS figure for Wyoming includes the Yellowstone wolves, which biologist Doug Smith reports has declined from 171 in 2008 to 56 this year. The current scourge of mange in Yellowstone wolves accounts for much of this decline, with distemper in pups and predation by other wolves contributing.