Williams et al. say this species is found from "Mountain West from southern NM and AZ, to AK, CA Northern Coast Ranges and southern Sierra Nevada, Tundra/Taiga of AK, and northwestern Canada to Hudson Bay. .. Common throughout its range.
Reference: Williams, Paul, Robbin Thorp, Leif Richardson and Sheila Colla. 2014. Bumble Bees of North American: An Identification Guide. Princeton University Press.