Mottled sculpin are widespread in North America, with a broadly disjunct range. Eastern populations occur throughout the Great Lakes region, north to Hudson Bay and throughout much of eastern Canada and south to northern Alabama and Mississippi. There is a disjunct population in Missouri and a large western population in the northern Rocky Mountain states, from British Columbia and Alberta south to southern Nevada and northern New Mexico.
Biogeographic Regions: nearctic (Native )
- Becker, G. 1983. Fishes of Wisconsin. Madison, Wisconsin: The University of Wisconsin Press.
- Froese, R. 2008. "fishbase.org" (On-line). Accessed December 10, 2008 at http://fishbase.sinica.edu.tw/summary/SpeciesSummary.php?id=4065.
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