The pink heelsplitter occurs in the Mississippi drainage from Pennsylvania, south to northern Alabama and Mississippi, west to eastern Oklahoma and north thorough the eastern Dakotas. In Canada it is found in the Red River of the North and the Winnipeg river. In the St. Lawrence drainage, it is found from Lake Huron to Lake Champlain.
In Michigan Potamilus alatus is found at the lower stretches of rivers in the lower peninsula, and in Lakes Erie and St. Clair.
Biogeographic Regions: nearctic (Native )