Steffenville is an unincorporated community in southwestern Lewis County, Missouri, United States.
[1] It is located on Missouri Supplemental Route D, approximately 22 miles southwest of Canton.
The community is part of the Quincy, IL–MO Micropolitan Statistical Area.
A post office called Steffenville was established in 1872, and remained in operation until 1988.
This Lewis County, Missouri state location article is a stub.