Tiffin is an unincorporated community in southern St. Clair County, in the U.S. state of Missouri. [1]
The community is on Missouri Route 82 seven miles northeast of El Dorado Springs and fourteen miles southwest of Osceola. [2] Little Clear Creek, a tributary to Clear Creek, flows past one mile west of the community and the upper reaches of the Harry S Truman Reservoir are 2.5 miles to the north. [2]
Variant names were "New Tiffin" and "Whitley". [1] The community was platted under the name Whitley in 1890. [3] The Tiffin post office closed in 1955. [4]