Melzo is an unincorporated community in southern Jefferson County, in the U.S. state of Missouri. The community is located on Missouri Route E just north of the Jefferson-St. Francois county line. DeSoto is eight miles to the north and Bone Terre is approximately six miles to the south.Missouri Atlas & Gazetteer, DeLorme 1st ed. 1998, p. 48
History A post office called Melzo was established in 1906, and remained in operation until 1938. An early postmaster gave the community the first name of his son, Melzo Higginbotham.
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