Millville is an unincorporated community in Ray County, in the U.S. state of Missouri and part of the Kansas City metropolitan area.
The community is on Missouri Route K and is approximately 8.5 miles northeast of Richmond. The East Fork of Crooked River flows past the west side of the community.Missouri Atlas & Gazetteer, DeLorme, 1st ed., 1998, p. 28
History Millville was platted in 1873, and named for a watermill near the original town site. A post office called Millville was established in 1849, and remained in operation until 1906.
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