Wallace is an unincorporated community in southern Buchanan County, Missouri (USA). It is located about twelve miles northwest of Platte City. Its post office has closed and mail now comes from nearby Dearborn.
Wallace was laid out in 1872. It was named for a railroad official.
- Eaton, David Wolfe (1916). How Missouri Counties, Towns and Streams Were Named. The State Historical Society of Missouri. p. 264.
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