De Graff is a city in Swift County, Minnesota, United States. The population was 110 at the 2020 census.
History
thumb|City Office in background past trackDe Graff was laid out in 1875, and named for Andrew De Graff, a railroad agent. A post office was established at De Graff in 1873, and remained in operation until 1996. De Graff was incorporated in 1881.
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|footnote=U.S. Decennial Census<br>2020 Census