Plum Tree is an unincorporated community in Rock Creek Township, Huntington County, Indiana.
Never officially platted, Plum Tree took its name from a large, wild plum tree. A post office was established at Plum Tree in 1876, and remained in operation until it was discontinued in 1893.
Plum Tree is located at 40°44′32″N 85°23′33″W / 40.74222°N 85.39250°W.
- ^ "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- ^ Bash, Frank Sumner (1914). History of Huntington County, Indiana: A Narrative Account of Its Historical Progress, Its People, and Its Principal Interests. The Lewis Publishing Company. p. 163.
- ^ "Huntington County". Jim Forte Postal History. Retrieved 18 October 2014.