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is a village in Jefferson County, Ohio, United States, along the Ohio River. The population was 3,631 at the 2000 census. In 1900, its only manufacturing plant was a steel mill owned by Carnegie Steel Company. Past population figures are: 1900, 2,954; 1910, 4,049; 1940, 5,192.
Mingo Junction is part of the Weirton–Steubenville, WV-OH Metropolitan Statistical Area.
Mingo Junction is located at (40.319869, -80.612240). It is in the Eastern time zone, and the average elevation is 797 ft.
According to the United States Census Bureau, the village has a total area of 2.5 square miles (6.6 km²), all of it land.
The Mingo Indian tribe once had a settlement at the present day location of this village, and serves as the source of the town's name.