Jefferson County, Ohio, United States
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- Jefferson County
- County
- Located in east central Ohio along the boundary with West Virginia, 64 km (40 mi) south of Youngstown; County Seat: Steubenville.
- Named for Thomas Jefferson (1743-1826), third President of the United States from 1801-1809. (US-T801/p277)
- 40.366734540° 22' 00.2"N-80.750080780° 45' 00.3"W
- 80,298
- 316 m
- Columbiana N
- Hancock (West Virginia) NE
- Brooke (West Virginia) SE
- Ohio (West Virginia) S
- Belmont SW
- Harrison W
- Carroll NW
- 460992139
- Updated Apr 21, 2020