Washington County, Ohio, United States
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- Washington County
- County
- Located in southeastern Ohio along the Ohio River and the boundary with West Virginia; 145 km (90 mi) southeast of Columbus; County Seat: Marietta.
- Established on 27 July 1788, named for the first President of the United States (1789-97), George Washington (1732-1799).
- 39.501462739° 30' 05.3"N-81.416509381° 24' 59.4"W
- 62,254
- 189 m
- Monroe NE
- Tyler (West Virginia) E
- Pleasants (West Virginia) SE
- Wood (West Virginia) S
- Meigs SW
- Athens W
- Morgan W
- Noble N
- 658759202
- Updated May 6, 2020