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Washington County
Sign in to saveAlso known as Washington County, Ohio, Washington County, OH
county in Ohio, United States
Key facts
- Country
- United States
- State
- Ohio
- Founded
- July 27, 1788
- Named after
- George Washington
- Seat
- Marietta
- Largest city
- Marietta
- Total
- 640 sq mi (1,700 km )
- Land
- 632 sq mi (1,640 km )
- Water
- 8.0 sq mi (21 km ) 1.3%
- Estimate 2025
- 58,389
- Density
- 93/sq mi (36/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
- 6th
- Website
- www .washingtongov .org
via Wikipedia infobox
~14 min read
Encyclopedic overview
Washington County is a county located in the southeastern part of the U.S. state of Ohio. As of the 2020 census, the population was 59,711. Its county seat is Marietta. The county, the oldest in the state, is named for George Washington. Washington County comprises the Marietta, OH Micropolitan Statistical Area, which is also included in the Parkersburg-Marietta-Vienna, WV-OH Combined Statistical Area.
Geography
Excerpted from Wikipedia’s “Washington County” article, available under the CC BY-SA 4.0 licence.