Marshall County
Also known as Marshall County, West Virginia, Marshall County, Virginia, Marshall County, WV
county in West Virginia, United States
Key facts
- Country
- United States
- State
- West Virginia
- Founded
- March 12, 1835
- Seat
- Moundsville
- Largest city
- Moundsville
- Total
- 312 sq mi (810 km )
- Land
- 305 sq mi (790 km )
- Water
- 6.7 sq mi (17 km ) 2.2%
- Estimate 2025
- 29,159
- Density
- 100/sq mi (38.7/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
Article
Marshall County is a county in the U.S. state of West Virginia. At the 2020 census, the population was 30,591. Its county seat is Moundsville. With its southern border at what would be a continuation of the Mason-Dixon line to the Ohio River, it forms the base of the Northern Panhandle of West Virginia.
Marshall County is part of the Wheeling metropolitan area.