The Marshall County Courthouse is located at 600 7th Street, Moundsville, WV 26041; phone: 304-845-2130.
Lying along the Mason-Dixon Line (the county's southern border) and the Ohio River (the county's western border) Marshall County was established in 1835 from part of Ohio County.
- Bennett Cockayne House
- Bushrod Washington Price House
- Ferrell-Holt House
- McMechen Lockmaster Houses
- Moundsville Commercial Historic District