| Name | Marshall County |
| State | West Virginia |
| FIPS Code | 54051 |
| County Seat | Moundsville |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 32,993 |
| Population Growth Rate(2000-2022) | -7.6% |
| Majority Ethnicity | White 98.41% |
| Public School Majority Ethnicity | White 95% |
| Partisan Voting Index | Strongly Republican:+24 |
| Unemployment Rate (January 2025) | 3.9% |
| Area Code(s) | 304 / 681 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 98.41% |
| African American | 0.72% |
| Hispanic | 0.02% |
| Asian | 0.22% |
| Native American | 0.31% |
| Hawaiin/Pacific Islander | 0.31% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 94.77% |
| African American | 1% |
| Hispanic | 1.23% |
| Asian | 0.24% |
| Native American | 0.09% |
| Hawaiin/Pacific Islander | 0.03% |