| Name | Marion County |
| State | West Virginia |
| FIPS Code | 54049 |
| County Seat | Fairmont |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 56,460 |
| Population Growth Rate(2000-2022) | -0.38% |
| Majority Ethnicity | White 96.48% |
| Public School Majority Ethnicity | White 89% |
| Partisan Voting Index | Republican:+14 |
| Unemployment Rate (January 2025) | 3.7% |
| Area Code(s) | 304 / 681 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 96.48% |
| African American | 3.01% |
| Hispanic | 0.1% |
| Asian | 0.4% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 89.17% |
| African American | 3.94% |
| Hispanic | 1.33% |
| Asian | 0.63% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 0.08% |