| Name | Marshall County |
| State | Kentucky |
| FIPS Code | 21157 |
| County Seat | Benton |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 31,717 |
| Population Growth Rate(2020-2024) | 0.18% |
| Majority Ethnicity | White 96.73% |
| Public School Majority Ethnicity | White 93% |
| Partisan Voting Index | Strongly Republican:+28 |
| Unemployment Rate (May 2026) | 5.4% |
| Sales Tax Rate (2025) | 6% |
| Area Code(s) | 270 / 364 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 96.73% |
| African American | 0.73% |
| Hispanic | 1.9% |
| Asian | 0.38% |
| Native American | 0.25% |
| Hawaiin/Pacific Islander | 0.01% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 92.79% |
| African American | 0.47% |
| Hispanic | 3.47% |
| Asian | 0.4% |
| Native American | 0.11% |
| Hawaiin/Pacific Islander | 0.13% |