| Name | Lyon County |
| State | Minnesota |
| FIPS Code | 27083 |
| County Seat | Marshall |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 25,714 |
| Population Growth Rate(2000-2022) | -2.27% |
| Majority Ethnicity | White 91.17% |
| Public School Majority Ethnicity | White 68% |
| Partisan Voting Index | Republican:+15 |
| Unemployment Rate (February 2025) | 2.4% |
| Area Code(s) | 507 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 91.17% |
| African American | 3.34% |
| Hispanic | 0.18% |
| Asian | 5.28% |
| Native American | 0.01% |
| Hawaiin/Pacific Islander | 0.01% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 67.88% |
| African American | 4.51% |
| Hispanic | 14.37% |
| Asian | 8.35% |
| Native American | 0.35% |
| Hawaiin/Pacific Islander | 0.06% |