| Name | Olmsted County |
| State | Minnesota |
| FIPS Code | 27109 |
| County Seat | Rochester |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 165,119 |
| Population Growth Rate(2020-2024) | 1.37% |
| Majority Ethnicity | White 80.06% |
| Public School Majority Ethnicity | White 61% |
| Partisan Voting Index | Democratic:+4 |
| Unemployment Rate (May 2026) | 4.1% |
| Sales Tax Rate (2025) | 8.13% |
| Area Code(s) | 507 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 80.06% |
| African American | 7.36% |
| Hispanic | 5.88% |
| Asian | 6.43% |
| Native American | 0.2% |
| Hawaiin/Pacific Islander | 0.07% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 61.45% |
| African American | 13.77% |
| Hispanic | 10.38% |
| Asian | 6.8% |
| Native American | 0.29% |
| Hawaiin/Pacific Islander | 0.06% |