| Name | Riley County |
| State | Kansas |
| FIPS Code | 20161 |
| County Seat | Manhattan |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 71,927 |
| Population Growth Rate(2000-2022) | 1.19% |
| Majority Ethnicity | White 86.79% |
| Public School Majority Ethnicity | White 64% |
| Partisan Voting Index | Democratic:+1 |
| Unemployment Rate (December 2024) | 3.4% |
| Area Code(s) | 785 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 86.79% |
| African American | 6.95% |
| Hispanic | 0.86% |
| Asian | 4.84% |
| Native American | 0.28% |
| Hawaiin/Pacific Islander | 0.28% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 64.23% |
| African American | 7.8% |
| Hispanic | 14.34% |
| Asian | 3.61% |
| Native American | 0.39% |
| Hawaiin/Pacific Islander | 0.5% |