| Name | Buchanan County |
| State | Missouri |
| FIPS Code | 29021 |
| County Seat | St. Joseph |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 89,162 |
| Population Growth Rate(2000-2022) | -4.94% |
| Majority Ethnicity | White 90.95% |
| Public School Majority Ethnicity | White 71% |
| Partisan Voting Index | Republican:+11 |
| Unemployment Rate (December 2024) | 3.2% |
| Area Code(s) | 816 / 975 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 90.95% |
| African American | 6.41% |
| Hispanic | 0.46% |
| Asian | 1.46% |
| Native American | 0.36% |
| Hawaiin/Pacific Islander | 0.36% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 70.6% |
| African American | 5.44% |
| Hispanic | 10.26% |
| Asian | 1.5% |
| Native American | 0.28% |
| Hawaiin/Pacific Islander | 2.12% |