| Name | Leavenworth County |
| State | Kansas |
| FIPS Code | 20103 |
| County Seat | Leavenworth |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 83,735 |
| Population Growth Rate(2020-2024) | 2.2% |
| Majority Ethnicity | White 83% |
| Public School Majority Ethnicity | White 69% |
| Partisan Voting Index | Republican:+11 |
| Unemployment Rate (May 2026) | 5.0% |
| Sales Tax Rate (2025) | 7.5% |
| Area Code(s) | 913 / 785 / 816 / 975 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 83% |
| African American | 7.62% |
| Hispanic | 7.54% |
| Asian | 1.34% |
| Native American | 0.46% |
| Hawaiin/Pacific Islander | 0.05% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 69.16% |
| African American | 7.6% |
| Hispanic | 12.47% |
| Asian | 1.36% |
| Native American | 0.45% |
| Hawaiin/Pacific Islander | 0.27% |