8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 66048 | Leavenworth | 35,970 |
| 66086 | Tonganoxie | 10,774 |
| 66043 | Lansing | 10,684 |
| 66012 | Bonner Springs | 10,295 |
| 66007 | Basehor | 9,601 |
| 66027 | Fort Leavenworth | 6,990 |
| 66052 | Linwood | 2,151 |
| 66020 | Easton | 1,848 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Leavenworth County, Kansas (US Census).