66944 Zip Code
| City: | Haddam |
| State: | KS |
| County: | Washington County |
| Area Codes: | 785 |
| Latitude: | 39.85 |
| Longitude: | -97.3 |
| Time Zone: | America/Chicago |
| Population in 2010: | 195 |
| School District: | North Central - Washington Schools Unified School District 108 |
| District Code: | 28 |