| Post Office Name | US Post Office |
| Address | 1050 Saybrook Rd |
| City | Haddam |
| State | Connecticut |
| Phone Number | (800) 275-8777 |
| Latitude | 41.4527 |
| Longitude | -72.5083 |
6438 US Post Office in Haddam, Connecticut is located at 1050 Saybrook Rd. The Haddam Post Office Number is (800) 275-8777
