Post Offices List in Putnam County, Illinois:
| Granville Post Office | 107 S Mccoy St, Granville, IL 61326 |
| Hennepin Post Office | 316 E High St, Hennepin, IL 61327 |
| Magnolia Post Office | 106 N Chicago St, Magnolia, IL 61336 |
| Mark Post Office | 106 W Hennepin St, Mark, IL 61340 |
| MC Nabb Post Office | 318 W Main St, Mc Nabb, IL 61335 |
| Putnam Post Office | 107 Centers St, Putnam, IL 61560 |
| Standard Post Office | 106 S 2nd St, Standard, IL 61363 |