Post Offices List in Okmulgee County, Oklahoma:
| Beggs Post Office | 106 N Choctaw St, Beggs, OK 74421 |
| Dewar Post Office | 104 N Broadway, Dewar, OK 74431 |
| Henryetta Post Office | 201 N 5th St, Henryetta, OK 74437 |
| Morris Post Office | 321 S 2nd St, Morris, OK 74445 |
| Okmulgee Post Office | 111 W 4th St, Okmulgee, OK 74447 |
| Preston Post Office | 10040 Polk Ave, Preston, OK 74456 |
| Schulter Post Office | 13445 Ginger St, Schulter, OK 74460 |