Founded in 1907, Okmulgee County is one of 77 counties in the state of Oklahoma. Historically, Okmulgee County was formed from Creek Nation land. The city of Okmulgee is the county seat. With FIPS code of 111, Okmulgee County has a population of 36,843 and area of 697 square miles (1,805 km2).
List of all cities in Okmulgee County, OK alphabetically
| City/Town | Postal Code | Area Code |
| Beggs, OK | 74421 | 918 |
| Coalton, OK | 74437 | 918 |
| Dewar, OK | 74431 | 918 |
| Grayson, OK | 74437 | 918 |
| Henryetta, OK | 74437 | 918 |
| Hoffman, OK | 74437 | 918 |
| Morris, OK | 74445 | 918 |
| Nuyaka, OK | 74447 | 918 |
| Okmulgee, OK | 74447 | 918 |
| Preston, OK | 74456 | 918 |
| Salem, OK | 74437 | 918 |
| Schulter, OK | 74460 | 918 |
| Spelter City, OK | 74437 | 918 |
| Twin Hills, OK | 74447 | 918 |