Founded in 1811, Marion County is one of 82 counties in the state of Mississippi. Historically, Marion County was formed from Amite, Franklin and Wayne Counties. The city of Columbia is the county seat. With FIPS code of 91, Marion County has a population of 24,378 and area of 542 square miles (1,404 km2).
List of all cities in Marion County, MS alphabetically
| City/Town | Postal Code | Area Code |
| Cheraw, MS | 39483 | 601/769 |
| Columbia, MS | 39429 | 601/769 |
| Darbun, MS | 39643 | 601/769 |
| Foxworth, MS | 39483 | 601/769 |
| Jamestown, MS | 39483 | 601/769 |
| Kokomo, MS | 39643 | 601/769 |
| Morgantown, MS | 39483 | 601/769 |
| Pickwick, MS | 39483 | 601/769 |
| Pittman, MS | 39483 | 601/769 |
| Sandy Hook, MS | 39478 | 601/769 |
| Whitebluff, MS | 39483 | 601/769 |