Cities and Towns in Saint Mary’s County, Maryland
Founded in 1637, St. Mary’s County is one of 23 counties in the state of Maryland. Historically, St. Mary’s County was formed from unorganized territory. Was named Potomac County between 1654 and 1658. The city of Leonardtown is the county seat. With FIPS code of 37, St. Mary’s County has a population of 114,468 and area of 611 square miles (1,582 km²).
List of all cities in Saint Mary’s County, MD alphabetically
| City/Town | Postal Code | Area Code |
| Abell, MD | 20606 | 301/240/227 |
| Avenue, MD | 20609 | 301/240/227 |
| Beachville, MD | 20684 | 301/240/227 |
| Bushwood, MD | 20618 | 301/240/227 |
| California, MD | 20619 | 301/240/227 |
| Callaway, MD | 20620 | 301/240/227 |
| Chaptico, MD | 20621 | 301/240/227 |
| Charlotte Hall, MD | 20622 | 301/240/227 |
| Clements, MD | 20624 | 301/240/227 |
| Coltons Point, MD | 20626 | 301/240/227 |
| Compton, MD | 20627 | 301/240/227 |
| Dameron, MD | 20628 | 301/240/227 |
| Drayden, MD | 20630 | 301/240/227 |
| Great Mills, MD | 20634 | 301/240/227 |
| Helen, MD | 20635 | 301/240/227 |
| Hollywood, MD | 20636 | 301/240/227 |
| Leonardtown, MD | 20650 | 301/240/227 |
| LEX Park, MD | 20653 | 301/240/227 |
| Lexington Park, MD | 20653 | 301/240/227 |
| Loveville, MD | 20656 | 301/240/227 |
| Maddox, MD | 20621 | 301/240/227 |
| Mechanicsville, MD | 20659 | 301/240/227 |
| Mechanicsvlle, MD | 20659 | 301/240/227 |
| Morganza, MD | 20660 | 301/240/227 |
| Park Hall, MD | 20667 | 301/240/227 |
| Patuxent River, MD | 20670 | 301/240/227 |
| Patuxent River Naval Air Station, MD | 20670 | 301/240/227 |
| Piney Point, MD | 20674 | 301/240/227 |
| Ridge, MD | 20680 | 301/240/227 |
| Saint Inigoes, MD | 20684 | 301/240/227 |
| Saint Marys, MD | 20686 | 301/240/227 |
| Scotland, MD | 20687 | 301/240/227 |
| Tall Timbers, MD | 20690 | 301/240/227 |
| Valley Lee, MD | 20692 | 301/240/227 |
