| Country | United States (US) |
| UN/LOCODE | XSM |
| Name | Saint Marys City |
| Name Without Diacritics | Saint Marys City |
| Region | MD |
| Function Code | ---4---- |
| Function | Airport |
| Status Code | AI (Code Adopted By International Organization) |
| Date | 1101 |
| Location (UN Format) | 3811N 07626W |