| Maryland State Locator Citys, Towns, Villages, and Other beginning with the letter U |
| CITY/TOWN/VILLAGE/ETC. | LOCATED IN THIS TOWN | COUNTY |
| Unicorn | #7 Township | Queen Annes |
| Union Bridge | #12 Township | Carroll |
| Union Mills | #3 Township | Carroll |
| Uniontown | #2 Township | Carroll |
| Unionville | #19 Township | Frederick |
| Unionville | #1 Township | Worcester |
| Unity | #1 Township | Montgomery |
| University Park | #21 Township | Prince Georges |
| Upper Crossroads | #4 Township | Harford |
| Upper Fairmount | #6 Township | Somerset |
| Upper Falls | #11 Township | Baltimore |
| Upper Hill | #6 Township | Somerset |
| Upper Marlboro | #3 Township | Prince Georges |
| Urbana | #7 Township | Frederick |
| Utica | #20 Township | Frederick |