| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Loarville | city | Maryland | United States | 39.62 | -78.89 | 2509 | |
| Loch Haven | city | Maryland | United States | 39.32 | -77.27 | 830 | |
| Loch Haven Beach | city | Maryland | United States | 38.92 | -76.52 | 3 | |
| Loch Hill | city | Maryland | United States | 39.38 | -76.58 | 347 | |
| Loch Leven | city | Maryland | United States | 39.57 | -76.17 | 321 | |
| Loch Lynn Heights | city | Maryland | United States | 39.39 | -79.37 | 2509 | |
| Loch Raven | city | Maryland | United States | 39.42 | -76.54 | 396 | |
| Loch Raven Heights | city | Maryland | United States | 39.39 | -76.56 | 351 | |
| Loch Raven Village | city | Maryland | United States | 39.39 | -76.57 | 396 | |
| Lochearn | city | Maryland | United States | 39.34 | -76.72 | 396 | |
| Locke Hill Estates | city | Maryland | United States | 38.45 | -76.75 | 124 | |
| Locksley | city | Maryland | United States | 39.53 | -76.54 | 830 | |
| Locksley Manor | city | Maryland | United States | 39.55 | -76.19 | 246 | |
| Lockwood Heights | city | Maryland | United States | 39.48 | -77.56 | 830 | |
| Locust Grove | city | Maryland | United States | 39.45 | -77.66 | 830 | |
| Locust Grove | city | Maryland | United States | 39.65 | -79.46 | 2070 | |
| Locust Grove | city | Maryland | United States | 39.68 | -78.79 | 830 | |
| Locust Grove | city | Maryland | United States | 39.33 | -75.95 | 49 | |
| Locust Grove | city | Maryland | United States | 38.67 | -76.09 | 3 | |
| Locust Grove | city | Maryland | United States | 39.57 | -77.39 | 347 | |
| Locust Grove Beach | city | Maryland | United States | 38.65 | -76.53 | 0 | |
| Locust Hill | city | Maryland | United States | 39.50 | -76.52 | 830 | |
| Locust Hill Estates | city | Maryland | United States | 39.01 | -77.10 | 252 | |
| Locust Hill Estates | city | Maryland | United States | 39.57 | -76.22 | 380 | |
| Locust Knoll | city | Maryland | United States | 39.52 | -76.36 | 229 | |
| Locust Manor | city | Maryland | United States | 39.20 | -76.79 | 314 | |
| Locust Neck Heights | city | Maryland | United States | 39.63 | -77.05 | 830 | |
| Locust Park | city | Maryland | United States | 39.21 | -76.82 | 351 | |
| Locust Ridge | city | Maryland | United States | 39.27 | -76.92 | 396 | |
| Locust Valley | city | Maryland | United States | 39.42 | -77.63 | 830 | |
| Lodge Forest | city | Maryland | United States | 39.22 | -76.45 | 0 | |
| Lodgecliff | city | Maryland | United States | 38.59 | -76.10 | 3 | |
| Lofty Heights | city | Maryland | United States | 38.78 | -76.57 | 85 | |
| Log Town (historical) | city | Maryland | United States | 39.14 | -77.19 | 830 | |
| Lombard | city | Maryland | United States | 39.72 | -75.95 | 400 | |
| Lombard Acres | city | Maryland | United States | 39.72 | -75.94 | 400 | |
| Lombardee Beach | city | Maryland | United States | 39.16 | -76.54 | 3 | |
| Lonaconing | city | Maryland | United States | 39.57 | -78.98 | 1669 | |
| London Bridge Estates | city | Maryland | United States | 39.46 | -76.96 | 830 | |
| Londonderry | city | Maryland | United States | 38.77 | -76.09 | 3 | |
| Londonderry | city | Maryland | United States | 39.14 | -77.21 | 830 | |
| Londontown Terrace | city | Maryland | United States | 38.94 | -76.54 | 3 | |
| Londontowne | city | Maryland | United States | 38.93 | -76.55 | 3 | |
| Londontowne | city | Maryland | United States | 39.61 | -77.68 | 830 | |
| Lone Holly | city | Maryland | United States | 38.29 | -76.92 | 0 | |
| Lone Oak | city | Maryland | United States | 39.02 | -77.12 | 344 | |
| Long Bar Harbor | city | Maryland | United States | 39.45 | -76.25 | 0 | |
| Long Beach | city | Maryland | United States | 38.46 | -76.47 | 39 | |
| Long Beach Estates | city | Maryland | United States | 39.31 | -76.40 | 0 | |
| Long Corner | city | Maryland | United States | 39.33 | -77.16 | 830 | |
| Long Cove Estates | city | Maryland | United States | 38.45 | -76.58 | 98 | |
| Long Green | city | Maryland | United States | 39.47 | -76.52 | 830 | |
| Long Green Manor | city | Maryland | United States | 39.50 | -76.49 | 344 | |
| Long Green Woods | city | Maryland | United States | 39.49 | -76.46 | 830 | |
| Long Hill | city | Maryland | United States | 39.13 | -76.57 | 82 | |
| Long Meadow | city | Maryland | United States | 39.69 | -77.71 | 830 | |
| Long Meadow West | city | Maryland | United States | 39.40 | -76.72 | 830 | |
| Long Meadows | city | Maryland | United States | 39.40 | -76.94 | 830 | |
| Long Meadows Estates | city | Maryland | United States | 39.39 | -76.71 | 830 | |
| Long Point | city | Maryland | United States | 39.10 | -76.45 | 3 | |
| Long Point on the Magothy | city | Maryland | United States | 39.10 | -76.46 | 3 | |
| Long Reach | city | Maryland | United States | 39.21 | -76.82 | 830 | |
| Longdraft | city | Maryland | United States | 39.14 | -77.24 | 400 | |
| Longfellow | city | Maryland | United States | 39.23 | -76.88 | 387 | |
| Longfield | city | Maryland | United States | 38.44 | -76.02 | 3 | |
| Longmeadow | city | Maryland | United States | 39.56 | -76.35 | 341 | |
| Longmeadow | city | Maryland | United States | 39.07 | -76.53 | 32 | |
| Longmeadow North | city | Maryland | United States | 39.07 | -76.53 | 3 | |
| Longridge | city | Maryland | United States | 38.27 | -75.51 | 45 | |
| Longridge | city | Maryland | United States | 38.39 | -75.28 | 32 | |
| Longs (historical) | city | Maryland | United States | 39.68 | -77.33 | 830 | |
| Longs Mountain View | city | Maryland | United States | 39.65 | -77.19 | 830 | |
| Longview | city | Maryland | United States | 39.06 | -76.50 | 39 | |
| Longview | city | Maryland | United States | 39.41 | -77.30 | 830 | |
| Longview Beach | city | Maryland | United States | 38.29 | -76.81 | 6 | |
| Longview Estates | city | Maryland | United States | 39.57 | -77.64 | 830 | |
| Longview Heights | city | Maryland | United States | 39.42 | -76.92 | 830 | |
| Longview South | city | Maryland | United States | 39.24 | -77.19 | 830 | |
| Longville | city | Maryland | United States | 39.69 | -77.19 | 830 | |
| Longwood | city | Maryland | United States | 39.01 | -77.14 | 275 | |
| Longwoods | city | Maryland | United States | 38.86 | -76.08 | 19 | |
| Lor-J Estates | city | Maryland | United States | 38.90 | -75.86 | 39 | |
| Lord Calvert Estates | city | Maryland | United States | 38.69 | -76.67 | 98 | |
| Lord Calvert Hills | city | Maryland | United States | 38.67 | -76.62 | 98 | |
| Lord Calvert Mobile Home Park | city | Maryland | United States | 38.25 | -76.49 | 98 | |
| Lord Cecil Woods | city | Maryland | United States | 38.59 | -76.60 | 49 | |
| Loretta Heights | city | Maryland | United States | 38.98 | -76.54 | 49 | |
| Loretto | city | Maryland | United States | 38.26 | -75.68 | 19 | |
| Lost Eden | city | Maryland | United States | 39.53 | -77.50 | 1699 | |
| Lost Valley | city | Maryland | United States | 39.72 | -77.39 | 830 | |
| Lothair Station | city | Maryland | United States | 38.44 | -76.97 | 98 | |
| Lothian | city | Maryland | United States | 38.83 | -76.61 | 101 | |
| Lothian Estates | city | Maryland | United States | 38.82 | -76.65 | 147 | |
| Lothian Woods | city | Maryland | United States | 38.82 | -76.65 | 147 | |
| Lou Mar Estates | city | Maryland | United States | 39.47 | -76.29 | 108 | |
| Louis Heights | city | Maryland | United States | 38.43 | -75.17 | 6 | |
| Louisville | city | Maryland | United States | 39.45 | -76.92 | 830 | |
| Lourds Manor | city | Maryland | United States | 39.11 | -76.54 | 42 | |
| Love Point | city | Maryland | United States | 39.03 | -76.31 | 3 | |
| Lovejoy Estates | city | Maryland | United States | 39.52 | -77.20 | 830 | |
| Lovers Lane | city | Maryland | United States | 38.58 | -76.09 | 3 | |
| Loves | city | Maryland | United States | 38.52 | -76.73 | 98 | |
| Loves Folly | city | Maryland | United States | 38.75 | -76.16 | 3 | |
| Loveton Farms | city | Maryland | United States | 39.52 | -76.64 | 830 | |
| Loveville | city | Maryland | United States | 38.36 | -76.68 | 108 | |
| Loveville Acres | city | Maryland | United States | 38.39 | -76.66 | 98 | |
| Lowell Ridge | city | Maryland | United States | 39.40 | -76.54 | 380 | |
| Lower Brambley (historical) | city | Maryland | United States | 38.30 | -76.81 | 19 | |
| Lower Marlboro | city | Maryland | United States | 38.66 | -76.68 | 36 | |
| Lower Marlboro Meadow | city | Maryland | United States | 38.66 | -76.62 | 144 | |
| Lower Marlboro Towne | city | Maryland | United States | 38.66 | -76.68 | 45 | |
| Lowery Oaks | city | Maryland | United States | 38.58 | -76.65 | 39 | |
| Lowndes | city | Maryland | United States | 39.55 | -78.86 | 964 | |
| Lowrys Resurvey | city | Maryland | United States | 38.60 | -76.63 | 88 | |
| Loys | city | Maryland | United States | 39.61 | -77.35 | 393 |