| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sycamore Acres | city | Maryland | United States | 39.12 | -77.09 | 403 | |
| Sycamore Creek | city | Maryland | United States | 39.09 | -77.10 | 396 | |
| Sycamore Farms | city | Maryland | United States | 39.55 | -75.81 | 49 | |
| Sycamore Heights | city | Maryland | United States | 39.64 | -77.65 | 830 | |
| Sycamore Ridge | city | Maryland | United States | 38.70 | -76.59 | 98 | |
| Sycamore Springs | city | Maryland | United States | 39.28 | -76.96 | 830 | |
| Sykesville | city | Maryland | United States | 39.37 | -76.97 | 830 | |
| Sylmac | city | Maryland | United States | 38.99 | -76.59 | 98 | |
| Sylmar | city | Maryland | United States | 39.72 | -76.03 | 830 | |
| Sylvan Grove | city | Maryland | United States | 39.66 | -77.80 | 830 | |
| Sylvan Hill | city | Maryland | United States | 39.29 | -76.79 | 216 | |
| Sylvan Park | city | Maryland | United States | 39.62 | -76.92 | 938 | |
| Sylvan Shores | city | Maryland | United States | 38.95 | -76.58 | 6 | |
| Sylvan View | city | Maryland | United States | 39.09 | -76.46 | 0 | |
| Sylvanhurst | city | Maryland | United States | 38.62 | -76.77 | 196 | |
| Sylvania Mobile Home Park | city | Maryland | United States | 39.41 | -76.42 | 137 |