| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Halcyon Gate | city | Maryland | United States | 39.40 | -76.70 | 830 | |
| Haldane | city | Maryland | United States | 38.53 | -76.99 | 147 | |
| Halethorpe | city | Maryland | United States | 39.24 | -76.68 | 134 | |
| Haletown | city | Maryland | United States | 39.60 | -76.76 | 830 | |
| Halfway | city | Maryland | United States | 39.62 | -77.76 | 830 | |
| Halfway Manor | city | Maryland | United States | 39.62 | -77.76 | 830 | |
| Halifax Heights | city | Maryland | United States | 39.45 | -76.54 | 406 | |
| Hall | city | Maryland | United States | 38.90 | -76.74 | 150 | |
| Hall Shop Estates | city | Maryland | United States | 39.17 | -76.95 | 830 | |
| Hall Spring | city | Maryland | United States | 39.34 | -76.58 | 98 | |
| Hallet Heights | city | Maryland | United States | 38.18 | -75.38 | 19 | |
| Halley Estates | city | Maryland | United States | 38.58 | -76.96 | 200 | |
| Hallfield Manor | city | Maryland | United States | 39.39 | -76.47 | 98 | |
| Hallmark | city | Maryland | United States | 39.17 | -76.90 | 400 | |
| Hallmark Estates | city | Maryland | United States | 38.62 | -76.64 | 108 | |
| Hallmark Woods | city | Maryland | United States | 38.99 | -76.65 | 82 | |
| Hallowell | city | Maryland | United States | 39.14 | -77.06 | 830 | |
| Halls Hacienda | city | Maryland | United States | 38.46 | -76.52 | 52 | |
| Halls Hills | city | Maryland | United States | 38.71 | -76.66 | 49 | |
| Halls Trailer Villa | city | Maryland | United States | 39.65 | -76.24 | 400 | |
| Halpine Village | city | Maryland | United States | 39.06 | -77.12 | 347 |