Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Howard County Library - Savage Branch | Building | 83 | Howard | 39 07 57 N | 076 50 09 W |
| Howard County Medical Center | Hospital | 120 | Howard | 39 16 30 N | 076 49 24 W |
| Howard County Police Department - Northern District | Building | 129 | Howard | 39 16 32 N | 076 48 26 W |
| Howard County Police Department - Southern District | Building | 136 | Howard | 39 08 49 N | 076 54 04 W |
| Howard County School of Technology | School | 155 | Howard | 39 14 07 N | 076 53 34 W |
| Howard County Service Center | Locale | 179 | Howard | 39 19 05 N | 077 00 23 W |
| Howard Creek | Stream | | Anne Arundel | 39 00 13 N | 076 31 25 W |
| Howard Heights | Populated Place | 129 | Howard | 39 17 02 N | 076 49 49 W |
| Howard High School | School | 161 | Howard | 39 13 35 N | 076 48 46 W |
| Howard Hills | Populated Place | 81 | Howard | 39 08 27 N | 076 49 08 W |
| Howard Manor | Populated Place | 16 | Anne Arundel | 39 08 52 N | 076 34 34 W |
| Howard Park | Populated Place | 128 | Baltimore (city) | 39 19 52 N | 076 41 41 W |
| Howard Park (subdivision) | Populated Place | 120 | Harford | 39 32 00 N | 076 21 19 W |
| Howard Park Methodist Church | Church | 125 | Baltimore (city) | 39 19 52 N | 076 42 03 W |
| Howard Park Public School (historical) | School | 123 | Baltimore (city) | 39 19 53 N | 076 41 52 W |
| Howard School | School | 164 | Washington | 39 37 40 N | 077 43 40 W |
| Howard Street Public School (historical) | School | 10 | Cecil | 39 36 31 N | 075 49 29 W |
| Howard Street Tunnel | Tunnel | 30 | Baltimore (city) | 39 17 47 N | 076 37 12 W |
| Howard Wharf (historical) | Locale | 7 | St. Mary's | 38 16 14 N | 076 42 33 W |
| Howards Branch | Stream | | Anne Arundel | 39 01 20 N | 076 32 37 W |
| Howards Retreat | Populated Place | 165 | Frederick | 39 27 05 N | 077 27 39 W |
| Howardsville | Populated Place | 141 | Baltimore | 39 21 41 N | 076 43 25 W |
| Howell Point | Cape | 2 | Kent | 39 22 16 N | 076 06 41 W |
| Howell Point | Cape | 2 | Talbot | 38 36 43 N | 076 06 39 W |
| Howes Meadows | Populated Place | 32 | Calvert | 38 42 09 N | 076 40 51 W |
| Howleys Manor | Locale | 1 | St. Mary's | 38 07 41 N | 076 20 40 W |
| Hoye-Crest | Summit | 1021 | Garrett | 39 14 14 N | 079 29 07 W |
| Hoyes | Populated Place | 787 | Garrett | 39 35 25 N | 079 22 10 W |
| Hoyes Cemetery | Cemetery | 785 | Garrett | 39 35 26 N | 079 22 05 W |
| Hoyes Run | Populated Place | 624 | Garrett | 39 31 41 N | 079 24 38 W |
| Hoyes Run | Stream | | Garrett | 39 31 55 N | 079 24 12 W |
| Hoyes Run School (historical) | School | 628 | Garrett | 39 31 41 N | 079 24 36 W |
| Hoyes United Methodist Church | Church | 786 | Garrett | 39 35 26 N | 079 22 06 W |
| Hubbard | Populated Place | 13 | Dorchester | 38 36 24 N | 075 54 12 W |
| Hubbard Hall | Building | 2 | Anne Arundel | 38 59 11 N | 076 29 36 W |
| Hubbards Cross Roads | Locale | 18 | Caroline | 38 47 50 N | 075 47 44 W |
| Huber Memorial United Church of Christ | Church | 57 | Baltimore (city) | 39 19 27 N | 076 35 38 W |
| Huckleberry | Populated Place | 32 | Charles | 38 24 56 N | 076 59 11 W |
| Huckleberry Bottom | Populated Place | 158 | Carroll | 39 39 27 N | 077 05 20 W |
| Huckleberry Branch | Stream | | Charles | 38 24 51 N | 076 58 41 W |
| Huckleberry Point | Cape | -3 | Cecil | 39 27 22 N | 075 57 00 W |
| Huckleberry Woods | Populated Place | 42 | Anne Arundel | 38 50 07 N | 076 35 49 W |
| Hudson | Populated Place | 1 | Dorchester | 38 35 31 N | 076 15 16 W |
| Hudson Branch | Stream | | Worcester | 38 18 55 N | 075 12 18 W |
| Hudson Corner | Populated Place | 1 | Somerset | 38 03 11 N | 075 42 31 W |
| Hudson Creek | Bay | -3 | Dorchester | 38 26 00 N | 076 07 59 W |
| Hudson Creek | Bay | -3 | Dorchester | 38 34 18 N | 076 14 46 W |
| Hudson Creek | Populated Place | 1 | Dorchester | 38 35 47 N | 076 14 08 W |
| Hudson Heights | Populated Place | 19 | Baltimore (city) | 39 17 04 N | 076 31 59 W |
| Hudson Heights | Populated Place | 11 | Wicomico | 38 23 30 N | 075 34 12 W |
| Hudson Landing | Populated Place | 0 | Worcester | 38 05 00 N | 075 21 04 W |
| Hudson School | School | 1 | Dorchester | 38 35 50 N | 076 15 20 W |
| Hudsons Point | Cape | -4 | Dorchester | 38 33 28 N | 076 12 39 W |
| Huggins Point | Cape | 2 | St. Mary's | 38 13 59 N | 076 41 10 W |
| Hugh Thomas Wildlife Management Area | Park | 161 | Howard | 39 21 34 N | 076 58 34 W |
| Hughes Ford | Crossing | 69 | Frederick | 39 24 43 N | 077 21 49 W |
| Hughes Memorial Stadium | Park | 66 | Baltimore (city) | 39 20 37 N | 076 34 58 W |
| Hughes United Methodist Church | Church | 117 | Montgomery | 39 01 50 N | 077 02 54 W |
| Hughesville | Populated Place | 55 | Charles | 38 31 57 N | 076 47 02 W |
| Hughesville Company 2 Fire Station | Building | 55 | Charles | 38 31 59 N | 076 46 53 W |
| Hughesville High School | School | 62 | Charles | 38 31 43 N | 076 46 47 W |
| Hughesville Industrial Park | Locale | 55 | Charles | 38 32 00 N | 076 46 24 W |
| Hughesville Manor | Populated Place | 53 | Charles | 38 31 22 N | 076 46 48 W |
| Hughesville Pond | Reservoir | 55 | Charles | 38 32 56 N | 076 48 09 W |
| Hughesville Pond Recreation Area | Park | 55 | Charles | 38 32 54 N | 076 48 14 W |
| Hughesville Post Office | Post Office | 55 | Charles | 38 32 09 N | 076 46 15 W |
| Hughesville Volunteer Fire Department and Rescue Squad Station 2 | Building | | Charles | 38 53 31 N | 077 18 13 W |
| Hughletts Landing | Locale | 1 | Talbot | 38 36 38 N | 075 59 16 W |
| Hughs Creek | Stream | | Wicomico | 38 14 47 N | 075 52 19 W |
| Hughs Dam Creek | Stream | | Dorchester | 38 28 27 N | 076 04 47 W |
| Humbert School (historical) | School | 239 | Carroll | 39 42 37 N | 077 01 44 W |
| Humbert Schoolhouse Estates | Populated Place | 237 | Carroll | 39 42 40 N | 077 01 44 W |
| Humphrey Creek | Stream | | Baltimore | 39 13 39 N | 076 29 28 W |
| Hundley Pond | Reservoir | 38 | Anne Arundel | 38 54 35 N | 076 37 36 W |
| Hungerford Creek | Stream | | Calvert | 38 20 57 N | 076 28 14 W |
| Hungerford Manor | Populated Place | 165 | Frederick | 39 22 02 N | 077 14 19 W |
| Hungerford Park Elementary School (historical) | School | 123 | Montgomery | 39 04 13 N | 077 08 40 W |
| Hungerford Towne | Populated Place | 125 | Montgomery | 39 04 28 N | 077 08 52 W |
| Hungry Hollow | Valley | | Garrett | 39 28 19 N | 079 11 50 W |
| Hunt Chapel | Populated Place | 31 | Anne Arundel | 38 50 51 N | 076 37 39 W |
| Hunt Club Acres | Populated Place | 113 | Frederick | 39 33 40 N | 077 21 55 W |
| Hunt Club Estates | Populated Place | 59 | Charles | 38 39 02 N | 076 56 02 W |
| Hunt Club Estates | Populated Place | 75 | Howard | 39 12 28 N | 076 44 34 W |
| Hunt Country Estates | Populated Place | 124 | Howard | 39 13 03 N | 076 47 27 W |
| Hunt Crest | Populated Place | 228 | Harford | 39 36 39 N | 076 30 43 W |
| Hunt Cup Hill | Populated Place | 193 | Baltimore | 39 28 42 N | 076 43 01 W |
| Hunt Meadows (subdivision) | Populated Place | 10 | Anne Arundel | 38 56 53 N | 076 30 19 W |
| Hunt Ridge | Populated Place | 144 | Baltimore | 39 26 05 N | 076 38 15 W |
| Hunt Ridge | Populated Place | 247 | Carroll | 39 37 54 N | 076 51 53 W |
| Hunt Valley | Populated Place | 91 | Baltimore | 39 29 59 N | 076 38 28 W |
| Hunt Valley Estates | Populated Place | 43 | Anne Arundel | 38 51 12 N | 076 37 34 W |
| Hunt Valley Estates | Populated Place | 44 | Calvert | 38 35 29 N | 076 32 33 W |
| Hunt Valley Inn Golf Course | Locale | 97 | Baltimore | 39 30 33 N | 076 36 36 W |
| Hunt Valley Mall Shopping Center | Locale | 109 | Baltimore | 39 29 54 N | 076 39 20 W |
| Hunt Valley Trade Center Shopping Center | Locale | 84 | Baltimore | 39 29 35 N | 076 38 48 W |
| Huntcrest Estates | Populated Place | 125 | Baltimore | 39 24 30 N | 076 34 24 W |
| Hunter Green | Populated Place | 218 | Baltimore | 39 35 49 N | 076 45 54 W |
| Hunter Gut | Gut | 1 | Somerset | 37 57 36 N | 076 01 47 W |
| Hunter Hill | Populated Place | 172 | Washington | 39 40 52 N | 077 41 07 W |
| Hunter Hollow | Valley | | Anne Arundel | 38 52 19 N | 076 34 22 W |
| Hunter Professional Center | Locale | 276 | Carroll | 39 32 57 N | 076 59 31 W |
| Hunters Farms | Populated Place | 48 | Charles | 38 33 40 N | 076 50 14 W |
| Hunters Glen | Populated Place | 213 | Baltimore | 39 27 38 N | 076 47 14 W |
| Hunters Glen South | Populated Place | 189 | Baltimore | 39 27 15 N | 076 48 04 W |
| Hunters Harbor | Bay | -7 | Anne Arundel | 39 05 42 N | 076 27 05 W |
| Hunters Harbor | Populated Place | 5 | Anne Arundel | 39 05 49 N | 076 27 24 W |
| Hunters Hill | Populated Place | 116 | Baltimore | 39 26 01 N | 076 36 25 W |
| Hunters Mill | Populated Place | 129 | Baltimore | 39 37 20 N | 076 37 03 W |
| Hunters Mill Branch | Stream | | Prince George's | 38 45 40 N | 077 00 03 W |
| Hunters Mill Recreation Area | Park | 43 | Prince George's | 38 45 46 N | 076 58 39 W |