Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| First Christian Church | Church | 110 | Frederick | 39 26 52 N | 077 26 05 W |
| First Christian Church | Church | 10 | Harford | 39 32 21 N | 076 05 49 W |
| First Christian Church | Church | 170 | Washington | 39 39 30 N | 077 42 12 W |
| First Christian Community Baptist Church | Church | 128 | Baltimore (city) | 39 20 27 N | 076 41 21 W |
| First Christian Community Baptist Church | Church | 54 | Baltimore (city) | 39 18 09 N | 076 38 34 W |
| First Church of Christ Scientist | Church | 206 | Allegany | 39 39 02 N | 078 45 58 W |
| First Church of Christ Scientist | Church | 6 | Anne Arundel | 38 58 48 N | 076 29 20 W |
| First Church of Christ Scientist | Church | 137 | Baltimore | 39 16 04 N | 076 45 09 W |
| First Church of Christ Scientist | Church | 81 | Baltimore (city) | 39 20 06 N | 076 37 16 W |
| First Church of Christ Scientist | Church | 90 | Frederick | 39 25 00 N | 077 24 36 W |
| First Church of Christ Scientist | Church | 114 | Montgomery | 39 00 15 N | 077 02 15 W |
| First Church of Christ Scientist | Church | 34 | St. Mary's | 38 17 42 N | 076 30 02 W |
| First Church of Christ Scientist | Church | 6 | Talbot | 38 45 56 N | 076 04 30 W |
| First Church of Christ Scientist | Church | 9 | Wicomico | 38 21 14 N | 075 36 18 W |
| First Church of God | Church | 4 | Anne Arundel | 38 58 13 N | 076 29 08 W |
| First Church of God | Church | 56 | Anne Arundel | 39 04 21 N | 076 40 39 W |
| First Church of God | Church | 31 | Baltimore | 39 21 03 N | 076 27 05 W |
| First Church of God | Church | 5 | Caroline | 38 41 53 N | 075 46 38 W |
| First Church of God | Church | 240 | Carroll | 39 34 17 N | 076 59 25 W |
| First Church of God | Church | 57 | Howard | 39 16 05 N | 076 47 44 W |
| First Church of God | Church | 134 | Montgomery | 39 04 52 N | 077 07 59 W |
| First Church of God | Church | 168 | Washington | 39 38 22 N | 077 43 34 W |
| First Church of God | Church | 128 | Washington | 39 27 29 N | 077 45 02 W |
| First Church of the Brethren | Church | 129 | Baltimore (city) | 39 19 51 N | 076 41 35 W |
| First Church of the Nazarene | Church | 110 | Baltimore (city) | 39 17 38 N | 076 41 21 W |
| First Church of the Nazarene | Church | 236 | Carroll | 39 34 16 N | 076 59 46 W |
| First Church of the Nazarene | Church | 150 | Howard | 39 17 56 N | 076 48 45 W |
| First Church of the Nazarene | Church | 10 | Wicomico | 38 22 38 N | 075 35 15 W |
| First Colored Baptist Church | Church | 17 | Baltimore (city) | 39 17 49 N | 076 35 50 W |
| First Congregational Church | Church | 603 | Allegany | 39 39 02 N | 078 55 38 W |
| First Cove | Bay | 0 | Anne Arundel | 39 07 58 N | 076 27 17 W |
| First District Community Park | Park | 20 | St. Mary's | 38 07 47 N | 076 22 59 W |
| First Emmanuel Baptist Church | Church | 54 | Baltimore (city) | 39 18 55 N | 076 37 47 W |
| First English Baptist Church | Church | 608 | Allegany | 39 39 20 N | 078 55 27 W |
| First English Evangelical Lutheran Church | Church | 79 | Baltimore (city) | 39 20 07 N | 076 37 04 W |
| First Evangelical Lutheran Church | Church | 47 | Anne Arundel | 39 05 03 N | 076 42 03 W |
| First Evangelical Lutheran Church | Church | 128 | Howard | 39 16 22 N | 076 50 02 W |
| First Hose Company of Boonsboro Company 6 | Building | | Washington | 39 51 07 N | 078 05 09 W |
| First Lutheran Cemetery | Cemetery | 62 | Prince George's | 39 00 41 N | 076 47 05 W |
| First Lutheran Church | Church | 129 | Baltimore | 39 23 43 N | 076 36 01 W |
| First Lutheran Church of Bowie | Church | 59 | Prince George's | 39 00 39 N | 076 47 05 W |
| First Methodist Church | Church | 5 | Wicomico | 38 22 27 N | 075 44 34 W |
| First Mine Branch | Stream | | Baltimore | 39 36 49 N | 076 37 23 W |
| First Mount Calvary Baptist Church | Church | 59 | Baltimore (city) | 39 18 06 N | 076 38 48 W |
| First Pentecostal Church | Church | 3 | Cecil | 39 35 53 N | 075 56 33 W |
| First Pentecostal Church | Church | 35 | St. Mary's | 38 15 55 N | 076 27 36 W |
| First Pilgrim Church | Church | 13 | Talbot | 38 46 34 N | 076 03 51 W |
| First Pilgrim Holiness Church | Church | 36 | Baltimore (city) | 39 19 11 N | 076 33 47 W |
| First Pilgrim Holiness Church | Church | 6 | Dorchester | 38 33 47 N | 076 04 44 W |
| First Pilgrim Holiness Church (historical) | Church | 8 | Wicomico | 38 27 43 N | 075 45 36 W |
| First Presbyterian Church | Church | 204 | Allegany | 39 39 04 N | 078 45 56 W |
| First Presbyterian Church | Church | 32 | Baltimore (city) | 39 17 55 N | 076 37 08 W |
| First Presbyterian Church | Church | 128 | Harford | 39 32 20 N | 076 21 17 W |
| First Presbyterian Church | Church | 29 | St. Mary's | 38 18 06 N | 076 29 42 W |
| First Presbyterian Church | Church | 174 | Washington | 39 38 37 N | 077 43 28 W |
| First Presbyterian Church | Church | 2 | Worcester | 38 20 38 N | 075 04 53 W |
| First Presbyterian Church of Annapolis | Church | 7 | Anne Arundel | 38 58 35 N | 076 29 25 W |
| First Presbyterian Church of Frostburg | Church | 630 | Allegany | 39 39 24 N | 078 55 45 W |
| First Presbyterian Church of Howard County | Church | 121 | Howard | 39 14 17 N | 076 50 06 W |
| First Seventh Day Adventist Church | Church | 71 | Baltimore (city) | 39 16 53 N | 076 41 58 W |
| First Unitarian Church | Church | 27 | Baltimore (city) | 39 17 43 N | 076 36 57 W |
| First United Church | Church | 131 | Baltimore (city) | 39 17 35 N | 076 42 36 W |
| First United Evangelical and Reformed Church | Church | 7 | Baltimore (city) | 39 17 09 N | 076 35 32 W |
| First United Methodist Church | Church | 3 | Dorchester | 38 36 34 N | 075 57 03 W |
| First United Methodist Church | Church | 6 | Kent | 39 12 37 N | 076 04 05 W |
| First United Methodist Church | Church | 52 | Prince George's | 39 06 22 N | 076 50 58 W |
| First United Methodist Church | Church | 35 | Prince George's | 38 57 53 N | 076 57 06 W |
| First United Presbyterian Church | Church | 271 | Carroll | 39 33 49 N | 076 59 13 W |
| First Wesleyan Church | Church | 12 | Caroline | 38 53 01 N | 075 49 24 W |
| First Wesleyan Church | Church | 13 | Talbot | 38 46 34 N | 076 03 53 W |
| Fischer | Populated Place | 244 | Frederick | 39 27 34 N | 077 07 12 W |
| Fish Hall Farm (historical) | Locale | 22 | Kent | 39 22 03 N | 076 03 39 W |
| Fish Hatchery Spring | Spring | 249 | Frederick | 39 32 18 N | 077 27 09 W |
| Fish Island | Island | 0 | Somerset | 38 08 34 N | 075 53 04 W |
| Fisher Manor | Populated Place | 7 | Queen Anne's | 38 57 17 N | 076 11 26 W |
| Fisherman Creek | Stream | | St. Mary's | 38 11 35 N | 076 25 47 W |
| Fishers Hollow | Populated Place | 276 | Frederick | 39 30 27 N | 077 30 47 W |
| Fishers Point | Cape | 0 | St. Mary's | 38 07 39 N | 076 20 43 W |
| Fishing Battery Lighthouse | Locale | -3 | Harford | 39 29 40 N | 076 05 01 W |
| Fishing Bay | Bay | -3 | Dorchester | 38 18 11 N | 076 01 14 W |
| Fishing Bay Wildlife Management Area | Park | 0 | Dorchester | 38 20 30 N | 075 56 09 W |
| Fishing Creek | Bay | 10 | Anne Arundel | 38 54 50 N | 076 27 57 W |
| Fishing Creek | Bay | 0 | Dorchester | 38 20 54 N | 076 13 53 W |
| Fishing Creek | Bay | 5 | Dorchester | 38 25 41 N | 076 08 47 W |
| Fishing Creek | Bay | -3 | Somerset | 38 08 36 N | 075 53 35 W |
| Fishing Creek | Channel | 0 | Somerset | 38 01 18 N | 076 00 60 W |
| Fishing Creek | Gut | -3 | Somerset | 37 55 23 N | 075 53 03 W |
| Fishing Creek | Populated Place | 0 | Dorchester | 38 19 20 N | 076 13 28 W |
| Fishing Creek | Stream | | Calvert | 38 41 28 N | 076 31 58 W |
| Fishing Creek | Stream | | Calvert | 38 20 09 N | 076 24 33 W |
| Fishing Creek | Stream | | Dorchester | 38 32 37 N | 076 13 09 W |
| Fishing Creek | Stream | | Frederick | 39 30 19 N | 077 23 29 W |
| Fishing Creek | Stream | | Queen Anne's | 39 12 12 N | 076 03 31 W |
| Fishing Creek Dam | Dam | 203 | Frederick | 39 31 30 N | 077 27 41 W |
| Fishing Creek Farms | Populated Place | 5 | Anne Arundel | 38 55 31 N | 076 28 39 W |
| Fishing Creek Reservoir | Reservoir | 222 | Frederick | 39 31 32 N | 077 27 47 W |
| Fishing Ditch | Bay | -3 | Somerset | 37 56 05 N | 075 50 45 W |
| Fishing Island | Island | 1 | Somerset | 38 07 44 N | 075 48 51 W |
| Fishing Point | Cape | 0 | Baltimore (city) | 39 13 30 N | 076 33 50 W |
| Fishing Point | Cape | 0 | Dorchester | 38 14 06 N | 076 09 02 W |
| Fishing Point | Cape | 1 | Dorchester | 38 18 31 N | 076 00 57 W |
| Fishing Point | Cape | 0 | Dorchester | 38 20 53 N | 076 13 31 W |
| Fishing Point | Cape | 0 | Dorchester | 38 14 59 N | 076 02 27 W |
| Fishing Point | Cape | -3 | Somerset | 38 02 09 N | 076 00 16 W |
| Fishing Point | Cape | -3 | Somerset | 38 08 08 N | 075 48 36 W |
| Fishing Point | Cape | 0 | St. Mary's | 38 18 15 N | 076 25 20 W |
| Fishing Point | Cape | 1 | Talbot | 38 44 23 N | 076 16 07 W |
| Fishing Point Shoal | Bar | -3 | Anne Arundel | 39 13 26 N | 076 33 35 W |
| Fishing Valley Landing | Locale | 7 | Kent | 39 20 38 N | 076 08 12 W |
| Fishtown | Populated Place | 163 | Baltimore | 39 23 10 N | 076 44 09 W |