Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Chaney Station | Populated Place | 41 | Calvert | 38 45 15 N | 076 38 23 W |
| Chaneyville | Populated Place | 34 | Calvert | 38 41 30 N | 076 38 24 W |
| Chaneyville Farm Estates | Populated Place | 48 | Calvert | 38 41 25 N | 076 39 59 W |
| Change Point | Cape | -3 | Talbot | 38 43 02 N | 076 17 40 W |
| Channel Industrial Park | Locale | 12 | Harford | 39 28 38 N | 076 11 38 W |
| Channel Point | Cape | 10 | Somerset | 38 00 36 N | 076 02 55 W |
| Channel Point Gut | Gut | 0 | Somerset | 38 00 28 N | 076 02 40 W |
| Chantilly Manor | Populated Place | 115 | Cecil | 39 39 33 N | 075 59 28 W |
| Chantilly Manor Country Club | Locale | 101 | Cecil | 39 39 45 N | 075 59 23 W |
| Chapel | Locale | 92 | Harford | 39 33 18 N | 076 10 03 W |
| Chapel Branch | Stream | | Caroline | 38 54 22 N | 075 50 05 W |
| Chapel Branch Ditch | Canal | 17 | Queen Anne's | 39 11 16 N | 075 51 02 W |
| Chapel Bridge | Bridge | 12 | Caroline | 38 54 54 N | 075 47 34 W |
| Chapel Cemetery | Cemetery | 177 | Frederick | 39 29 11 N | 077 16 47 W |
| Chapel Cemetery | Cemetery | 18 | Talbot | 38 49 02 N | 076 01 15 W |
| Chapel Cove | Bay | 0 | Dorchester | 38 28 30 N | 076 17 56 W |
| Chapel Cove | Bay | 3 | Talbot | 38 47 05 N | 076 07 42 W |
| Chapel Creek | Bay | -3 | Dorchester | 38 36 15 N | 076 12 44 W |
| Chapel Forge Special Education Center | School | 37 | Prince George's | 38 59 11 N | 076 44 12 W |
| Chapel Heights | Populated Place | 245 | Carroll | 39 32 48 N | 077 01 25 W |
| Chapel Hill | Populated Place | 158 | Baltimore | 39 26 15 N | 076 39 37 W |
| Chapel Hill | Populated Place | 45 | Calvert | 38 31 15 N | 076 36 45 W |
| Chapel Hill | Populated Place | 65 | Prince George's | 38 43 24 N | 076 58 57 W |
| Chapel Hill Elementary School | School | 68 | Baltimore | 39 24 03 N | 076 26 09 W |
| Chapel Hill School (historical) | School | 19 | Charles | 38 25 25 N | 077 11 55 W |
| Chapel Hill School (historical) | School | 64 | Prince George's | 38 43 43 N | 076 58 42 W |
| Chapel Hill Temple Church | Church | 219 | Allegany | 39 38 20 N | 078 45 42 W |
| Chapel Hills | Populated Place | 116 | Harford | 39 33 32 N | 076 10 13 W |
| Chapel Knoll | Populated Place | 26 | Anne Arundel | 38 51 25 N | 076 34 29 W |
| Chapel Lutheran Church | Church | 175 | Frederick | 39 29 12 N | 077 16 45 W |
| Chapel Manor | Populated Place | 61 | Baltimore | 39 24 25 N | 076 27 49 W |
| Chapel Oaks | Populated Place | 29 | Prince George's | 38 54 29 N | 076 55 04 W |
| Chapel Oaks Volunteer Fire Department Company 38 | Building | | Prince George's | 39 31 02 N | 077 31 11 W |
| Chapel of the Epiphany | Church | 14 | Caroline | 38 42 44 N | 075 54 33 W |
| Chapel of the Holy Cross | Church | 7 | Kent | 39 15 33 N | 075 50 14 W |
| Chapel of the Immaculate Conception | Church | 202 | Frederick | 39 40 52 N | 077 21 16 W |
| Chapel of the Incarnation | Church | 67 | Prince George's | 38 41 51 N | 076 51 09 W |
| Chapel of the Nativity | Church | 125 | Baltimore (city) | 39 22 04 N | 076 36 37 W |
| Chapel of the Redemption | Church | 6 | Baltimore (city) | 39 16 10 N | 076 35 30 W |
| Chapel Point | Cape | 5 | Charles | 38 27 50 N | 077 01 45 W |
| Chapel Point | Populated Place | 7 | Charles | 38 27 49 N | 077 01 44 W |
| Chapel Point State Park | Park | 41 | Charles | 38 28 09 N | 077 00 50 W |
| Chapel Point Woods | Populated Place | 47 | Charles | 38 28 05 N | 076 59 40 W |
| Chapel Ridge | Populated Place | 178 | Baltimore | 39 26 47 N | 076 40 06 W |
| Chapel Station | Populated Place | 18 | Talbot | 38 51 58 N | 076 00 44 W |
| Chapel Valley | Populated Place | 73 | Baltimore | 39 24 38 N | 076 27 49 W |
| Chapel Woods | Populated Place | 146 | Howard | 39 13 31 N | 076 55 42 W |
| Chapel Woods | Populated Place | 18 | Talbot | 38 51 47 N | 075 58 29 W |
| Chapel Woods School (historical) | School | 152 | Washington | 39 35 01 N | 077 44 22 W |
| Chapelgate | Populated Place | 69 | Anne Arundel | 39 04 01 N | 076 42 07 W |
| Chapelgate | Populated Place | 177 | Baltimore | 39 27 09 N | 076 39 45 W |
| Chapelgate Christian Academy | School | 146 | Howard | 39 18 00 N | 076 54 15 W |
| Chapelgate Presbyterian Church | Church | 127 | Howard | 39 16 53 N | 076 49 32 W |
| Chapelview | Populated Place | 110 | Howard | 39 16 22 N | 076 48 29 W |
| Chaple | Populated Place | 18 | Talbot | 38 50 41 N | 076 01 13 W |
| Chaplen Memorial Church | Church | 0 | Dorchester | 38 27 47 N | 076 18 15 W |
| Chapman Landing | Populated Place | 1 | Charles | 38 37 17 N | 077 07 09 W |
| Chapman Point | Cape | 0 | Charles | 38 37 06 N | 077 07 29 W |
| Chapmans Point | Cape | 5 | Charles | 38 41 23 N | 077 04 58 W |
| Chapter Point | Cape | 0 | Wicomico | 38 22 35 N | 075 51 47 W |
| Chapter Point Marsh | Swamp | 0 | Wicomico | 38 22 42 N | 075 51 23 W |
| Chaptico | Populated Place | 5 | St. Mary's | 38 22 03 N | 076 46 59 W |
| Chaptico Bay | Bay | 3 | St. Mary's | 38 21 16 N | 076 49 20 W |
| Chaptico Creek | Stream | | St. Mary's | 38 21 57 N | 076 47 16 W |
| Chaptico Point | Cape | 6 | St. Mary's | 38 21 19 N | 076 48 23 W |
| Chaptico Post Office | Post Office | 5 | St. Mary's | 38 22 05 N | 076 46 58 W |
| Chaptico Run | Stream | | St. Mary's | 38 21 23 N | 076 48 26 W |
| Chaptico Wharf | Locale | 6 | St. Mary's | 38 19 37 N | 076 49 58 W |
| Char-Nor Manor | Populated Place | 6 | Queen Anne's | 39 14 19 N | 075 59 07 W |
| Charbonnet | Populated Place | 219 | Harford | 39 37 04 N | 076 31 02 W |
| Charcoal Hill | Summit | 819 | Garrett | 39 22 18 N | 079 27 52 W |
| Charing Cross | Populated Place | 38 | Anne Arundel | 39 00 51 N | 076 40 56 W |
| Charing Cross Shopping Center | Locale | 139 | Baltimore | 39 17 31 N | 076 42 55 W |
| Charity Baptist Church | Church | 12 | Baltimore (city) | 39 17 50 N | 076 36 06 W |
| Charity Meeting House Cemetery | Cemetery | 239 | Carroll | 39 31 56 N | 076 55 46 W |
| Charity Methodist Church | Church | 12 | Wicomico | 38 24 40 N | 075 36 06 W |
| Charity Point | Cape | 0 | Dorchester | 38 20 52 N | 076 14 13 W |
| Charlene | Populated Place | 126 | Montgomery | 39 10 35 N | 077 11 15 W |
| Charles Branch | Stream | | Prince George's | 38 47 18 N | 076 42 55 W |
| Charles Branch Stream Valley Park | Park | 19 | Prince George's | 38 46 47 N | 076 45 39 W |
| Charles Carroll High School | School | 195 | Carroll | 39 40 36 N | 077 02 08 W |
| Charles Carroll House | Building | | Anne Arundel | 38 58 27 N | 076 29 16 W |
| Charles Carroll Middle School | School | 12 | Prince George's | 38 58 02 N | 076 52 52 W |
| Charles Carroll of Carrollton Elementary School | School | 11 | Baltimore (city) | 39 17 38 N | 076 36 01 W |
| Charles County | Civil | 50 | Charles | 38 29 00 N | 076 58 59 W |
| Charles County Community College | School | 56 | Charles | 38 33 32 N | 077 00 38 W |
| Charles County Community College at Saint Marys | School | 14 | St. Mary's | 38 14 26 N | 076 29 41 W |
| Charles County Courthouse | Building | 56 | Charles | 38 31 48 N | 076 58 43 W |
| Charles County Detention Center | Building | 44 | Charles | 38 31 26 N | 076 59 04 W |
| Charles County Gardens | Populated Place | 56 | Charles | 38 35 13 N | 076 52 00 W |
| Charles County Government Building | Building | 54 | Charles | 38 31 52 N | 076 58 52 W |
| Charles County Museum | Building | 4 | Charles | 38 30 39 N | 077 01 16 W |
| Charles County Nursing Home | Hospital | 59 | Charles | 38 32 01 N | 076 57 31 W |
| Charles County Plaza Shopping Center | Locale | 61 | Charles | 38 37 25 N | 076 54 59 W |
| Charles County Public Library | Building | 53 | Charles | 38 31 49 N | 076 58 16 W |
| Charles County Sanitary Landfill | Locale | 47 | Charles | 38 32 13 N | 077 08 46 W |
| Charles County Vocational-Technical Center | School | 58 | Charles | 38 34 18 N | 077 01 46 W |
| Charles Creek | Stream | | Dorchester | 38 20 21 N | 076 10 37 W |
| Charles Herbert Flowers High School | School | 43 | Prince George's | 38 56 00 N | 076 50 04 W |
| Charles Manor | Populated Place | 161 | Harford | 39 31 42 N | 076 27 10 W |
| Charles Memorial Gardens | Cemetery | 23 | St. Mary's | 38 18 35 N | 076 40 02 W |
| Charles Mill | Locale | 111 | Washington | 39 31 50 N | 077 49 29 W |
| Charles Point | Cape | -3 | Somerset | 38 04 29 N | 075 47 17 W |
| Charles Run | Stream | | Baltimore | 39 34 20 N | 076 36 51 W |
| Charles Village | Populated Place | 65 | Baltimore (city) | 39 19 23 N | 076 36 48 W |
| Charles Village-Abell Historic District | Park | 65 | Baltimore (city) | 39 19 24 N | 076 36 53 W |
| Charles Wesley United Methodist Church | Church | 6 | Queen Anne's | 39 02 27 N | 076 04 14 W |
| Charlesmont | Populated Place | 3 | Baltimore | 39 16 32 N | 076 28 53 W |
| Charlesmont Park | Park | 3 | Baltimore | 39 16 22 N | 076 28 55 W |
| Charlesmont School | School | 3 | Baltimore | 39 16 26 N | 076 29 06 W |