Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Chesapeake High School | School | 10 | Baltimore | 39 17 33 N | 076 25 10 W |
| Chesapeake Industrial Park | Locale | 9 | Baltimore | 39 19 50 N | 076 25 52 W |
| Chesapeake Terrace | Populated Place | 3 | Baltimore | 39 13 14 N | 076 27 14 W |
| Chesapeake Terrace Elementary School | School | 6 | Baltimore | 39 13 16 N | 076 26 56 W |
| Chesterfield | Populated Place | 161 | Baltimore | 39 34 05 N | 076 39 01 W |
| Chesterwood | Populated Place | 5 | Baltimore | 39 15 28 N | 076 29 49 W |
| Chesterwood Park | Park | 2 | Baltimore | 39 15 09 N | 076 29 31 W |
| Chestnut Grove Church | Church | 187 | Baltimore | 39 30 45 N | 076 33 01 W |
| Chestnut Hill | Populated Place | 136 | Baltimore | 39 24 19 N | 076 37 11 W |
| Chestnut Hill Country Club | Locale | 176 | Baltimore | 39 26 43 N | 076 41 14 W |
| Chestnut Ridge | Populated Place | 203 | Baltimore | 39 27 35 N | 076 43 56 W |
| Chestnut Ridge | Ridge | 195 | Baltimore | 39 29 03 N | 076 43 30 W |
| Chestnut Ridge Volunteer Fire Company Station 50 | Building | | Baltimore | 39 27 13 N | 076 43 38 W |
| Chevra Ahavas Chesed Cemetery | Cemetery | 189 | Baltimore | 39 22 44 N | 076 49 12 W |
| Childrens Rehabilitation Institute (historical) | Building | 160 | Baltimore | 39 30 36 N | 076 42 39 W |
| Childrens Village | Building | 154 | Baltimore | 39 27 39 N | 076 36 12 W |
| Chimney Branch | Stream | | Baltimore | 39 24 17 N | 076 51 36 W |
| Chink Creek | Stream | | Baltimore | 39 15 29 N | 076 28 42 W |
| Christ Evangelical Lutheran Church | Church | 17 | Baltimore | 39 16 02 N | 076 31 13 W |
| Christ Evangelical Lutheran Church | Church | 120 | Baltimore | 39 17 05 N | 076 42 50 W |
| Christ the King Roman Catholic Church | Church | 3 | Baltimore | 39 14 41 N | 076 30 29 W |
| Christadelphian Chapel | Church | 147 | Baltimore | 39 16 22 N | 076 43 45 W |
| Christian Temple | Church | 123 | Baltimore | 39 16 56 N | 076 42 59 W |
| Church Lane Elementary School | School | 160 | Baltimore | 39 22 08 N | 076 46 47 W |
| Church Lane Shopping Center | Locale | | Baltimore | 39 27 45 N | 076 38 13 W |
| Church of Christ | Church | 7 | Baltimore | 39 18 21 N | 076 28 44 W |
| Church of God | Church | 11 | Baltimore | 39 18 30 N | 076 28 42 W |
| Church of God | Church | 211 | Baltimore | 39 35 23 N | 076 41 22 W |
| Church of the Ascension | Church | 23 | Baltimore | 39 14 27 N | 076 41 25 W |
| Church of the Holy Apostles | Church | 35 | Baltimore | 39 15 20 N | 076 41 33 W |
| Church of the Holy Nativity | Church | 37 | Baltimore | 39 15 06 N | 076 41 44 W |
| Church of the Open Bible | Church | 8 | Baltimore | 39 18 23 N | 076 28 43 W |
| Churches of International Fellowship | Church | 146 | Baltimore | 39 21 59 N | 076 42 58 W |
| Claphams Point | Cape | 0 | Baltimore | 39 14 52 N | 076 29 37 W |
| Clark Point | Cape | -7 | Baltimore | 39 19 03 N | 076 25 30 W |
| Claybank Point | Cape | 0 | Baltimore | 39 14 53 N | 076 24 53 W |
| Clear Spring Water Reservoir | Reservoir | 50 | Baltimore | 39 15 30 N | 076 42 23 W |
| Clear Spring Water Reservoir Dam | Dam | 50 | Baltimore | 39 15 30 N | 076 42 23 W |
| Clement Cove | Bay | 0 | Baltimore | 39 14 16 N | 076 30 04 W |
| Cloisters | Populated Place | 131 | Baltimore | 39 23 13 N | 076 37 35 W |
| Cloisters Child Museum | Building | 148 | Baltimore | 39 24 37 N | 076 40 14 W |
| Cloverfield | Populated Place | 111 | Baltimore | 39 34 10 N | 076 37 42 W |
| Cloverfield Manor | Populated Place | 94 | Baltimore | 39 23 55 N | 076 30 09 W |
| Club Cove | Bay | 3 | Baltimore | 39 15 10 N | 076 28 29 W |
| Clynmalira Church | Church | 199 | Baltimore | 39 32 20 N | 076 34 22 W |
| Coachmans Field | Populated Place | 171 | Baltimore | 39 37 45 N | 076 39 27 W |
| Coal Pier Channel | Canal | -3 | Baltimore | 39 12 43 N | 076 30 13 W |
| Cochrans Pond | Lake | 94 | Baltimore | 39 22 38 N | 076 38 01 W |
| Cockeys Old Tavern (historical) | Building | 132 | Baltimore | 39 25 46 N | 076 40 13 W |
| Cockeysville | Populated Place | 94 | Baltimore | 39 28 52 N | 076 38 38 W |
| Cockeysville Area Branch Baltimore County Public Library | Building | 130 | Baltimore | 39 27 37 N | 076 37 48 W |
| Cockeysville Baptist Church | Church | 111 | Baltimore | 39 28 29 N | 076 38 07 W |
| Cockeysville Middle School | School | 109 | Baltimore | 39 28 21 N | 076 37 47 W |
| Cockeysville Road Industrial Park | Locale | 89 | Baltimore | 39 28 42 N | 076 38 54 W |
| Cockeysville Volunteer Fire Company Station 39 | Building | | Baltimore | 39 29 31 N | 076 38 58 W |
| Coffin Point | Cape | 2 | Baltimore | 39 13 56 N | 076 30 13 W |
| Colgate | Populated Place | 29 | Baltimore | 39 17 47 N | 076 30 59 W |
| Colgate Elementary School | School | 37 | Baltimore | 39 17 40 N | 076 31 07 W |
| Colgate Recreation Area | Park | 26 | Baltimore | 39 17 50 N | 076 31 16 W |
| College Hills | Populated Place | 121 | Baltimore | 39 15 17 N | 076 43 49 W |
| Colonial Church | Church | 147 | Baltimore | 39 22 00 N | 076 42 57 W |
| Colonial Gardens | Populated Place | 144 | Baltimore | 39 16 35 N | 076 45 31 W |
| Colonial Park | Populated Place | 129 | Baltimore | 39 18 22 N | 076 43 14 W |
| Colonial Shopping Center | Locale | 145 | Baltimore | 39 21 47 N | 076 42 44 W |
| Commerce Industrial Park | Locale | | Baltimore | 39 15 01 N | 076 40 27 W |
| Community Church | Church | 216 | Baltimore | 39 27 58 N | 076 49 44 W |
| Community College of Baltimore County Catonsville | School | 134 | Baltimore | 39 15 10 N | 076 44 07 W |
| Community College of Baltimore County Dundalk | School | 27 | Baltimore | 39 15 57 N | 076 30 50 W |
| Community College of Baltimore County Essex | School | 59 | Baltimore | 39 21 13 N | 076 28 53 W |
| Compass Run | Stream | | Baltimore | 39 38 17 N | 076 46 36 W |
| Congregation Beth Israel | Church | 185 | Baltimore | 39 22 23 N | 076 48 35 W |
| Conner House | Building | | Baltimore | 39 24 21 N | 076 35 31 W |
| Cooks Branch | Stream | | Baltimore | 39 26 31 N | 076 53 10 W |
| Cooper Branch | Stream | | Baltimore | 39 15 54 N | 076 47 28 W |
| Cooperfield | Populated Place | 169 | Baltimore | 39 31 19 N | 076 35 32 W |
| Cooperfield | Populated Place | 156 | Baltimore | 39 25 52 N | 076 39 24 W |
| Coopersville | Populated Place | 133 | Baltimore | 39 32 51 N | 076 44 31 W |
| Corbett | Populated Place | 109 | Baltimore | 39 34 12 N | 076 37 05 W |
| Corbett Hill Farms | Populated Place | 156 | Baltimore | 39 33 21 N | 076 35 58 W |
| Correlli Estates | Populated Place | 80 | Baltimore | 39 24 58 N | 076 26 21 W |
| Councilmans Run | Stream | | Baltimore | 39 29 14 N | 076 46 37 W |
| Country Club of Maryland | Locale | 134 | Baltimore | 39 23 11 N | 076 35 20 W |
| Country Club Park | Populated Place | 103 | Baltimore | 39 25 34 N | 076 37 56 W |
| Country Ridge | Populated Place | 5 | Baltimore | 39 18 38 N | 076 26 60 W |
| Country Ridge Shopping Center | Locale | 9 | Baltimore | 39 18 34 N | 076 26 54 W |
| County Home Park | Park | 160 | Baltimore | 39 27 56 N | 076 37 23 W |
| Coventry | Populated Place | 144 | Baltimore | 39 24 12 N | 076 33 17 W |
| Cowdensville | Populated Place | 36 | Baltimore | 39 14 49 N | 076 42 08 W |
| Cowen Run | Stream | | Baltimore | 39 25 50 N | 076 31 21 W |
| Cowpen | Populated Place | 96 | Baltimore | 39 24 18 N | 076 33 34 W |
| Cowpen Creek | Stream | | Baltimore | 39 19 29 N | 076 25 45 W |
| Cox Point | Cape | 0 | Baltimore | 39 17 35 N | 076 27 51 W |
| Cox Point Park | Park | 5 | Baltimore | 39 17 42 N | 076 27 50 W |
| Cranbrook Shopping Center | Locale | 119 | Baltimore | 39 28 21 N | 076 37 19 W |
| Crandon | Populated Place | 201 | Baltimore | 39 28 09 N | 076 49 02 W |
| Cranwood | Populated Place | 155 | Baltimore | 39 23 38 N | 076 42 32 W |
| Cromwell Bridge | Bridge | 46 | Baltimore | 39 25 31 N | 076 31 46 W |
| Cromwell Station | Populated Place | 129 | Baltimore | 39 24 25 N | 076 32 48 W |
| Cromwell Woods | Populated Place | 104 | Baltimore | 39 25 05 N | 076 32 19 W |
| Cromwood | Populated Place | 142 | Baltimore | 39 24 05 N | 076 33 13 W |
| Crondall Corner Shops Shopping Center | Locale | | Baltimore | 39 26 03 N | 076 46 49 W |
| Cronhardt | Populated Place | 202 | Baltimore | 39 26 29 N | 076 42 53 W |
| Cross Creek | Populated Place | 127 | Baltimore | 39 31 50 N | 076 37 24 W |
| Cross Ore Bank | Mine | 128 | Baltimore | 39 25 00 N | 076 43 14 W |
| Crown Estates Park | Park | 146 | Baltimore | 39 21 56 N | 076 46 02 W |
| Cub Hill | Populated Place | 116 | Baltimore | 39 24 32 N | 076 30 49 W |
| Cub Hill Farms | Populated Place | 110 | Baltimore | 39 24 55 N | 076 31 49 W |
| Cub Hills | Populated Place | 113 | Baltimore | 39 24 56 N | 076 30 57 W |
| Cuckold Point | Cape | 0 | Baltimore | 39 14 16 N | 076 23 58 W |
| Cunninghill Cove | Bay | 3 | Baltimore | 39 21 26 N | 076 20 34 W |