Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Cashell Road Park | Park | 126 | Montgomery | 39 08 50 N | 077 05 20 W |
| Cashell Woods | Populated Place | 139 | Montgomery | 39 07 46 N | 077 04 41 W |
| Cedar Creek Estates | Populated Place | 125 | Montgomery | 39 08 54 N | 077 17 16 W |
| Cedar Grove | Populated Place | 211 | Montgomery | 39 14 48 N | 077 14 02 W |
| Cedar Grove Elementary School | School | 219 | Montgomery | 39 14 58 N | 077 13 58 W |
| Cedar Grove Knolls | Populated Place | 223 | Montgomery | 39 15 03 N | 077 13 49 W |
| Cedar Heights | Populated Place | 246 | Montgomery | 39 15 11 N | 077 13 46 W |
| Cedar Heights Estates | Populated Place | 217 | Montgomery | 39 15 23 N | 077 13 18 W |
| Cedar Island | Island | 15 | Montgomery | 38 58 08 N | 077 08 47 W |
| Cedar Knoll Farms | Populated Place | 154 | Montgomery | 39 08 36 N | 076 58 55 W |
| Cedarcroft Sanitorium (historical) | Hospital | 113 | Montgomery | 39 03 12 N | 076 58 24 W |
| Center for the Handicapped | Building | 107 | Montgomery | 39 01 51 N | 077 01 35 W |
| Centerway Park | Park | 124 | Montgomery | 39 10 20 N | 077 11 39 W |
| Central Baptist Church | Church | 145 | Montgomery | 39 08 51 N | 077 08 46 W |
| Central Health Clinic | Hospital | 107 | Montgomery | 39 01 31 N | 077 02 36 W |
| Central Maintenance Depot | Locale | 139 | Montgomery | 39 07 32 N | 077 09 43 W |
| Chadswood | Populated Place | 160 | Montgomery | 39 11 38 N | 077 14 08 W |
| Charlene | Populated Place | 126 | Montgomery | 39 10 35 N | 077 11 15 W |
| Charred Oak Estates | Populated Place | 71 | Montgomery | 39 00 10 N | 077 09 43 W |
| Chatauqua Island | Island | 16 | Montgomery | 38 57 53 N | 077 08 29 W |
| Chelsea School | School | 101 | Montgomery | 38 59 58 N | 077 01 21 W |
| Cherrington Picnic Area | Locale | 67 | Montgomery | 39 11 41 N | 077 28 09 W |
| Cherry Valley | Populated Place | 151 | Montgomery | 39 08 20 N | 077 04 24 W |
| Cherrywood | Populated Place | 139 | Montgomery | 39 08 17 N | 077 04 59 W |
| Chesney | Populated Place | 222 | Montgomery | 39 16 05 N | 077 13 09 W |
| Chestnut Hills | Populated Place | 113 | Montgomery | 39 01 48 N | 077 01 59 W |
| Chestnut Lodge Sanitarium | Hospital | 135 | Montgomery | 39 04 49 N | 077 10 01 W |
| Chestnut Ridge | Populated Place | 118 | Montgomery | 39 02 05 N | 077 02 11 W |
| Chevey Chase Library | Building | 86 | Montgomery | 38 59 28 N | 077 04 36 W |
| Chevy Chase | Populated Place | 110 | Montgomery | 38 58 16 N | 077 04 35 W |
| Chevy Chase Circle | Locale | 109 | Montgomery | 38 58 04 N | 077 04 36 W |
| Chevy Chase Country Club | Locale | 109 | Montgomery | 38 58 32 N | 077 04 38 W |
| Chevy Chase Elementary School | School | 103 | Montgomery | 38 58 42 N | 077 04 46 W |
| Chevy Chase Fire Station Company 7 | Building | 87 | Montgomery | 38 59 26 N | 077 04 36 W |
| Chevy Chase Junior College (historical) | School | 110 | Montgomery | 38 58 52 N | 077 04 44 W |
| Chevy Chase Lake | Populated Place | 89 | Montgomery | 38 59 31 N | 077 04 14 W |
| Chevy Chase Library | Building | 85 | Montgomery | 38 59 29 N | 077 04 36 W |
| Chevy Chase Manor | Populated Place | 97 | Montgomery | 38 58 43 N | 077 04 00 W |
| Chevy Chase Post Office | Post Office | 107 | Montgomery | 38 58 14 N | 077 04 39 W |
| Chevy Chase Section 4 (historical) | Populated Place | 98 | Montgomery | 38 58 49 N | 077 04 54 W |
| Chevy Chase Section Five | Populated Place | 93 | Montgomery | 38 59 01 N | 077 04 27 W |
| Chevy Chase Section Three | Populated Place | 105 | Montgomery | 38 58 44 N | 077 04 26 W |
| Chevy Chase Shopping Center | Locale | 96 | Montgomery | 38 57 44 N | 077 05 07 W |
| Chevy Chase Terrace | Populated Place | 99 | Montgomery | 38 58 20 N | 077 05 38 W |
| Chevy Chase View | Populated Place | 97 | Montgomery | 39 01 11 N | 077 04 57 W |
| Chevy Chase Village | Populated Place | 104 | Montgomery | 38 58 09 N | 077 04 44 W |
| Childrens Resource Center Library | Building | 112 | Montgomery | 39 03 15 N | 077 08 40 W |
| Chinese Bible Church | Church | 124 | Montgomery | 39 06 43 N | 077 05 21 W |
| Chisel Branch | Stream | | Montgomery | 39 05 37 N | 077 27 50 W |
| Chisel Branch Campground | Locale | 61 | Montgomery | 39 05 25 N | 077 27 46 W |
| Christ Congregational Church | Church | 96 | Montgomery | 39 00 44 N | 077 00 59 W |
| Christ Episcopal Church | Church | 82 | Montgomery | 39 01 06 N | 077 04 44 W |
| Christ Lutheran Church | Church | 106 | Montgomery | 38 59 23 N | 077 06 07 W |
| Christ the King Catholic Church | Church | 84 | Montgomery | 38 59 40 N | 077 02 56 W |
| Christian Cemetery | Cemetery | 118 | Montgomery | 39 16 37 N | 077 18 46 W |
| Church of Atonement Presbyterian Church | Church | 108 | Montgomery | 39 01 32 N | 077 02 46 W |
| Church of Christ at Manor Woods | Church | 120 | Montgomery | 39 05 49 N | 077 06 23 W |
| Church of God | Church | 213 | Montgomery | 39 14 56 N | 077 16 37 W |
| Church of Our Saviour | Church | 92 | Montgomery | 39 01 22 N | 076 58 37 W |
| Church of the Ascension | Church | 156 | Montgomery | 39 08 14 N | 077 11 38 W |
| Church of the Little Flower | Church | 77 | Montgomery | 38 57 38 N | 077 06 45 W |
| Church of the Nazarene | Church | 145 | Montgomery | 39 11 41 N | 077 11 05 W |
| Church of the Redeemer | Church | 52 | Montgomery | 38 58 11 N | 077 08 24 W |
| Church of the Transfiguration | Church | 145 | Montgomery | 39 05 04 N | 076 59 58 W |
| Churchill Town Sector Dam | Dam | 123 | Montgomery | 39 11 18 N | 077 16 59 W |
| Clagett Island | Island | 52 | Montgomery | 39 02 13 N | 077 16 28 W |
| Claggettsville | Populated Place | 226 | Montgomery | 39 19 02 N | 077 11 52 W |
| Clara Barton Elementary School (historical) | School | 48 | Montgomery | 38 58 24 N | 077 09 10 W |
| Clara Barton House | Building | 42 | Montgomery | 38 58 01 N | 077 08 27 W |
| Clarksbrook Estates | Populated Place | 184 | Montgomery | 39 14 01 N | 077 16 01 W |
| Clarksburg | Populated Place | 202 | Montgomery | 39 14 19 N | 077 16 46 W |
| Clarksburg Community Center | Building | 167 | Montgomery | 39 13 32 N | 077 15 50 W |
| Clarksburg Elementary School | School | 197 | Montgomery | 39 14 12 N | 077 16 53 W |
| Clarksburg Heights | Populated Place | 163 | Montgomery | 39 13 25 N | 077 15 50 W |
| Clarksburg Methodist Church | Church | 203 | Montgomery | 39 14 28 N | 077 16 47 W |
| Clarksburg Post Office | Post Office | 198 | Montgomery | 39 14 19 N | 077 16 43 W |
| Claysville | Populated Place | 171 | Montgomery | 39 11 38 N | 077 07 28 W |
| Clear Spring Park | Park | 119 | Montgomery | 39 11 13 N | 077 14 01 W |
| Clearspring Elementary School | School | 236 | Montgomery | 39 15 58 N | 077 12 29 W |
| Clearspring Manor | Populated Place | 238 | Montgomery | 39 16 21 N | 077 12 22 W |
| Cliff Bland Recreation Area | Park | 125 | Montgomery | 39 06 20 N | 077 17 41 W |
| Clifton Park Baptist Church | Church | 78 | Montgomery | 39 00 01 N | 076 59 39 W |
| Clifton Park Village | Populated Place | 75 | Montgomery | 39 00 04 N | 076 59 31 W |
| Cliftonbrook | Populated Place | 167 | Montgomery | 39 08 30 N | 076 59 19 W |
| Clopper | Populated Place | 137 | Montgomery | 39 08 59 N | 077 14 35 W |
| Clopper Lake | Reservoir | 100 | Montgomery | 39 08 37 N | 077 15 29 W |
| Clopper Mill Elementary School | School | 104 | Montgomery | 39 09 33 N | 077 15 43 W |
| Clopper Siding | Locale | 114 | Montgomery | 39 09 16 N | 077 14 17 W |
| Cloppers Mill | Locale | 105 | Montgomery | 39 09 15 N | 077 15 37 W |
| Cloverly | Populated Place | 159 | Montgomery | 39 06 29 N | 076 59 52 W |
| Cloverly Elementary School | School | 163 | Montgomery | 39 06 27 N | 076 59 39 W |
| Cloverly Park | Park | 153 | Montgomery | 39 06 26 N | 076 59 29 W |
| Cloverly Village Shopping Center | Locale | 162 | Montgomery | 39 06 35 N | 076 59 44 W |
| Cohasset | Populated Place | 104 | Montgomery | 38 59 08 N | 077 08 15 W |
| Cold Hill Academy (historical) | School | 256 | Montgomery | 39 16 55 N | 077 12 37 W |
| Cold Spring Elementary School | School | 109 | Montgomery | 39 03 33 N | 077 11 19 W |
| Colesville | Populated Place | 133 | Montgomery | 39 04 32 N | 077 00 07 W |
| Colesville Baptist Church | Church | 130 | Montgomery | 39 04 11 N | 077 00 18 W |
| Colesville Manor | Populated Place | 131 | Montgomery | 39 05 09 N | 077 00 13 W |
| Colesville Park | Populated Place | 144 | Montgomery | 39 05 55 N | 077 00 13 W |
| Colesville Post Office | Post Office | 123 | Montgomery | 39 04 21 N | 077 00 08 W |
| Colesville School | School | 147 | Montgomery | 39 05 09 N | 076 59 56 W |
| Colesville United Methodist Church | Church | 141 | Montgomery | 39 04 23 N | 077 00 25 W |
| Colesvivlle United Presbyterian Church | Church | 119 | Montgomery | 39 03 53 N | 077 00 05 W |
| College Garden Park | Park | 127 | Montgomery | 39 06 02 N | 077 09 46 W |
| College Gardens Elementary School | School | 134 | Montgomery | 39 06 10 N | 077 09 47 W |
| College Gardens Elementary School | School | 135 | Montgomery | 39 06 13 N | 077 09 43 W |
| College Plaza Shopping Center | Locale | 147 | Montgomery | 39 06 12 N | 077 09 31 W |
| College View | Populated Place | 125 | Montgomery | 39 02 35 N | 077 03 55 W |
| Colonel E Brooke Lee Middle School | School | 128 | Montgomery | 39 02 59 N | 077 01 51 W |