Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| District 3 (Centreville) Election District | Civil | 14 | Queen Anne's | 39 02 56 N | 076 04 08 W |
| District 3 (Denton) Election District | Civil | 14 | Caroline | 38 52 06 N | 075 46 41 W |
| District 3 (Elkton) Election District | Civil | 30 | Cecil | 39 37 24 N | 075 51 12 W |
| District 3 (Flintstone) Election District | Civil | 266 | Allegany | 39 40 33 N | 078 33 02 W |
| District 3 (Grantsville) Election District | Civil | 768 | Garrett | 39 40 10 N | 079 09 00 W |
| District 3 (Hagerstown) Election District | Civil | 177 | Washington | 39 38 00 N | 077 44 06 W |
| District 3 (Leonardtown) Election District | Civil | 7 | St. Mary's | 38 15 49 N | 076 39 25 W |
| District 3 (Marlboro) Election District | Civil | 44 | Prince George's | 38 49 49 N | 076 45 09 W |
| District 3 (Middletown) Election District | Civil | 153 | Frederick | 39 26 49 N | 077 33 30 W |
| District 3 (Myers) Election District | Civil | 230 | Carroll | 39 40 54 N | 077 02 17 W |
| District 3 (Nanjemoy) Election District | Civil | 22 | Charles | 38 26 28 N | 077 13 30 W |
| District 3 (Poolesville) Election District | Civil | 121 | Montgomery | 39 08 15 N | 077 25 44 W |
| District 3 (Sunderland) Election District | Civil | 49 | Calvert | 38 40 40 N | 076 35 46 W |
| District 3 (Trappe) Election District | Civil | 15 | Talbot | 38 39 41 N | 076 03 49 W |
| District 3 (Tyaskin) Election District | Civil | 2 | Wicomico | 38 18 53 N | 075 49 53 W |
| District 3 (Vienna) Election District | Civil | 5 | Dorchester | 38 30 47 N | 075 51 18 W |
| District 3 (West Friendship) Election District | Civil | 166 | Howard | 39 18 21 N | 076 56 01 W |
| District 3 (Worton) Election District | Civil | 18 | Kent | 39 19 47 N | 076 06 41 W |
| District 3 Assessment District | Civil | 4 | Anne Arundel | 39 05 28 N | 076 28 26 W |
| District 3 Election District | Civil | 162 | Baltimore | 39 23 48 N | 076 43 02 W |
| District 30 (Zihlman) Election District | Civil | 610 | Allegany | 39 40 58 N | 078 54 56 W |
| District 31 (McCoole) Election District | Civil | 602 | Allegany | 39 29 07 N | 078 58 38 W |
| District 34 (Bedford Road) Election District | Civil | 278 | Allegany | 39 42 16 N | 078 42 18 W |
| District 35 (East Cumberland) Election District | Civil | 274 | Allegany | 39 39 58 N | 078 44 16 W |
| District 4 (Allens Fresh) Election District | Civil | 44 | Charles | 38 26 06 N | 076 54 42 W |
| District 4 (Bloomington) Election District | Civil | 472 | Garrett | 39 30 27 N | 079 08 09 W |
| District 4 (Canal) Election District | Civil | 219 | Allegany | 39 38 03 N | 078 45 19 W |
| District 4 (Chapel) Election District | Civil | 18 | Talbot | 38 52 01 N | 076 00 51 W |
| District 4 (Chaptico) Election District | Civil | 3 | St. Mary's | 38 22 11 N | 076 47 05 W |
| District 4 (Chestertown) Election District | Civil | 18 | Kent | 39 13 34 N | 076 04 09 W |