Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Saint Josephs School | School | 78 | Baltimore | 39 23 09 N | 076 29 49 W |
| Saint Josephs School | School | 62 | Baltimore (city) | 39 16 58 N | 076 40 37 W |
| Saint Josephs School | School | 65 | Prince George's | 39 02 12 N | 076 55 12 W |
| Saint Josephs School | School | 42 | St. Mary's | 38 22 19 N | 076 41 31 W |
| Saint Josephs School (historical) | School | 538 | Allegany | 39 35 35 N | 078 56 56 W |
| Saint Josephs School (historical) | School | 0 | Anne Arundel | 38 52 12 N | 076 30 36 W |
| Saint Josephs Spiritual Center | Church | 66 | Baltimore (city) | 39 16 58 N | 076 40 47 W |
| Saint Jude House | Church | 2 | Wicomico | 38 21 59 N | 075 36 13 W |
| Saint Judes Catholic Church | Church | 19 | Cecil | 39 35 17 N | 075 56 29 W |
| Saint Judes Church | Church | 94 | Montgomery | 39 03 56 N | 077 05 45 W |
| Saint Judes School | School | 94 | Montgomery | 39 03 56 N | 077 05 45 W |
| Saint Katharines Convent | Church | 35 | Baltimore (city) | 39 18 20 N | 076 34 52 W |
| Saint Katherine of Sienna Roman Catholic Church | Church | 34 | Baltimore (city) | 39 18 19 N | 076 34 54 W |
| Saint Katherines Cemetery | Cemetery | 47 | Charles | 38 30 09 N | 077 03 30 W |
| Saint Katherines Church | Church | 45 | Charles | 38 30 08 N | 077 03 29 W |
| Saint Katherines Episcopal Church | Church | 51 | Baltimore (city) | 39 18 24 N | 076 38 11 W |
| Saint Katherines School | School | 32 | Baltimore (city) | 39 18 18 N | 076 34 55 W |
| Saint Lawrence Cemetery | Cemetery | 85 | Anne Arundel | 39 08 26 N | 076 45 29 W |
| Saint Lawrence Chapel | Church | 99 | Baltimore (city) | 39 18 48 N | 076 42 21 W |
| Saint Lawrence Neck | Cape | 3 | Worcester | 38 13 25 N | 075 15 47 W |
| Saint Lawrence Roman Catholic Church | Church | 86 | Anne Arundel | 39 08 27 N | 076 45 28 W |
| Saint Lawrences Church | Church | 106 | Baltimore | 39 18 31 N | 076 42 59 W |
| Saint Leo Roman Catholic Church | Church | 4 | Baltimore (city) | 39 17 14 N | 076 36 03 W |
| Saint Leonard | Populated Place | 33 | Calvert | 38 28 27 N | 076 30 23 W |
| Saint Leonard (historical) | Populated Place | 19 | Calvert | 38 26 50 N | 076 29 14 W |
| Saint Leonard Creek | Stream | | Calvert | 38 23 24 N | 076 29 56 W |
| Saint Leonard Post Office | Post Office | 34 | Calvert | 38 28 30 N | 076 30 24 W |
| Saint Leonard Shores | Populated Place | 30 | Calvert | 38 26 13 N | 076 29 26 W |
| Saint Leonard Volunteer Fire Department and Rescue Squad Company 7 | Building | | Calvert | 38 47 26 N | 076 51 32 W |
| Saint Leos School | School | 4 | Baltimore (city) | 39 17 14 N | 076 36 08 W |
| Saint Louis Cemetery | Cemetery | 149 | Howard | 39 12 27 N | 076 57 33 W |
| Saint Louis Roman Catholic Church | Church | 154 | Howard | 39 12 17 N | 076 56 36 W |
| Saint Louis School | School | 156 | Howard | 39 12 19 N | 076 56 36 W |
| Saint Lucas Cemetery | Cemetery | 209 | Carroll | 39 35 42 N | 077 07 09 W |
| Saint Lucas Reformed Church (historical) | Church | 207 | Carroll | 39 35 36 N | 077 07 10 W |
| Saint Luke Cemetery | Cemetery | 114 | Frederick | 39 23 06 N | 077 28 31 W |
| Saint Luke Church | Church | 6 | St. Mary's | 38 05 55 N | 076 21 55 W |
| Saint Luke Lutheran Church | Church | 113 | Frederick | 39 23 07 N | 077 28 32 W |
| Saint Luke Methodist Episcopal Church (historical) | Church | 3 | Talbot | 38 42 18 N | 076 10 59 W |
| Saint Luke United Methodist Church | Church | 3 | Talbot | 38 47 03 N | 076 13 28 W |
| Saint Luke United Methodist Church | Church | 10 | Wicomico | 38 24 22 N | 075 41 15 W |
| Saint Lukes | Locale | 15 | Worcester | 38 16 25 N | 075 33 11 W |
| Saint Lukes African Methodist Episcopal Church (historical) | Church | 64 | Howard | 39 16 06 N | 076 48 05 W |
| Saint Lukes Catholic Church | Church | 1 | Worcester | 38 24 44 N | 075 03 33 W |
| Saint Lukes Cemetery | Cemetery | 215 | Baltimore | 39 27 43 N | 076 49 14 W |
| Saint Lukes Cemetery | Cemetery | 141 | Carroll | 39 33 26 N | 077 07 25 W |
| Saint Lukes Cemetery | Cemetery | 2 | Talbot | 38 47 00 N | 076 13 35 W |
| Saint Lukes Cemetery | Cemetery | 176 | Washington | 39 22 26 N | 077 40 00 W |
| Saint Lukes Cemetery | Cemetery | 9 | Worcester | 38 05 46 N | 075 27 10 W |
| Saint Lukes Chapel | Church | 7 | Anne Arundel | 38 57 48 N | 076 29 21 W |
| Saint Lukes Chapel | Church | 47 | Anne Arundel | 38 50 36 N | 076 39 30 W |
| Saint Lukes Church | Church | 210 | Baltimore | 39 35 08 N | 076 39 17 W |
| Saint Lukes Church | Church | 6 | Baltimore | 39 14 04 N | 076 26 33 W |
| Saint Lukes Church | Church | 30 | Calvert | 38 24 16 N | 076 30 08 W |
| Saint Lukes Church | Church | 140 | Carroll | 39 33 27 N | 077 07 26 W |
| Saint Lukes Church | Church | 3 | Dorchester | 38 36 36 N | 075 57 03 W |
| Saint Lukes Church | Church | 94 | Montgomery | 39 00 18 N | 077 01 26 W |
| Saint Lukes Church | Church | 79 | Prince George's | 38 48 22 N | 076 51 04 W |
| Saint Lukes Church | Church | 11 | Queen Anne's | 39 08 31 N | 075 59 11 W |
| Saint Lukes Church | Church | 0 | St. Mary's | 38 09 15 N | 076 31 11 W |
| Saint Lukes Church | Church | 175 | Washington | 39 22 25 N | 077 39 57 W |
| Saint Lukes Church | Church | 9 | Worcester | 38 05 48 N | 075 27 11 W |
| Saint Lukes Episcopal Cemetery | Cemetery | 146 | Montgomery | 39 11 36 N | 077 01 39 W |
| Saint Lukes Episcopal Church | Church | 32 | Baltimore (city) | 39 17 29 N | 076 38 16 W |
| Saint Lukes Episcopal Church | Church | 148 | Montgomery | 39 11 35 N | 077 01 38 W |
| Saint Lukes Episcopal Church | Church | 107 | Montgomery | 39 01 19 N | 077 07 21 W |
| Saint Lukes Episcopal Church | Church | 28 | Prince George's | 38 56 22 N | 076 55 36 W |
| Saint Lukes Evangelical Lutheran Church | Church | 90 | Baltimore (city) | 39 21 59 N | 076 32 55 W |
| Saint Lukes Evangelical Lutheran Church | Church | 86 | Baltimore (city) | 39 19 57 N | 076 37 57 W |
| Saint Lukes Evangelical Lutheran Church | Church | 6 | Baltimore (city) | 39 16 18 N | 076 31 49 W |
| Saint Lukes Lutheran Church | Church | 242 | Allegany | 39 40 17 N | 078 44 47 W |
| Saint Lukes Lutheran Church | Church | 154 | Montgomery | 39 08 49 N | 077 08 37 W |
| Saint Lukes Methodist Church | Church | 12 | Caroline | 38 53 03 N | 075 49 49 W |
| Saint Lukes Methodist Church | Church | 5 | Dorchester | 38 33 43 N | 076 04 51 W |
| Saint Lukes Methodist Church | Church | 64 | Howard | 39 16 06 N | 076 48 05 W |
| Saint Lukes Protestant Episcopal Church (historical) | Church | 93 | Frederick | 39 18 38 N | 077 28 31 W |
| Saint Lukes School | School | 6 | Baltimore | 39 14 06 N | 076 26 36 W |
| Saint Lukes United Church of Christ | Church | 30 | Baltimore (city) | 39 17 22 N | 076 38 18 W |
| Saint Lukes United Methodist Church | Church | 56 | Baltimore (city) | 39 18 04 N | 076 38 37 W |
| Saint Lukes United Methodist Church | Church | 131 | Howard | 39 21 38 N | 076 58 02 W |
| Saint Margaret Island | Island | 4 | St. Mary's | 38 15 05 N | 076 48 38 W |
| Saint Margaret Medical Center | Hospital | 6 | Anne Arundel | 39 01 20 N | 076 25 13 W |
| Saint Margarets | Populated Place | 27 | Anne Arundel | 39 01 15 N | 076 27 46 W |
| Saint Margarets Cemetery | Cemetery | 27 | Anne Arundel | 39 01 13 N | 076 27 43 W |
| Saint Margarets Episcopal Church | Church | 28 | Anne Arundel | 39 01 13 N | 076 27 45 W |
| Saint Margarets Farm | Populated Place | 24 | Anne Arundel | 39 01 00 N | 076 27 59 W |
| Saint Margarets Grove | Populated Place | 16 | St. Mary's | 38 15 35 N | 076 36 24 W |
| Saint Margarets Roman Catholic Church | Church | 119 | Harford | 39 32 26 N | 076 20 55 W |
| Saint Margarets School | School | 116 | Harford | 39 32 29 N | 076 20 56 W |
| Saint Margarets School | School | 58 | Prince George's | 38 52 58 N | 076 53 47 W |
| Saint Maria Goretti High School | School | 169 | Washington | 39 39 51 N | 077 42 16 W |
| Saint Mark Baptist Church | Church | 122 | Baltimore (city) | 39 19 31 N | 076 41 08 W |
| Saint Mark Lutheran Church | Church | 280 | Carroll | 39 36 37 N | 076 51 07 W |
| Saint Mark Lutheran Church | Church | 335 | Frederick | 39 42 06 N | 077 27 29 W |
| Saint Marks Baptist Church | Church | 55 | Baltimore (city) | 39 17 48 N | 076 39 12 W |
| Saint Marks Cemetery | Cemetery | 7 | Anne Arundel | 38 46 34 N | 076 34 06 W |
| Saint Marks Cemetery | Cemetery | 249 | Carroll | 39 37 14 N | 076 53 42 W |
| Saint Marks Cemetery | Cemetery | 81 | Cecil | 39 34 59 N | 076 04 27 W |
| Saint Marks Cemetery | Cemetery | 338 | Frederick | 39 34 57 N | 077 33 27 W |
| Saint Marks Cemetery | Cemetery | 153 | Frederick | 39 21 08 N | 077 36 00 W |
| Saint Marks Cemetery | Cemetery | 160 | Howard | 39 10 22 N | 076 57 12 W |
| Saint Marks Cemetery | Cemetery | 105 | Montgomery | 39 10 40 N | 077 19 14 W |
| Saint Marks Cemetery | Cemetery | 3 | Somerset | 38 04 21 N | 075 42 34 W |
| Saint Marks Cemetery | Cemetery | 152 | Washington | 39 33 03 N | 077 44 02 W |
| Saint Marks Cemetery | Cemetery | 9 | Worcester | 38 02 35 N | 075 27 24 W |
| Saint Marks Church | Church | 6 | Anne Arundel | 38 46 36 N | 076 34 04 W |
| Saint Marks Church | Church | 44 | Anne Arundel | 39 10 27 N | 076 42 36 W |
| Saint Marks Church | Church | 247 | Carroll | 39 37 13 N | 076 53 41 W |
| Saint Marks Church | Church | 25 | Cecil | 39 29 53 N | 075 58 05 W |
| Saint Marks Church | Church | 81 | Cecil | 39 34 59 N | 076 04 26 W |