| | Date | Description | Links | Location | MSA Citation |
| Details | 1948-2010 | Allegany County | | BA/05/28/027 | S1878-1 |
| Details | 1938-2009 | Anne Arundel County | | BA/05/28/027 | S1878-2 |
| Details | 1965-1998 | Baltimore City | | BA/05/28/027 | S1878-3 |
| Details | 1939-1964 | Baltimore County | | BA/05/28/027 | S1878-4 |
| Details | 1950-1991 | Baltimore County | | BA/05/28/027 | S1878-5 |
| Details | 1938-2001 | Calvert County | | BA/05/28/027 | S1878-6 |
| Details | 1939-2003 | Caroline County | | BA/05/28/027 | S1878-7 |
| Details | 1947-2002 | Carroll County | | BA/05/28/027 | S1878-8 |
| Details | 1939-2003 | Cecil County | | BA/05/28/027 | S1878-9 |
| Details | 1938-2007 | Charles County | | BA/05/28/028 | S1878-10 |
| Details | 1938-1999 | Dorchester County | | BA/05/28/028 | S1878-11 |
| Details | 1938-2010 | Frederick County | | BA/05/28/028 | S1878-12 |
| Details | 1942-2000 | Garrett County | | BA/05/28/028 | S1878-13 |
| Details | 1938-2004 | Harford County | | BA/05/28/028 | S1878-14 |
| Details | 1939-2003 | Howard County | | BA/05/28/028 | S1878-15 |
| Details | 1939-1997 | Kent County | | BA/05/28/028 | S1878-16 |
| Details | 1938-2006 | Montgomery County | | BA/05/28/028 | S1878-17 |
| Details | 1971-2008 | Prince George's County | | BA/05/28/028 | S1878-18 |
| Details | 1939-1970 | Prince George's County | | BA/05/28/029 | S1878-19 |
| Details | 1995 | Queen Anne's County | | BA/05/28/029 | S1878-20 |
| Details | 1999 | St. Mary's County | | BA/05/28/029 | S1878-21 |
| Details | 1999 | Somerset County | | BA/05/28/029 | S1878-22 |
| Details | 2001 | Talbot County | | BA/05/28/029 | S1878-23 |
| Details | 1998 | Washington County | | BA/05/28/029 | S1878-24 |
| Details | 1993 | Wicomico County | | BA/05/28/029 | S1878-25 |
| Details | 2000 | Worcester County | | BA/05/28/029 | S1878-26 |
| Details | | Baltimore and Worcester County (CD) | | BA/05/28/029 | S1878-27 |
| Details | | Wicomico County (CD) | | BA/05/28/029 | S1878-28 |