| Allegany - Anne Arundel - Baltimore (city) - Baltimore County - Calvert - Caroline - Carroll - Cecil - Charles - Dorchester - Frederick - Garrett - Harford - Howard - Kent - Montgomery - Prince George's - Queen Anne's - Somerset - St. Mary's - Talbot - Washington - Wicomico - Worcester |
This National Park Service list is complete through NPS recent listings posted October 25, 2024.[1]
- ^ National Park Service, United States Department of the Interior, "National Register of Historic Places: Weekly List Actions", retrieved October 25, 2024.