| 24-32 Jonathan Street | C | |
| 38 Summit Avenue | C | |
| 62-64 W. Antietam Street | C | |
| 60 W. Antietam Street | C | |
| 101-103 S. Potomac Street | C | |
| 57-59 S. Potomac Street (MD 65) | C | WA-HAG-077 -- Colonial Hotel |
| 47-53 S. Potomac Street (MD 65) | C | WA-HAG-074 -- Heist Building |
| 43-45 S. Potomac Street (MD 65) | C | WA-HAG-072 -- Hager Hotel |
| 41 & 41 1/2 S. Potomac Street | C | WA-HAG-071 -- Modern Shoe Building |
| 39 S. Potomac Street (MD 65) | C | WA-HAG-070 -- Majestic Restaurant & Union Hall |
| 25-29 S. Potomac Street (MD 65) | C | |
| 13-19 S. Potomac Street | C | WA-HAG-062 -- Edison Apartments (Lakin Apartments) |
| 7-11 S. Potomac Street (MD 65) | C | |
| 1-3 S. Potomac Street (MD 65) | C | WA-HAG-057 -- Professional Arts Building (Ramacciotti P.A.B.) |
| 90-96 W. Washington Street | C | WA-HAG-119 -- Hamilton Hotel (Hotel Hamilton, Hamilton Plaza) |
| 50 Summit Avenue | C | WA-HAG-141 -- Dagmar Hotel (Dagmar Hall) |
| 28 Summit Avenue | C | |
| 26 Summit Avenue | C | |
| 95 W. Washington Street | C | WA-HAG-120 -- Washington County Courthouse |
| 21-25 S. Potomac Street (MD 65) | C | WA-HAG-063 -- Maryland Theatre (interior) |
| 12-14 S. Potomac Street (MD 65) | C | WA-HAG-061 -- Colonial Theatre (façade) |
| 21 Summit Avenue | C | WA-HAG-094 -- Old Washington County Library Building (Garland Groh Foundation Building) |
| 44-62 W. Franklin Street | C | WA-HAG-157 -- U.S. Post Office |
| 50-54 S. Potomac Street (MD 65) | C | WA-HAG-075 -- Masonic Temple |
| 43-47 W. Washington Street | C | WA-HAG-109 -- Updegraff's Hat, Glove, and Fur Manufactory |
| 49-53 W. Washington Street | C | WA-HAG-110 -- Updegraff's Building |
| 55-59 W. Washington Street | C | WA-HAG-112 -- Farmers & Merchants Bank Building |
| 49 Summit Avenue | C | WA-HAG-095 -- Walker House (Wright-Spiecher & Gardner Insurance) |
| 56-58 S. Potomac Street | C | WA-HAG-076 -- Sekula Property |
| 14-16 E. Antietam Street | C | |
| 46-48 S. Potomac Street (MD 65) | C | WA-HAG-073 -- Moss Building |
| 38-40 S. Potomac Street (MD 65) | C | |
| 32-36 S. Potomac Street (MD 65) | C | |
| 28 S. Potomac Street (MD 65) | C | |
| 6-8 S. Potomac Street (MD 65) | C | WA-HAG-059 -- Moose Lodge |
| 2-4 S. Potomac Street (MD 65) | C | |
| 6-8 Public Square (and 3-19 E. Washington Street) | C | WA-HAG-089 -- Alexander Inn |
| 10 Public Square | C | |
| 12-16 Public Square | C | |
| 10-12 E. Washington Street | C | |
| 101 W. Washington Street | C | WA-HAG-122 -- First National Bank Building (Nicodemus National Bank Building, Peoples National Bank) |
| 25-29 Summit Avenue | C | |
| 31 Summit Avenue | C | |
| 18 E. Washington Street | C | |
| 2-4 N. Potomac Street (MD 60) | C | |
| 6-12 N. Potomac Street (MD 60) | C | |
| 107-109 1/2 W. Franklin Street | C | WA-HAG-144 -- Wolf Building |
| 101 W. Franklin Street | C | WA-HAG-151 -- Grunnell Building |
| 55-57 Jonathan Street | C | |
| 49-51 Jonathan Street | C | |
| 36-38 Jonathan Street | C | |
| 48-56 Jonathan Street | C | |
| 69-71 W. Franklin Street | C | |
| 65-67 W. Franklin Street | C | |
| 63 W. Franklin Street | C | |
| 59-61 W. Franklin Street | C | |
| 55-57 W. Franklin Street | C | |
| 53 W. Franklin Street | C | |
| 49-51 W. Franklin Street | C | |
| 47 W. Franklin Street | C | |
| 80-82 W. Washington Street | C | WA-HAG-118 -- Maryland National Bank Building (First National Bank Building, Second National Bank Building) |
| 72-78 W. Washington Street | C | WA-HAG-116 -- Earles Building |
| 66-70 W. Washington Street | C | WA-HAG-115 -- Katz Jewelers/Twig Shop |
| 60-62 W. Washington Street | C | |
| 1 W. Franklin Street | C | WA-HAG-004 -- City Hall |
| 17-21 E. Franklin Street | C | WA-HAG-005 -- The Roslyn |
| 100 N. Potomac Street (MD 60) | C | |
| 18 E. Franklin Street | C | |
| 101 N. Potomac Street | C | |
| 16-18 W. Franklin Street | C | WA-HAG-008 -- Knights of Pythias Castle |
| 20-22 W. Franklin Street | C | |
| 24-26 W. Franklin Street | C | |
| 28-30 W. Franklin Street | C | |
| 34-36 W. Franklin Street | C | |
| 64-66 W. Franklin Street | C | |
| 32-48 W. Washington Street | C | WA-HAG-107 -- Routzahn Building, Balwin House, and Warehouse (Arcade Building & Academy Theater) |
| 23 W. Franklin Street | C | WA-HAG-223 -- Pioneer Hook & Ladder Company |
| 13-15 W. Franklin Street | C | |
| 7-11 W. Franklin Street | C | WA-HAG-152 -- Albert Building |
| 17-19 W. Franklin Street | C | |
| 47-51 N. Potomac Street (MD 60) | C | WA-HAG-031 -- Max Simon Building |
| 51-53 N. Potomac Street (MD 60) | C | |
| 41-45 N. Potomac Street (MD 60) | C | |
| 35-39 N. Potomac Street (MD 60) | C | |
| 21-25 W. Washington Street | C | |
| 27 W. Washington Street | C | WA-HAG-106 -- Kohler Building |
| 36-40 N. Potomac Street (MD 60) | C | |
| 11-15 N. Potomac Street (MD 60) | C | |
| 5-9 N. Potomac Street (MD 60) | C | |
| 26-30 W. Washington Street | C | WA-HAG-105 -- Hays Building |
| 25-27 N. Potomac Street (MD 60) | C | |
| 4-6 W. Washington Street | C | |
| 20 Public Square (also 2-4 W. Washington Street) | C | WA-HAG-150 -- Fleisher Building (Saum-Wicklein Building) |
| 1-3 N. Potomac Street (MD 60) | C | WA-HAG-016 -- D. Ramaciotti Building (Rocky's New York Pizza) |
| 17-19 N. Potomac Street (MD 60) | NC | |
| 18-20 W. Washington Street | NC | WA-HAG-103 -- Eyerly Building |
| 14-16 W. Washington Street | NC | |
| 44-46 N. Potomac Street (MD 60) | NC | |
| 33-39 W. Washington Street | NC | WA-HAG-108 -- Washington County Office Building |
| 29-33 N. Potomac Street (MD 60) | NC | |
| 68-70 W. Franklin Street | NC | |
| 100 W. Franklin Street | NC | |
| 50-56 W. Washington Street | NC | WA-HAG-111 -- McCrory Building |
| 16 N. Potomac Street (MD 60) | NC | |
| 24-28 N. Potomac Street (MD 60) | NC | WA-HAG-023 -- site |
| 32-34 N. Potomac Street (MD 60) | NC | |
| 33 Summit Avenue | NC | |
| 14 E. Washington Street | NC | |
| 61-65 W. Washington Street | NC | WA-HAG-114 -- Farmers & Merchants Bank Annex |
| 75-83 W. Washington Street | NC | WA-HAG-117 -- Hagerstown Trust Company |
| 24 Summit Avenue | NC | |
| 44 Summit Avenue | NC | |
| 40 Summit Avenue | NC | |
| 1-4 Public Square | NC | WA-HAG-088 -- Peoples Drug Store |
| 15 W. Washington Street | NC | |
| 17-19 W. Washington Street | NC | WA-HAG-102 -- Glick's Shoe Store Building, site |
| 218 W. Washington Street | | WA-HAG-233 -- St. Mary's Roman Catholic Church |
| 31-35 S. Potomac Street (MD 65) | | WA-HAG-068 -- First Hose Fire Company Building |