| 1 N. Artizan Street | C | WA-WIL-260 -- Brick House |
| 5 N. Artizan Street | C | WA-WIL-262 -- Brick House |
| 7 N. Artizan Street | C | WA-WIL-263 -- Stone House |
| 7 S. Artizan Street | C | WA-WIL-259 -- Log House |
| 9 S. Artizan Street | C | WA-WIL-258 -- Frame House |
| 10 N. Artizan Street | C | WA-WIL-283 -- Frame House |
| 11 S. Artizan Street | C | WA-WIL-257 -- Frame House |
| 12-14 N. Artizan Street | C | WA-WIL-282 -- Double House |
| 13 S. Artizan Street | C | WA-WIL-256 -- Frame House |
| 15 S. Artizan Street | C | WA-WIL-255 -- Log House |
| 16 S. Artizan Street | C | WA-WIL-285 -- Small House |
| 18 S. Artizan Street | C | WA-WIL-286 -- Log House |
| 19-21 S. Artizan Street | C | WA-WIL-254 -- Frame House |
| 20 S. Artizan Street | C | WA-WIL-287 -- Aluminum Sided House |
| 20 N. Artizan Street | C | WA-WIL-281 -- Frame House |
| 22 S. Artizan Street | C | WA-WIL-288 -- Star of Hope Chapel |
| 23 S. Artizan Street | C | WA-WIL-253 -- Log House |
| 25-27 S. Artizan Street | C | WA-WIL-252 -- Frame House |
| 26 S. Artizan Street | C | WA-WIL-289 -- Log House |
| 29 S. Artizan Street | C | WA-WIL-251 -- Log House |
| 101 S. Artizan Street | C | WA-WIL-250 -- Log House |
| 105 S. Artizan Street | C | WA-WIL-249 -- Brick House |
| 106 S. Artizan Street | C | WA-WIL-292 -- Log House |
| 107 N. Artizan Street | C | WA-WIL-264 -- Two Part House |
| 108 S. Artizan Street | C | WA-WIL-293 -- Small Frame House |
| 109 N. Artizan Street | C | WA-WIL-265 -- Two Part House |
| 109 S. Artizan Street | C | |
| 110 S. Artizan Street | C | WA-WIL-294 -- Log House |
| 111 S. Artizan Street | C | WA-WIL-248 -- Frame House |
| 111-113 N. Artizan Street | C | WA-WIL-266 -- Frame House |
| 112 S. Artizan Street | C | WA-WIL-295 -- Log House |
| 115 S. Artizan Street | C | WA-WIL-247 -- Frame House |
| 116 S. Artizan Street | C | WA-WIL-296 -- Frame House |
| 116 N. Artizan Street | C | WA-WIL-280 -- Brick House |
| 117 S. Artizan Street | C | WA-WIL-246 -- Frame House |
| 117 N. Artizan Street | C | WA-WIL-267 -- Frame House |
| 118-120 N. Artizan Street | C | WA-WIL-279 -- Brick House |
| 119 S. Artizan Street | C | WA-WIL-245 -- Frame House |
| 120 S. Artizan Street | C | WA-WIL-297 -- Log House |
| 121 S. Artizan Street | C | WA-WIL-244 -- Frame House |
| 122-124 N. Artizan Street | C | WA-WIL-278 -- Brick House |
| 123 S. Artizan Street | C | WA-WIL-243 -- T-shaped House |
| 123 N. Artizan Street | C | WA-WIL-268 -- Log House |
| 125 S. Artizan Street | C | |
| 127 S. Artizan Street | C | |
| 128 N. Artizan Street | C | WA-WIL-277 -- Frame House |
| 129 S. Artizan Street | C | |
| 130 N. Artizan Street | C | WA-WIL-276 -- Frame House |
| 130 S. Artizan Street | C | WA-WIL-298 -- Frame House |
| 133 N. Artizan Street | C | |
| 135 N. Artizan Street | C | |
| 136 N. Artizan Street | C | WA-WIL-275 -- Brick House |
| 137 N. Artizan Street | C | |
| 139 N. Artizan Street | C | |
| 140 N. Artizan Street | C | WA-WIL-274 -- Brick House |
| 143 N. Artizan Street | C | |
| 145 N. Artizan Street | C | WA-WIL-269 -- Brick House |
| 147 N. Artizan Street | C | WA-WIL-270 -- Frame House |
| 150 N. Artizan Street | C | WA-WIL-273 -- Frame House |
| 154 N. Artizan Street | C | WA-WIL-272 -- Brook Grove Foundation (Williamsport Nursing Home) |
| 200 S. Artizan Street | C | |
| 202 S. Artizan Street | C | |
| 203 S. Artizan Street | C | WA-WIL-242 -- Four Bay Gable House |
| 204 S. Artizan Street | C | |
| 205 S. Artizan Street | C | WA-WIL-241 -- Brick House |
| 207 S. Artizan Street | C | WA-WIL-240 -- T-shaped House |
| 208 S. Artizan Street | C | |
| 211 S. Artizan Street | C | |
| 212 S. Artizan Street | C | |
| 213 S. Artizan Street | C | |
| 214 S. Artizan Street | C | |
| 215 S. Artizan Street | C | |
| E. Church Street | C | WA-WIL-198 -- Frame House in Alley |
| E. Church Street | C | WA-WIL-225 -- Williamsport Elementary Annex |
| 13-15 W. Church Street | C | WA-WIL-110 -- Frame House |
| 14 W. Church Street | C | WA-WIL-229 -- LeFevre's Broom Factory |
| 15 E. Church Street | C | WA-WIL-112 -- Brick House |
| 16 E. Church Street | C | WA-WIL-228 -- Church Calvary Temple, Inc. |
| 17 E. Church Street | C | WA-WIL-114 -- Frame House |
| 18 W. Church Street | C | WA-WIL-230 -- Log House |
| 18-20 E. Church Street | C | WA-WIL-227 -- Church Calvary Temple, Inc. |
| 19 W. Church Street | C | WA-WIL-109 -- Log House |
| 21 W. Church Street | C | WA-WIL-108 -- Brick House |
| 22 E. Church Street | C | WA-WIL-226 -- Brick House |
| 22 W. Church Street | C | WA-WIL-231 -- Log or Frame House |
| 23 W. Church Street | C | WA-WIL-107 -- Frame House |
| 25 W. Church Street | C | WA-WIL-106 -- Frame House |
| 25 E. Church Street | C | WA-WIL-113 -- Williamsport United Methodist Church |
| 26 W. Church Street | C | WA-WIL-232 -- Log House |
| 28 W. Church Street | C | WA-WIL-233 -- Log House |
| 29 E. Church Street | C | WA-WIL-115 -- Frame House |
| 29 W. Church Street | C | WA-WIL-105 -- Log House |
| 30 W. Church Street | C | WA-WIL-234 -- Frame House |
| 31 E. Church Street | C | WA-WIL-116 -- Frame House |
| 31 W. Church Street | C | WA-WIL-104 -- Brick House |
| 32 W. Church Street | C | WA-WIL-235 -- Balloon Frame House |
| 33 E. Church Street | C | WA-WIL-117 -- German Sided House |
| 33 W. Church Street | C | WA-WIL-103 -- Log House |
| 34 W. Church Street | C | WA-WIL-236 -- Balloon Frame House |
| 35 W. Church Street | C | WA-WIL-102 -- Aluminum Sided House |
| 36 E. Church Street | C | WA-WIL-224 -- Frame House |
| 37 W. Church Street | C | WA-WIL-101 -- Log House |
| 38 W. Church Street | C | WA-WIL-238 -- Frame House |
| 39 E. Church Street | C | WA-WIL-118 -- Frame or Log House |
| 43 E. Church Street | C | WA-WIL-119 -- Log House |
| 48 E. Church Street | C | WA-WIL-291 -- Log House |
| 49 E. Church Street | C | WA-WIL-290 -- Frame House |
| 102 E. Church Street | C | |
| Commerce Street | C | WA-WIL-381 -- Doubleday Hill and Riverview Cemetery |
| Commerce Street & Potomac Street (US 11) | C | WA-WIL-190 -- Service Station |
| 17-19 N. Conococheague Street | C | WA-WIL-151 -- Brick Shop/Residence |
| 1 N. Conococheague Street (MD 68) | C | WA-WIL-145 -- Aaron Lodge #33 |
| 2 N. Conococheague Street (MD 68) | C | WA-WIL-018 -- Williamsport City Hall |
| 2, 6, & 8 S. Conococheague Street (MD 68) | C | WA-WIL-017 -- Shirley's Card and Gift Shop |
| 3-5 N. Conococheague Street (MD 68) | C | WA-WIL-146 -- Commercial/Residential Building |
| 7-9 N. Conococheague Street (MD 68) | C | WA-WIL-147 -- Brick Building |
| 11 N. Conococheague Street (MD 68) | C | WA-WIL-148 -- Three Bay House |
| 11-13 S. Conococheague Street (MD 68) | C | WA-WIL-144 -- Frame House |
| 12 N. Conococheague Street (MD 68) | C | WA-WIL-020 -- Mediary Masonic Temple |
| 13 N. Conococheague Street (MD 68) | C | WA-WIL-149 -- Brick House |
| 15 N. Conococheague Street (MD 68) | C | WA-WIL-150 -- Townhouse |
| 15 S. Conococheague Street (MD 68) | C | WA-WIL-143 -- Brick House |
| 16 N. Conococheague Street (MD 68) | C | WA-WIL-022 -- Byers Self Service Market |
| 18 S. Conococheague Street (MD 68) | C | WA-WIL-014 -- Brick House |
| 21 S. Conococheague Street (MD 68) | C | WA-WIL-141 -- Frame House |
| 21-23 N. Conococheague Street (MD 68) | C | WA-WIL-152 -- Brick Shop/Residence |
| 22 S. Conococheague Street (MD 68) | C | WA-WIL-013 -- Brick House |
| 22 N. Conococheague Street (MD 68) | C | WA-WIL-023 -- Second Empire Style House |
| 23 S. Conococheague Street (MD 68) | C | WA-WIL-140 -- Log House |
| 25 S. Conococheague Street (MD 68) | C | WA-WIL-139 -- Frame House |
| 25 N. Conococheague Street (MD 68) | C | WA-WIL-153 -- Brick House |
| 27 S. Conococheague Street (MD 68) | C | WA-WIL-138 -- Frame House |
| 28 N. Conococheague Street (MD 68) | C | WA-WIL-024 -- Commercial Building |
| 28 S. Conococheague Street (MD 68) | C | WA-WIL-011 -- German Sided House |
| 29 S. Conococheague Street (MD 68) | C | WA-WIL-137 -- Frame House |
| 30 S. Conococheague Street (MD 68) | C | WA-WIL-010 -- Brick House |
| 30-32 N. Conococheague Street (MD 68) | C | WA-WIL-025 -- Nelson F. Deal Library |
| 31 N. Conococheague Street (MD 68) | C | WA-WIL-154 -- Brick Commercial/Residential Building |
| 35 N. Conococheague Street (MD 68) | C | WA-WIL-155 -- Brick Commercial/Residential Building |
| 35 S. Conococheague Street (MD 68) | C | WA-WIL-135 -- Brick House |
| 36-38 N. Conococheague Street (MD 68) | C | WA-WIL-026 -- Italianate Commercial/Residential Building |
| 37-39 N. Conococheague Street (MD 68) | C | WA-WIL-156 -- Brick House |
| 39 N. Conococheague Street (MD 68) | C | WA-WIL-157 -- Brick Commercial/Residential Building |
| 40-42 N. Conococheague Street (MD 68) | C | WA-WIL-027 -- Italianate Commercial/Residential Building |
| 102 N. Conococheague Street (MD 68) | C | WA-WIL-028 -- Wolfe's Store |
| 106 S. Conococheague Street (MD 68) | C | WA-WIL-008 -- Log House |
| 110 S. Conococheague Street (MD 68) | C | |
| 112 S. Conococheague Street (MD 68) | C | WA-WIL-007 -- Frame House |
| 114 S. Conococheague Street (MD 68) | C | WA-WIL-006 -- Log House |
| 114-122 N. Conococheague Street (MD 68) | C | WA-WIL-030 -- Rowhouses |
| 116 S. Conococheague Street (MD 68) | C | WA-WIL-005 -- German Sided House |
| 120 S. Conococheague Street (MD 68) | C | WA-WIL-004 -- Aluminum Sided House |
| 122 S. Conococheague Street (MD 68) | C | WA-WIL-003 -- Townhouse |
| 124 S. Conococheague Street (MD 68) | C | WA-WIL-002 -- Townhouse |
| 124-126 N. Conococheague Street (MD 68) | C | WA-WIL-031 -- Double House |
| 128-130 N. Conococheague Street (MD 68) | C | WA-WIL-032 -- Double House |
| 141 N. Conococheague Street (MD 68) | C | WA-WIL-158 -- Brick House |
| 145-147 N. Conococheague Street (MD 68) | C | WA-WIL-159 -- Brick and Frame Rowhouse |
| 149 N. Conococheague Street (MD 68) | C | WA-WIL-160 -- Frame House |
| 151 S. Conococheague Street (MD 68) | C | |
| 153 N. Conococheague Street (MD 68) | C | WA-WIL-161 -- Stone House |
| 155 N. Conococheague Street (MD 68) | C | WA-WIL-162 -- Frame Double House |
| 157 N. Conococheague Street (MD 68) | C | WA-WIL-163 -- Frame Double House |
| 201 S. Conococheague Street (MD 68) | C | WA-WIL-133 -- German Sided House |
| 209 S. Conococheague Street (MD 68) | C | WA-WIL-131 -- Frame House |
| 211 S. Conococheague Street (MD 68) | C | WA-WIL-130 -- Frame House |
| S. Conococheague Street (MD 68) & S. Church Street | C | WA-WIL-111 -- Frame House |
| 13 W. Frederick Street | C | WA-WIL-125 -- Log House |
| 13 E. Frederick Street | C | WA-WIL-126 -- Frame House |
| 14 E. Frederick Street | C | |
| 16 E. Frederick Street | C | WA-WIL-305 -- Frame House |
| 19 W. Frederick Street | C | WA-WIL-124 -- Frame House |
| 21 E. Frederick Street | C | WA-WIL-127 -- Frame House |
| 23-25 W. Frederick Street | C | WA-WIL-123 -- Frame House |
| 24 E. Frederick Street | C | WA-WIL-383 -- Frame House |
| 26 E. Frederick Street | C | WA-WIL-304 -- Frame House |
| 29 W. Frederick Street | C | WA-WIL-122 -- Log House |
| 30 E. Frederick Street | C | WA-WIL-302 -- Frame House |
| 31 W. Frederick Street | C | WA-WIL-121 -- Log House |
| 32 E. Frederick Street | C | WA-WIL-301 -- Frame House |
| 34 E. Frederick Street | C | WA-WIL-300 -- Aluminum Sided House |
| 35 W. Frederick Street | C | WA-WIL-120 -- Log House |
| 38 E. Frederick Street | C | WA-WIL-299 -- Brick House |
| 203 S. Main Street | C | WA-WIL-309 -- Log House |
| 207-209 S. Main Street | C | WA-WIL-308 -- Frame House (duplex) |
| 211 S. Main Street | C | WA-WIL-307 -- Frame House (former warehouse) |
| 215 S. Main Street | C | WA-WIL-306 -- Brick House (Isaac Gruber Lumberyard Office) |
| 104 E. Potomac Street | C | WA-WIL-384 -- Williamsport Public Library |
| 215 E. Potomac Street | C | WA-WIL-068 -- Brick House |
| 231 E. Potomac Street | C | |
| 233 E. Potomac Street | C | |
| 235 E. Potomac Street | C | |
| 237 E. Potomac Street | C | |
| 1 E. Potomac Street (US 11) | C | WA-WIL-052 -- Commercial Building & Residence |
| 5-7 E. Potomac Street (US 11) | C | WA-WIL-053 -- Frame House |
| 9-11 E. Potomac Street (US 11) | C | WA-WIL-054 -- Frame House |
| 11 W. Potomac Street (US 11) | C | WA-WIL-051 -- Second Empire Style House |
| 13 W. Potomac Street (US 11) | C | WA-WIL-050 -- Brick House |
| 14 W. Potomac Street (US 11) | C | WA-WIL-171 -- Washington County National Savings Bank |
| 15 W. Potomac Street (US 11) | C | WA-WIL-049 -- Log or Frame House |
| 16 E. Potomac Street (US 11) | C | WA-WIL-170 -- Brick Commercial/Residential addition to WA-WIL-157 |
| 17 W. Potomac Street (US 11) | C | WA-WIL-048 -- Commercial/Residential Building |
| 19 W. Potomac Street (US 11) | C | |
| 20 W. Potomac Street (US 11) | C | WA-WIL-172 -- Brick House |
| 21 W. Potomac Street (US 11) | C | WA-WIL-047 -- Frame House |
| 22 W. Potomac Street (US 11) | C | WA-WIL-173 -- Brick House |
| 23-25 W. Potomac Street (US 11) | C | WA-WIL-046 -- Frame House |
| 25 E. Potomac Street (US 11) | C | WA-WIL-057 -- Brick House |
| 26 E. Potomac Street (US 11) | C | WA-WIL-168 -- Brick House |
| 26 W. Potomac Street (US 11) | C | WA-WIL-175 -- Brick House |
| 27 E. Potomac Street (US 11) | C | WA-WIL-058 -- Brick House |
| 28 W. Potomac Street (US 11) | C | WA-WIL-176 -- Brick House |
| 28 E. Potomac Street (US 11) | C | WA-WIL-167 -- St. Augustine's Catholic Church |
| 29 E. Potomac Street (US 11) | C | WA-WIL-059 -- Brick House |
| 30 W. Potomac Street (US 11) | C | WA-WIL-177 -- Brick House |
| 30 E. Potomac Street (US 11) | C | WA-WIL-166 -- Brick House |
| 32 E. Potomac Street (US 11) | C | WA-WIL-165 -- Log House |
| 32 W. Potomac Street (US 11) | C | WA-WIL-178 -- Log House |
| 33 W. Potomac Street (US 11) | C | WA-WIL-045 -- Frame House |
| 35 W. Potomac Street (US 11) | C | WA-WIL-044 -- Zion Evangelical Lutheran Church Rectory |
| 36 W. Potomac Street (US 11) | C | WA-WIL-179 -- Brick House |
| 37 W. Potomac Street (US 11) | C | WA-WIL-043 -- Zion Evangelical Lutheran Church |
| 37 E. Potomac Street (US 11) | C | WA-WIL-061 -- Stone House |
| 38 E. Potomac Street (US 11) | C | WA-WIL-164 -- Frame House (Brick-Clad Frame Commercial Building) |
| 38-40 W. Potomac Street (US 11) | C | WA-WIL-180 -- Two Part Log and Frame House |
| 39 E. Potomac Street (US 11) | C | WA-WIL-062 -- Brick House |
| 41 E. Potomac Street (US 11) | C | WA-WIL-063 -- Brick House |
| 42-44 W. Potomac Street (US 11) | C | WA-WIL-181 -- Log House |
| 43 E. Potomac Street (US 11) | C | WA-WIL-064 -- Brick House |
| 101 E. Potomac Street (US 11) | C | WA-WIL-065 -- Brick House |
| 103 W. Potomac Street (US 11) | C | WA-WIL-042 -- Log House |
| 109 W. Potomac Street (US 11) | C | WA-WIL-041 -- Brick House |
| 110-112 W. Potomac Street (US 11) | C | WA-WIL-182 -- Log House |
| 111-113 W. Potomac Street (US 11) | C | WA-WIL-040 -- Frame House |
| 118 W. Potomac Street (US 11) | C | WA-WIL-184 -- Frame House |
| 119 W. Potomac Street (US 11) | C | WA-WIL-039 -- Log House |
| 121 W. Potomac Street (US 11) | C | WA-WIL-038 -- Brick House |
| 123 W. Potomac Street (US 11) | C | WA-WIL-037 -- Log House |
| 123 E. Potomac Street (US 11) | C | WA-WIL-067 -- Frame House |
| 124-126 W. Potomac Street (US 11) | C | WA-WIL-186 -- Log House |
| 125 E. Potomac Street (US 11) | C | |
| 127 E. Potomac Street (US 11) | C | |
| 128-130 W. Potomac Street (US 11) | C | WA-WIL-187 -- Log House |
| 129 E. Potomac Street (US 11) | C | |
| 131 E. Potomac Street (US 11) | C | |
| 134 W. Potomac Street (US 11) | C | WA-WIL-188 -- Log House |
| 135-137 W. Potomac Street (US 11) | C | WA-WIL-036 -- Frame House |
| 139 W. Potomac Street (US 11) | C | WA-WIL-035 -- Log House |
| 142 W. Potomac Street (US 11) | C | WA-WIL-189 -- G.A. Miller Lumber Company, Inc. |
| 5-7-9-11 E. Salisbury Street | C | |
| 10 W. Salisbury Street | C | WA-WIL-210 -- Frame Addition to WA-WIL-017 |
| 14 E. Salisbury Street | C | WA-WIL-209 -- Tan Brick House |
| 15 W. Salisbury Street | C | WA-WIL-086 -- Log House |
| 15 E. Salisbury Street | C | WA-WIL-088 -- American Legion Building |
| 16 E. Salisbury Street | C | WA-WIL-208 -- Brick House |
| 17 W. Salisbury Street | C | WA-WIL-087 -- Log House |
| 19 E. Salisbury Street | C | WA-WIL-089 -- Log House |
| 19-21 W. Salisbury Street | C | WA-WIL-085 -- Log House |
| 20 E. Salisbury Street | C | WA-WIL-206 -- Brick House |
| 21 E. Salisbury Street | C | WA-WIL-090 -- Frame House |
| 22 W. Salisbury Street | C | WA-WIL-212 -- Brick House |
| 23 E. Salisbury Street | C | WA-WIL-091 -- Log House |
| 23-25 W. Salisbury Street | C | WA-WIL-084 -- Frame House |
| 24 E. Salisbury Street | C | WA-WIL-205 -- House |
| 25 E. Salisbury Street | C | WA-WIL-092 -- Log House |
| 26 E. Salisbury Street | C | WA-WIL-204 -- Brick House |
| 27 E. Salisbury Street | C | WA-WIL-093 -- Log House |
| 27 W. Salisbury Street | C | WA-WIL-083 -- Log House |
| 29 W. Salisbury Street | C | WA-WIL-082 -- Brick House |
| 29 E. Salisbury Street | C | WA-WIL-094 -- Log House |
| 30 E. Salisbury Street | C | WA-WIL-203 -- Evangelical United Brethren Church |
| 31 W. Salisbury Street | C | WA-WIL-081 -- Frame House |
| 32 W. Salisbury Street | C | WA-WIL-213 -- Log House |
| 33 W. Salisbury Street | C | WA-WIL-080 -- Log House |
| 34 W. Salisbury Street | C | WA-WIL-214 -- Brick House |
| 34 E. Salisbury Street | C | WA-WIL-202 -- Brick House |
| 35 W. Salisbury Street | C | WA-WIL-079 -- Frame House |
| 38 W. Salisbury Street | C | WA-WIL-216 -- Brick House |
| 40 W. Salisbury Street | C | WA-WIL-217 -- Two Part House |
| 41 W. Salisbury Street | C | WA-WIL-076 -- Frame House |
| 41 E. Salisbury Street | C | WA-WIL-099 -- Brick House |
| 43 W. Salisbury Street | C | |
| 44-46 W. Salisbury Street | C | WA-WIL-218 -- Two Part House |
| 45-47 W. Salisbury Street | C | WA-WIL-075 -- Brick House |
| 47 E. Salisbury Street | C | WA-WIL-100 -- Frame House |
| 48 W. Salisbury Street | C | WA-WIL-219 -- Log House |
| 48 E. Salisbury Street | C | WA-WIL-201 -- Brick House |
| 102 E. Salisbury Street | C | WA-WIL-200 -- Log House |
| 106 E. Salisbury Street | C | WA-WIL-199 -- Aluminum Sided House |
| 111 W. Salisbury Street | C | WA-WIL-074 -- Stockslager's Grocery |
| 112 W. Salisbury Street | C | WA-WIL-220 -- Log House |
| 113 W. Salisbury Street | C | WA-WIL-073 -- Frame House |
| 114 W. Salisbury Street | C | WA-WIL-221 -- Frame House |
| 118 W. Salisbury Street | C | WA-WIL-222 -- Frame House |
| 124 W. Salisbury Street | C | WA-WIL-223 -- Frame House |
| 129 W. Salisbury Street | C | WA-WIL-072 -- Frame House |
| Springfield Lane | C | WA-I-026 -- Part of Springfield Farm |
| Springfield Lane | C | WA-I-025 -- Still House at Springfield Farm |
| Springfield Lane | C | WA-I-024 -- Springfield Farm |
| 2 S. Vermont Street | C | WA-WIL-337 -- Log House |
| 3 S. Vermont Street | C | WA-WIL-329 -- Stone House |
| 5-7 S. Vermont Street | C | WA-WIL-328 -- Log House |
| 6 S. Vermont Street | C | WA-WIL-336 -- Brick House |
| 8 S. Vermont Street | C | WA-WIL-335 -- Log House |
| 9 S. Vermont Street | C | WA-WIL-327 -- Aluminum Sided House |
| 10 N. Vermont Street | C | WA-WIL-193 -- Log House |
| 11 S. Vermont Street | C | WA-WIL-326 -- Log House |
| 11 N. Vermont Street | C | WA-WIL-338 -- Log House |
| 13 N. Vermont Street | C | WA-WIL-339 -- Frame House |
| 13 S. Vermont Street | C | WA-WIL-325 -- Log House |
| 14 N. Vermont Street | C | WA-WIL-195 -- Log House |
| 15 S. Vermont Street | C | WA-WIL-324 -- Frame House |
| 16 S. Vermont Street | C | WA-WIL-333 -- Frame House |
| 17 N. Vermont Street | C | WA-WIL-340 -- Frame or Log House |
| 17 S. Vermont Street | C | WA-WIL-323 -- Log House |
| 18 S. Vermont Street | C | WA-WIL-332 -- Aluminum Sided House |
| 19 N. Vermont Street | C | WA-WIL-191 -- Log House |
| 20 S. Vermont Street | C | WA-WIL-331 -- Log House |
| 21 N. Vermont Street | C | WA-WIL-192 -- Frame House |
| 22-24 N. Vermont Street | C | WA-WIL-196 -- Frame House |
| 25 S. Vermont Street | C | WA-WIL-322 -- Log House |
| 27 S. Vermont Street | C | WA-WIL-321 -- Frame House |
| 28 S. Vermont Street | C | WA-WIL-330 -- Frame House |
| 28-30 N. Vermont Street | C | WA-WIL-197 -- Brick House |
| 29 S. Vermont Street | C | WA-WIL-320 -- Frame House |
| 31 S. Vermont Street | C | WA-WIL-319 -- Aluminum Sided House |
| 107 S. Vermont Street | C | WA-WIL-318 -- Frame Duplex |
| 109 S. Vermont Street | C | WA-WIL-317 -- Frame House |
| 113 S. Vermont Street | C | WA-WIL-316 -- Log House |
| 123 S. Vermont Street | C | |
| 125 S. Vermont Street | C | WA-WIL-315 -- Frame House |
| 126 S. Vermont Street | C | WA-WIL-312 -- Frame House |
| 127 S. Vermont Street | C | WA-WIL-314 -- Frame House |
| 130 S. Vermont Street | C | WA-WIL-311 -- Log House |
| 132 S. Vermont Street | C | WA-WIL-310 -- Log House |
| 101-103 S. Vermont Street & W. Church Street | C | WA-WIL-239 -- Frame House |
| West side of alley behind N. Conococheague Street | C | |
| | NC | Williamsport Post Office |
| | NC | Williamsport Ambulance Co. |
| Alley on the south side of E. Potomac Street | NC | |
| N. Artizan Street | NC | |
| 8 N. Artizan Street | NC | |
| 14 S. Artizan Street | NC | |
| 113 S. Artizan Street | NC | |
| 122 S. Artizan Street | NC | |
| 131 N. Artizan Street | NC | |
| 141 N. Artizan Street | NC | |
| 144 N. Artizan Street | NC | |
| 210 S. Artizan Street | NC | |
| 27 W. Church Street | NC | |
| 12 S. Conococheague Street | NC | |
| 20 S. Conococheague Street | NC | |
| 110 N. Conococheague Street | NC | |
| 117 N. Conococheague Street | NC | |
| 121? N. Conococheague Street | NC | |
| 147 S. Conococheague Street | NC | |
| 17 S. Conococheague Street (MD 68) | NC | WA-WIL-142 -- Brick House |
| 111-115 S. Conococheague Street (MD 68) | NC | |
| 119 N. Conococheague Street (MD 68) | NC | WA-WIL-346 -- King Memorial Post 163 |
| east of alley behind east side of S. Artizan Street, between E. Church and E. Salisbury Streets | NC | Park View Knoll |
| 15 W. Frederick Street | NC | |
| 21 W. Frederick Street | NC | |
| 37 W. Frederick Street | NC | |
| 106-108 W. Potomac Street | NC | |
| 133 W. Potomac Street | NC | |
| SE corner of Conococheague and Salisbury Streets | NC | |
| SE corner of N. Artizan Street and E. Potomac Street | NC | |
| 12 S. Vermont Street | NC | WA-WIL-334 -- Log House, site |
| 18 N. Vermont Street | NC | |
| 23 N. Vermont Street | NC | |
| 23? S. Vermont Street | NC | |
| 115 S. Vermont Street | NC | |
| 124 S. Vermont Street | NC | |
| West side of N. Conococheague Street | NC | |
| West side of N. Conococheague Street, near east bank of Conococheague Creek | NC | |
| 3 N. Artizan Street | C/NC | WA-WIL-261 -- Aluminum Sided House |
| 10-12 S. Artizan Street | C/NC | WA-WIL-284 -- Frame or Log House |
| 153 N. Artizan Street | C/NC | WA-WIL-271 -- Brick House |
| 36 W. Church Street | C/NC | WA-WIL-237 -- Frame House |
| 10 S. Conococheague Street (MD 68) | C/NC | WA-WIL-016 -- Brick House |
| 10 N. Conococheague Street (MD 68) | C/NC | WA-WIL-019 -- Brick House |
| 14 N. Conococheague Street (MD 68) | C/NC | WA-WIL-021 -- Brick House |
| 14 S. Conococheague Street (MD 68) | C/NC | WA-WIL-015 -- Brick House |
| 26 S. Conococheague Street (MD 68) | C/NC | WA-WIL-012 -- Log House |
| 31-33 S. Conococheague Street (MD 68) | C/NC | WA-WIL-136 -- Double House |
| 102-104 S. Conococheague Street (MD 68) | C/NC | WA-WIL-009 -- Frame House |
| 107 S. Conococheague Street (MD 68) | C/NC | WA-WIL-134 -- Brick House |
| 112 N. Conococheague Street (MD 68) | C/NC | WA-WIL-029 -- Italianate House |
| 126-128 S. Conococheague Street (MD 68) | C/NC | WA-WIL-001 -- Multiple Dwelling |
| 207 S. Conococheague Street (MD 68) | C/NC | WA-WIL-132 -- Frame House |
| 23 E. Frederick Street | C/NC | WA-WIL-128 -- Frame House |
| 27-29 E. Frederick Street | C/NC | WA-WIL-129 -- Frame House |
| 28 E. Frederick Street | C/NC | WA-WIL-303 -- Frame House |
| 13 E. Potomac Street (US 11) | C/NC | WA-WIL-055 -- Stuccoed House |
| 20 E. Potomac Street (US 11) | C/NC | WA-WIL-169 -- Brick House |
| 21 E. Potomac Street (US 11) | C/NC | WA-WIL-056 -- Frame House |
| 24 W. Potomac Street (US 11) | C/NC | WA-WIL-174 -- Stone House |
| 31-33 E. Potomac Street (US 11) | C/NC | WA-WIL-060 -- Stone House |
| 104 E. Potomac Street (US 11) | C/NC | WA-WIL-071 -- William D. Byron II Memorial Park Community Building |
| 114-116 W. Potomac Street (US 11) | C/NC | WA-WIL-183 -- Frame Double House |
| 119 E. Potomac Street (US 11) | C/NC | WA-WIL-066 -- Neo-Colonial House |
| 122 W. Potomac Street (US 11) | C/NC | WA-WIL-185 -- Brick House |
| 14-20 W. Salisbury Street | C/NC | WA-WIL-211 -- Brick Tenement House |
| 18 E. Salisbury Street | C/NC | WA-WIL-207 -- Rehobeth United Methodist Church |
| 31 E. Salisbury Street | C/NC | WA-WIL-095 -- Log House |
| 33 E. Salisbury Street | C/NC | WA-WIL-096 -- Frame House |
| 35 E. Salisbury Street | C/NC | WA-WIL-097 -- Brick House |
| 36 W. Salisbury Street | C/NC | WA-WIL-215 -- Log House |
| 37 W. Salisbury Street | C/NC | WA-WIL-078 -- Log House |
| 37-39 E. Salisbury Street | C/NC | WA-WIL-098 -- Frame House |
| 39 W. Salisbury Street | C/NC | WA-WIL-077 -- Log House |
| 12 N. Vermont Street | C/NC | WA-WIL-194 -- Brick House |
| 129 S. Vermont Street | C/NC | WA-WIL-313 -- Frame House |
| Over C&O Canal | | Railroad Lift-Bridge |
| W. Potomac Street | | WA-WIL-033 -- Cushwa Coal Building |
| W. Potomac Street | | WA-WIL-034 -- C&O Canal Park Building |
| E. Salisbury Street | | WA-WIL-380 -- One Story Log House |
| W. Salisbury Street over C&O Canal | | WA-WIL-341 -- Salisbury Street Bridge |