Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Laun Center | Building | 240 | Sheboygan | 43 50 30 N | 087 53 03 W |
| Laura Aldrich Neese Performing Arts Center | Building | 238 | Rock | 42 30 06 N | 089 01 53 W |
| Laux Hall | Building | 204 | La Crosse | 43 49 06 N | 091 13 42 W |
| Laverty-Martindale House | Building | 206 | La Crosse | 43 48 33 N | 091 14 33 W |
| Lawrence Townhall | Building | 378 | Rusk | 45 26 11 N | 090 51 24 W |
| Learning Resources Center | Building | 334 | Portage | 44 31 36 N | 089 34 14 W |
| Lee Hall | Building | 259 | Walworth | 42 50 30 N | 088 44 53 W |
| Legal Research Center | Building | 196 | Milwaukee | 43 02 17 N | 087 55 34 W |
| Legion Memorial Library | Building | 385 | Ashland | 46 19 37 N | 090 39 37 W |
| Leigh Yawkey Woodson Art Museum | Building | 418 | Marathon | 44 57 46 N | 089 36 45 W |
| Lentz Hall | Building | 177 | Kenosha | 42 37 26 N | 087 49 11 W |
| Leslie Johnson Theatre | Building | 205 | Sheboygan | 43 44 07 N | 087 44 39 W |
| Lincoln County Courthouse | Building | 387 | Lincoln | 45 10 52 N | 089 41 00 W |
| Lincoln County Jail | Building | 389 | Lincoln | 45 10 55 N | 089 41 04 W |
| Lincoln Townhall | Building | 296 | Burnett | 45 53 32 N | 092 27 08 W |
| Lincoln-Tallman Museum | Building | 251 | Rock | 42 41 11 N | 089 01 53 W |
| Linfield Hall | Building | 277 | Dodge | 43 27 31 N | 088 49 43 W |
| Lions Hall | Building | 226 | Waukesha | 43 06 42 N | 088 04 12 W |
| Little Log Cabin | Building | 268 | Walworth | 42 50 15 N | 088 44 38 W |
| Little Rice Townhall | Building | 454 | Oneida | 45 35 03 N | 089 49 03 W |
| Log Museum | Building | 383 | Washburn | 45 39 25 N | 091 33 19 W |
| Logan Museum | Building | 239 | Rock | 42 30 07 N | 089 01 49 W |
| Long Lake Townhall | Building | 391 | Washburn | 45 41 31 N | 091 43 40 W |
| Lowell Damon House Museum | Building | 223 | Milwaukee | 43 03 27 N | 088 00 27 W |
| Lowell Hall | Building | 266 | Dane | 43 04 33 N | 089 23 44 W |
| Lowry Hall | Building | 262 | Waukesha | 43 00 13 N | 088 13 44 W |
| Loyola Villa | Building | 282 | Waupaca | 44 20 39 N | 089 08 47 W |
| Luther Hall | Building | 234 | Racine | 42 40 41 N | 088 16 34 W |
| Lutheran Altenheim | Building | 231 | Milwaukee | 43 03 42 N | 088 00 23 W |
| Lutheran Childrens Home | Building | 205 | Milwaukee | 43 02 52 N | 088 00 58 W |
| Lutheran Home for the Aged | Building | 238 | Eau Claire | 44 48 19 N | 091 29 49 W |
| Lyceum Hall | Building | 257 | Sheboygan | 43 44 54 N | 087 58 41 W |
| Mabel Tainter Memorial Building | Building | 266 | Dunn | 44 52 36 N | 091 55 43 W |
| Madeline Island Historical Museum | Building | 187 | Ashland | 46 46 48 N | 090 47 20 W |
| Madeline Island Public Library | Building | 193 | Ashland | 46 46 54 N | 090 47 12 W |
| Madge Townhall | Building | 406 | Washburn | 45 45 36 N | 091 43 29 W |
| Madison Building | Building | 180 | Milwaukee | 43 02 17 N | 087 54 48 W |
| Madison Public Library | Building | 270 | Dane | 43 04 24 N | 089 23 14 W |
| Main Hall | Building | 204 | La Crosse | 43 48 48 N | 091 13 47 W |
| Main Hall | Building | 239 | Outagamie | 44 15 39 N | 088 23 59 W |
| Majestic Building | Building | 180 | Milwaukee | 43 02 19 N | 087 54 51 W |
| Manitowoc City Hall | Building | 181 | Manitowoc | 44 05 26 N | 087 39 31 W |
| Manitowoc County Courthouse | Building | 184 | Manitowoc | 44 05 18 N | 087 39 30 W |
| Manitowoc County Jail | Building | 184 | Manitowoc | 44 05 15 N | 087 39 32 W |
| Manitowoc Public Library | Building | 185 | Manitowoc | 44 05 08 N | 087 39 30 W |
| Mapes Hall | Building | 286 | Fond du Lac | 43 50 32 N | 088 50 47 W |
| Maplehurst Townhall | Building | 390 | Taylor | 45 02 43 N | 090 35 55 W |
| Marathon County Courthouse | Building | 370 | Marathon | 44 57 27 N | 089 37 28 W |
| Marathon County Historical Museum | Building | 370 | Marathon | 44 57 50 N | 089 37 33 W |
| Marathon County Jail | Building | 374 | Marathon | 44 57 27 N | 089 36 58 W |
| Marathon County Public Library | Building | 367 | Marathon | 44 57 36 N | 089 37 50 W |
| Marian Hall North | Building | 204 | La Crosse | 43 48 16 N | 091 14 43 W |
| Marian Hall South | Building | 205 | La Crosse | 43 48 15 N | 091 14 41 W |
| Marine Plaza | Building | 181 | Milwaukee | 43 02 17 N | 087 54 33 W |
| Marinette County Courthouse | Building | 181 | Marinette | 45 06 01 N | 087 38 00 W |
| Marinette County Historical Museum | Building | 179 | Marinette | 45 06 07 N | 087 37 47 W |
| Marinette County Home | Building | 186 | Marinette | 45 03 21 N | 087 43 59 W |
| Marquardt Manor | Building | 259 | Dodge | 43 12 09 N | 088 42 23 W |
| Marquette Hall | Building | 196 | Milwaukee | 43 02 18 N | 087 55 40 W |
| Marshall Scott Hall | Building | 289 | Fond du Lac | 43 50 32 N | 088 50 41 W |
| Marshfield City Hall | Building | 389 | Wood | 44 39 55 N | 090 10 24 W |
| Marshfield Public Library | Building | 390 | Wood | 44 39 55 N | 090 10 18 W |
| Martha Washington Home for Girls | Building | 213 | Milwaukee | 43 02 28 N | 087 59 29 W |
| Martin Luther Childrens Home | Building | 267 | Dane | 42 56 13 N | 089 11 47 W |
| Martin Luther King Community House | Building | 204 | Milwaukee | 43 02 02 N | 087 57 21 W |
| Mashuda Residence Hall | Building | 209 | Milwaukee | 43 02 21 N | 087 56 12 W |
| Matheson Memorial Library | Building | 314 | Walworth | 42 40 25 N | 088 32 36 W |
| Matthew A Marvin Field House | Building | 233 | Rock | 42 30 20 N | 089 01 53 W |
| Maurer Memorial Hall | Building | 235 | Rock | 42 30 25 N | 089 01 49 W |
| Mauston City Hall | Building | 265 | Juneau | 43 47 50 N | 090 04 26 W |
| Mauston Public Library | Building | 268 | Juneau | 43 47 50 N | 090 04 34 W |
| Maxon Hall | Building | 262 | Waukesha | 43 00 12 N | 088 13 44 W |
| May Hall | Building | 276 | Pierce | 44 51 14 N | 092 37 39 W |
| Mayville City Hall | Building | 277 | Dodge | 43 29 46 N | 088 32 38 W |
| Mayville Public Library | Building | 280 | Dodge | 43 29 49 N | 088 32 42 W |
| McArdle Cancer Laboratory | Building | 285 | Dane | 43 04 33 N | 089 24 32 W |
| McCaskill Hall | Building | 193 | Douglas | 46 43 04 N | 092 05 19 W |
| McClain Athletic Facility | Building | 265 | Dane | 43 04 15 N | 089 24 40 W |
| McCormick Residence Hall | Building | 201 | Milwaukee | 43 02 22 N | 087 55 57 W |
| McCutchan Hall | Building | 263 | Walworth | 42 50 17 N | 088 44 42 W |
| McDonald Terrace | Building | 204 | La Crosse | 43 48 15 N | 091 14 43 W |
| McGraw Hall | Building | 257 | Walworth | 42 50 12 N | 088 44 33 W |
| McKinley Townhall | Building | 389 | Polk | 45 34 20 N | 092 11 12 W |
| McLaren Hall | Building | 207 | Milwaukee | 43 04 41 N | 087 52 47 W |
| McMillian Hall | Building | 276 | Pierce | 44 51 11 N | 092 37 02 W |
| McMillian Memorial Library | Building | 310 | Wood | 44 23 17 N | 089 49 17 W |
| Mead Public Library | Building | 194 | Sheboygan | 43 45 09 N | 087 42 48 W |
| Meadowbrook Townhall | Building | 369 | Sawyer | 45 40 30 N | 091 09 10 W |
| Mears Home | Building | 231 | Winnebago | 44 01 19 N | 088 31 46 W |
| Medford City Hall | Building | 434 | Taylor | 45 08 15 N | 090 20 42 W |
| Medford Public Library | Building | 436 | Taylor | 45 08 04 N | 090 20 34 W |
| Meenon Townhall | Building | 299 | Burnett | 45 50 33 N | 092 21 51 W |
| Meggers Hall | Building | 343 | Barron | 45 29 01 N | 091 44 49 W |
| Meiklejohn House | Building | 267 | Dane | 43 04 18 N | 089 24 22 W |
| Mellen Area Museum | Building | 385 | Ashland | 46 19 37 N | 090 39 37 W |
| Mellen City Hall | Building | 385 | Ashland | 46 19 37 N | 090 39 37 W |
| Memorial Arch | Building | 265 | Dane | 43 04 15 N | 089 24 33 W |
| Memorial Hall | Building | 214 | Ashland | 46 34 47 N | 090 52 25 W |
| Memorial Hall | Building | 289 | Fond du Lac | 43 50 37 N | 088 50 36 W |
| Memorial Hall | Building | 188 | Racine | 42 43 35 N | 087 46 52 W |
| Memorial Hall | Building | 239 | Rock | 42 30 07 N | 089 01 49 W |
| Memorial Library | Building | 213 | Ashland | 46 34 51 N | 090 52 26 W |
| Memorial Library | Building | 262 | Dane | 43 04 31 N | 089 23 53 W |
| Memorial Library | Building | 198 | Milwaukee | 43 02 17 N | 087 55 51 W |
| Memorial Student Center | Building | 261 | Dunn | 44 52 25 N | 091 55 37 W |
| Memorial Union | Building | 263 | Dane | 43 04 34 N | 089 23 58 W |
| Memorial Union | Building | 238 | Outagamie | 44 15 38 N | 088 23 53 W |
| Menasha City Hall | Building | 232 | Winnebago | 44 12 02 N | 088 27 03 W |
| Menomonie City Hall | Building | 257 | Dunn | 44 52 40 N | 091 55 41 W |
| Mercy Medical Center Health Sciences Library | Building | 230 | Winnebago | 44 01 23 N | 088 31 22 W |