Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Hughes House | Building | 292 | Fond du Lac | 43 50 33 N | 088 50 30 W |
| Humphrey Hall | Building | 267 | Dane | 43 04 38 N | 089 24 46 W |
| Humphrey Hall | Building | 204 | Milwaukee | 43 02 20 N | 087 56 04 W |
| Hunter Townhall | Building | 411 | Sawyer | 45 58 16 N | 091 14 03 W |
| Hurley City Hall | Building | 461 | Iron | 46 26 57 N | 090 11 03 W |
| Hurley Public Library | Building | 451 | Iron | 46 27 12 N | 090 11 10 W |
| Huston Hall | Building | 213 | Milwaukee | 43 02 33 N | 087 57 05 W |
| Hutchinson Memorial Library | Building | 293 | Dodge | 43 32 23 N | 089 00 24 W |
| Hutchison Hall | Building | 204 | La Crosse | 43 48 55 N | 091 14 04 W |
| Hyatt-Smith Hall | Building | 247 | Rock | 42 38 56 N | 089 03 23 W |
| Hyer Hall | Building | 333 | Portage | 44 31 56 N | 089 34 08 W |
| Hyer Hall | Building | 263 | Walworth | 42 50 11 N | 088 44 36 W |
| Indian Community Hall (historical) | Building | 466 | Forest | 45 25 35 N | 088 38 00 W |
| Ingram Center | Building | 274 | Pierce | 44 51 36 N | 092 37 42 W |
| Iron County Courthouse | Building | 467 | Iron | 46 26 53 N | 090 10 60 W |
| Iron County Jail | Building | 452 | Iron | 46 27 19 N | 090 11 02 W |
| Iron County Memorial Building | Building | 465 | Iron | 46 26 53 N | 090 10 57 W |
| Irvin Young Memorial Library | Building | 254 | Walworth | 42 49 59 N | 088 44 12 W |
| Italian Workmens Club | Building | 260 | Dane | 43 04 03 N | 089 24 05 W |
| J A Kimberly Memorial Library | Building | 233 | Outagamie | 44 15 21 N | 088 23 14 W |
| J E Hamilton Community House | Building | 183 | Manitowoc | 44 08 56 N | 087 34 08 W |
| J H Morgan House | Building | 329 | Portage | 44 27 14 N | 089 32 29 W |
| J L Jensen House | Building | 332 | Portage | 44 31 07 N | 089 34 50 W |
| J M Storzer Physical Education Center | Building | 269 | Fond du Lac | 43 50 30 N | 088 51 07 W |
| Jackson County Courthouse | Building | 242 | Jackson | 44 17 44 N | 090 51 05 W |
| Jackson Townhall | Building | 315 | Burnett | 45 55 47 N | 092 13 05 W |
| James Vincent House | Building | 207 | La Crosse | 43 48 31 N | 091 14 30 W |
| Jamison Museum | Building | 293 | Grant | 42 43 57 N | 090 28 18 W |
| Janesville City Hall | Building | 241 | Rock | 42 40 56 N | 089 01 37 W |
| Janesville Public Library | Building | 236 | Rock | 42 40 44 N | 089 01 08 W |
| Jarvis Hall | Building | 261 | Dunn | 44 52 23 N | 091 55 31 W |
| Jefferson City Hall | Building | 244 | Jefferson | 43 00 12 N | 088 48 27 W |
| Jefferson County Courthouse | Building | 245 | Jefferson | 43 00 10 N | 088 48 24 W |
| Jenkins Theater | Building | 333 | Portage | 44 31 36 N | 089 34 20 W |
| Jennie-O Grain Elevator | Building | 338 | Barron | 45 24 09 N | 091 50 43 W |
| Jessie Jack Hooper House | Building | 231 | Winnebago | 44 01 52 N | 088 33 20 W |
| Jim Dan Hill Library | Building | 194 | Douglas | 46 42 60 N | 092 05 28 W |
| John Hicks Home | Building | 232 | Winnebago | 44 02 02 N | 088 33 25 W |
| John M Rose Hall | Building | 198 | Brown | 44 31 53 N | 087 55 22 W |
| John Michael Kohler Art Center | Building | 192 | Sheboygan | 43 45 08 N | 087 42 39 W |
| John Michael Kohler House | Building | 191 | Sheboygan | 43 45 07 N | 087 42 35 W |
| John R Morgan House | Building | 234 | Winnebago | 44 01 16 N | 088 32 26 W |
| John Roche Building | Building | 254 | Columbia | 43 32 40 N | 089 26 59 W |
| Johnson Fieldhouse | Building | 259 | Dunn | 44 52 13 N | 091 55 40 W |
| Johnson Hall | Building | 292 | Fond du Lac | 43 50 32 N | 088 50 36 W |
| Johnson Hall | Building | 277 | Pierce | 44 51 13 N | 092 37 42 W |
| Johnson Residence Hall | Building | 188 | Kenosha | 42 37 11 N | 087 49 15 W |
| Johnson Townhall | Building | 436 | Marathon | 45 00 04 N | 090 08 20 W |
| Johnston Hall | Building | 196 | Milwaukee | 43 02 18 N | 087 55 37 W |
| Johnston Hall | Building | 207 | Milwaukee | 43 04 42 N | 087 52 41 W |
| Jorns Hall | Building | 266 | Dane | 43 04 39 N | 089 24 47 W |
| Joseph and Emma Wachute Memorial Library | Building | 198 | Crawford | 43 03 02 N | 091 08 43 W |
| Joseph Dessert Library | Building | 354 | Marathon | 44 47 30 N | 089 42 02 W |
| Joseph Mann Library | Building | 182 | Manitowoc | 44 08 52 N | 087 34 08 W |
| Juneau Building | Building | 196 | Milwaukee | 43 00 44 N | 087 55 07 W |
| Juneau City Hall | Building | 280 | Dodge | 43 24 29 N | 088 42 08 W |
| Juneau County Courthouse | Building | 268 | Juneau | 43 47 47 N | 090 04 31 W |
| Juneau Public Library | Building | 279 | Dodge | 43 24 20 N | 088 42 08 W |
| Juneau Square Office Building | Building | 184 | Milwaukee | 43 02 19 N | 087 54 03 W |
| Karl Mathie House | Building | 349 | Marathon | 44 47 34 N | 089 41 51 W |
| Katherine Thomas Hall | Building | 235 | Eau Claire | 44 47 56 N | 091 30 10 W |
| Kaukauna Public Library | Building | 199 | Outagamie | 44 16 46 N | 088 16 14 W |
| Kemper Hall | Building | 282 | Fond du Lac | 43 50 29 N | 088 50 53 W |
| Kenosha County Courthouse | Building | 185 | Kenosha | 42 35 06 N | 087 49 23 W |
| Kenosha County Jail | Building | 185 | Kenosha | 42 35 07 N | 087 49 23 W |
| Kenosha Municipal Building | Building | 182 | Kenosha | 42 35 16 N | 087 49 13 W |
| Kenosha Public Museum | Building | 185 | Kenosha | 42 35 03 N | 087 49 26 W |
| Keystone Townhall | Building | 251 | Bayfield | 46 31 52 N | 091 04 28 W |
| Kiel City Hall | Building | 280 | Manitowoc | 43 54 48 N | 088 02 16 W |
| Kiel Public Library | Building | 280 | Manitowoc | 43 54 48 N | 088 02 16 W |
| Kilbourn Nursing Home | Building | 214 | Milwaukee | 43 02 29 N | 087 56 25 W |
| Kimball Town Hall | Building | 423 | Iron | 46 28 20 N | 090 12 55 W |
| Kimberly Hall | Building | 205 | Milwaukee | 43 04 44 N | 087 52 41 W |
| Kimberly Village Hall | Building | 222 | Outagamie | 44 16 19 N | 088 19 57 W |
| King Hall | Building | 281 | Dane | 43 04 34 N | 089 24 39 W |
| Kingdom Hall | Building | 383 | Marathon | 44 48 18 N | 089 14 38 W |
| Kinnickinnic Townhall | Building | 289 | St. Croix | 44 54 45 N | 092 33 32 W |
| Klienpell Fine Arts Building | Building | 274 | Pierce | 44 51 13 N | 092 37 15 W |
| Knapp Memorial Graduate Center | Building | 277 | Dane | 43 04 47 N | 089 23 12 W |
| Knilans Hall | Building | 258 | Jefferson | 42 50 34 N | 088 44 24 W |
| Knutzen Hall | Building | 336 | Portage | 44 31 58 N | 089 34 19 W |
| Koehn Institute | Building | 229 | Winnebago | 44 01 21 N | 088 33 01 W |
| Kolf Sports Center | Building | 230 | Winnebago | 44 01 29 N | 088 33 10 W |
| Kostka Hall | Building | 219 | Milwaukee | 43 04 24 N | 088 01 52 W |
| Krannett Graduate Research Center | Building | 234 | Outagamie | 44 15 19 N | 088 23 18 W |
| Kresge Little Theatre | Building | 296 | Fond du Lac | 43 50 40 N | 088 50 27 W |
| Krueger Parent and Child Center | Building | 204 | Milwaukee | 43 02 23 N | 087 56 04 W |
| L E Phillips Memorial Public Library | Building | 240 | Eau Claire | 44 48 47 N | 091 29 57 W |
| L G Wood Hall | Building | 198 | Brown | 44 31 53 N | 087 55 24 W |
| La Crosse Civic Center | Building | 196 | La Crosse | 43 48 45 N | 091 15 23 W |
| La Crosse Community Theatre | Building | 206 | La Crosse | 43 48 45 N | 091 14 59 W |
| La Crosse County Courthouse | Building | 205 | La Crosse | 43 48 53 N | 091 14 55 W |
| La Crosse Public Library | Building | 206 | La Crosse | 43 48 41 N | 091 14 41 W |
| La Crosse Tribune Library | Building | 202 | La Crosse | 43 48 58 N | 091 15 02 W |
| Ladysmith City Hall | Building | 349 | Rusk | 45 27 50 N | 091 06 14 W |
| Ladysmith Public Library | Building | 347 | Rusk | 45 27 56 N | 091 06 03 W |
| LaFollette Townhall | Building | 302 | Burnett | 45 47 28 N | 092 16 59 W |
| Lake Geneva City Hall | Building | 266 | Walworth | 42 35 31 N | 088 25 56 W |
| Lake Geneva Museum | Building | 269 | Walworth | 42 35 34 N | 088 26 10 W |
| Lake Geneva Public Library | Building | 267 | Walworth | 42 35 29 N | 088 26 15 W |
| Lake Seven Movie Theatre | Building | 343 | Barron | 45 27 43 N | 091 44 04 W |
| Lakeside Childrens Center | Building | 202 | Milwaukee | 43 03 39 N | 087 52 56 W |
| Laketown Townhall | Building | 308 | Polk | 45 35 59 N | 092 36 03 W |
| Lalumiere Language Hall | Building | 194 | Milwaukee | 43 02 12 N | 087 55 46 W |
| Lancaster City Hall | Building | 333 | Grant | 42 50 49 N | 090 42 33 W |
| Lane Library | Building | 295 | Fond du Lac | 43 50 38 N | 088 50 32 W |
| Langlade County Courthouse | Building | 457 | Langlade | 45 08 38 N | 089 09 18 W |
| Laona District Ranger Station | Building | 476 | Forest | 45 33 37 N | 088 40 43 W |
| Lapham Park Recreation Building | Building | 207 | Milwaukee | 43 03 14 N | 087 55 21 W |
| Lathrop Hall | Building | 275 | Dane | 43 04 25 N | 089 24 11 W |