Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Lewis E6092 Dam | Dam | 304 | Jackson | 44 17 48 N | 090 59 25 W |
| Lewis Lake | Lake | 424 | Sawyer | 46 05 06 N | 091 11 25 W |
| Lewis Lake | Lake | 507 | Vilas | 46 00 03 N | 089 22 54 W |
| Lewis Park | Park | 260 | Dane | 43 00 21 N | 089 17 37 W |
| Lewis School (historical) | School | 258 | Waupaca | 44 18 58 N | 089 05 12 W |
| Lewis Valley | Valley | | La Crosse | 44 03 41 N | 091 12 07 W |
| Lewis Valley | Valley | | Trempealeau | 44 17 32 N | 091 27 33 W |
| Lewis Valley School (historical) | School | 234 | La Crosse | 44 01 21 N | 091 08 32 W |
| Lewis Valley School (historical) | School | 244 | Trempealeau | 44 18 06 N | 091 29 60 W |
| Lewislynn Landing Field | Airport | 244 | Racine | 42 44 15 N | 088 08 05 W |
| Lewiston | Populated Place | 247 | Columbia | 43 34 50 N | 089 38 08 W |
| Lewiston 2 C 6118 Dam | Dam | 241 | Columbia | 43 35 60 N | 089 35 12 W |
| Lewiston Elementary School | School | 242 | Columbia | 43 35 39 N | 089 33 32 W |
| Lexington School (historical) | School | 320 | Barron | 45 12 57 N | 091 43 39 W |
| Ley Chapel | Church | 241 | Sheboygan | 43 50 32 N | 087 53 10 W |
| Ley Creek | Stream | | Iowa | 42 55 28 N | 090 00 15 W |
| Leyden | Populated Place | 272 | Rock | 42 43 51 N | 089 07 44 W |
| LHW Heliport | Airport | 274 | Walworth | 42 33 30 N | 088 26 23 W |
| Lib Cross Island | Island | 237 | Columbia | 43 28 20 N | 089 26 40 W |
| Libby Creek | Stream | | Dodge | 43 37 13 N | 088 40 52 W |
| Libby Point | Cape | 229 | Winnebago | 44 03 27 N | 088 31 07 W |
| Liberty | Populated Place | 237 | Vernon | 43 30 59 N | 090 44 02 W |
| Liberty Bell School | School | 241 | Manitowoc | 43 59 35 N | 087 49 18 W |
| Liberty Bell School (historical) | School | 283 | Dodge | 43 27 55 N | 088 42 17 W |
| Liberty Bell School (historical) | School | 479 | Langlade | 45 16 13 N | 089 19 29 W |
| Liberty Bell School (historical) | School | 234 | Outagamie | 44 28 02 N | 088 35 25 W |
| Liberty Bell School (historical) | School | 344 | Portage | 44 39 49 N | 089 38 35 W |
| Liberty Cemetery | Cemetery | 248 | Kenosha | 42 31 04 N | 088 05 53 W |
| Liberty Cemetery | Cemetery | 279 | Sheboygan | 43 49 60 N | 087 55 51 W |
| Liberty Corners | Populated Place | 256 | Kenosha | 42 31 15 N | 088 05 57 W |
| Liberty Creek | Stream | | Green | 42 44 25 N | 089 24 42 W |
| Liberty Grove Cemetery | Cemetery | 185 | Door | 45 14 58 N | 087 03 51 W |
| Liberty Hill School (historical) | School | 327 | Chippewa | 44 52 46 N | 091 02 06 W |
| Liberty Hill School (historical) | School | 336 | St. Croix | 44 52 10 N | 092 35 03 W |
| Liberty Mine | Mine | 299 | Lafayette | 42 38 58 N | 090 22 17 W |
| Liberty Mound | Summit | 326 | Dane | 43 00 56 N | 089 09 45 W |
| Liberty Park | Park | 360 | Marathon | 44 53 58 N | 089 37 52 W |
| Liberty Park | Park | 269 | Rock | 42 46 52 N | 088 57 54 W |
| Liberty Pole | Populated Place | 366 | Vernon | 43 29 24 N | 090 54 31 W |
| Liberty Pole Elementary School | School | 371 | Vernon | 43 29 15 N | 090 54 48 W |
| Liberty Pole Hill | Summit | 338 | Green | 42 49 46 N | 089 24 36 W |
| Liberty Pole United Methodist Church | Church | 369 | Vernon | 43 29 10 N | 090 54 49 W |
| Liberty Prairie Cemetery | Cemetery | 300 | Dane | 43 01 54 N | 089 08 23 W |
| Liberty Prairie Cemetery | Cemetery | 272 | Winnebago | 43 54 49 N | 088 43 31 W |
| Liberty Ridge | Ridge | 347 | Grant | 42 54 20 N | 090 38 52 W |
| Liberty School | School | 290 | Dane | 43 02 21 N | 089 06 23 W |
| Liberty School | School | 312 | Dodge | 43 28 15 N | 088 27 39 W |
| Liberty School | School | 239 | Winnebago | 44 03 46 N | 088 51 17 W |
| Liberty School (historical) | School | 356 | Barron | 45 19 27 N | 092 00 20 W |
| Liberty School (historical) | School | 224 | Kewaunee | 44 36 13 N | 087 33 03 W |
| Liberty School (historical) | School | 397 | Marathon | 44 47 11 N | 089 40 13 W |
| Liberty School (historical) | School | 351 | Polk | 45 13 25 N | 092 18 54 W |
| Liberty School (historical) | School | 505 | Price | 45 24 38 N | 090 05 04 W |
| Liberty School (historical) | School | 276 | Sheboygan | 43 35 13 N | 087 55 16 W |
| Liberty School (historical) | School | 333 | St. Croix | 45 03 02 N | 092 25 16 W |
| Liberty School (historical) | School | 448 | Taylor | 45 02 52 N | 090 20 27 W |
| Library Lake | Lake | 376 | Barron | 45 32 02 N | 092 01 28 W |
| Library Mall | Park | 262 | Dane | 43 04 32 N | 089 23 57 W |
| Library Park | Park | 184 | Kenosha | 42 34 49 N | 087 49 10 W |
| Liege Lake | Lake | 484 | Oneida | 45 41 58 N | 089 35 01 W |
| Lierman School (historical) | School | 285 | Dunn | 44 55 47 N | 092 02 07 W |
| Life Skill Center | School | 385 | Marathon | 44 57 42 N | 089 39 06 W |
| Lightfoot Elementary School | School | 206 | Sheboygan | 43 43 52 N | 087 49 00 W |
| Lightfoot Hollow | Valley | | Crawford | 43 16 17 N | 090 41 38 W |
| Lightfoot Ridge | Ridge | 344 | Crawford | 43 16 19 N | 090 42 46 W |
| Lighthouse Baptist Church | Church | 378 | Vernon | 43 33 31 N | 090 53 25 W |
| Lighthouse Bay | Bay | 184 | Bayfield | 46 59 45 N | 090 56 38 W |
| Lighthouse Christian Fellowship Church | Church | 194 | Sheboygan | 43 46 05 N | 087 43 07 W |
| Lighthouse Fellowship Church | Church | 227 | Rock | 42 30 32 N | 089 02 13 W |
| Lighthouse Harbor | Harbor | 228 | Fond du Lac | 43 47 47 N | 088 26 14 W |
| Lighthouse Reef | Bar | 228 | Winnebago | 44 11 43 N | 088 25 11 W |
| Lighthouse Rock | Pillar | 304 | Adams | 43 54 33 N | 089 46 42 W |
| Lighthouse Rock | Pillar | 279 | Sauk | 43 33 35 N | 090 02 02 W |
| Lighthouse Rock Campground | Locale | 286 | Sauk | 43 33 48 N | 090 01 57 W |
| Lighting Plant Dam | Dam | 261 | Waupaca | 44 21 42 N | 089 05 00 W |
| Lightning Creek | Stream | | Barron | 45 24 01 N | 092 00 20 W |
| Lightning Creek State Wildlife Area | Park | 356 | Barron | 45 25 09 N | 092 03 07 W |
| Lillie Lake | Lake | 296 | Marinette | 45 31 45 N | 088 06 01 W |
| Lilly Bay | Bay | 176 | Door | 44 50 32 N | 087 15 28 W |
| Lilly Bay Creek | Stream | | Door | 44 50 50 N | 087 16 01 W |
| Lilly Heights Park | Park | 231 | Waukesha | 43 05 38 N | 088 05 22 W |
| Lilly Lake | Lake | 244 | Brown | 44 25 33 N | 087 51 10 W |
| Lilly Lake | Lake | 355 | Florence | 45 53 06 N | 088 07 54 W |
| Lilly Lake | Lake | 230 | Kenosha | 42 33 48 N | 088 12 46 W |
| Lilly Lake | Lake | 361 | Marathon | 44 46 37 N | 089 14 28 W |
| Lilly Lake Cemetery | Cemetery | 247 | Brown | 44 26 37 N | 087 52 05 W |
| Lilly Lake County Park | Park | 245 | Brown | 44 25 23 N | 087 51 03 W |
| Lilly Ridge | Ridge | 354 | Crawford | 43 19 59 N | 090 54 01 W |
| Lily | Populated Place | 439 | Langlade | 45 18 25 N | 088 51 14 W |
| Lily Bass Lake | Lake | 490 | Oneida | 45 44 45 N | 089 21 41 W |
| Lily Cemetery | Cemetery | 470 | Langlade | 45 17 56 N | 088 50 22 W |
| Lily Lake | Lake | 303 | Burnett | 45 59 16 N | 092 06 01 W |
| Lily Lake | Lake | 297 | Burnett | 45 54 04 N | 092 16 25 W |
| Lily Lake | Lake | 470 | Forest | 45 25 41 N | 088 50 15 W |
| Lily Lake | Lake | 456 | Lincoln | 45 31 22 N | 089 38 04 W |
| Lily Lake | Lake | 276 | Marinette | 45 23 43 N | 088 06 32 W |
| Lily Lake | Lake | 326 | Marinette | 45 37 05 N | 088 06 29 W |
| Lily Lake | Lake | 245 | Oconto | 44 54 37 N | 088 12 41 W |
| Lily Lake | Lake | 479 | Oneida | 45 35 18 N | 089 29 04 W |
| Lily Lake | Lake | 504 | Oneida | 45 47 32 N | 089 16 37 W |
| Lily Lake | Lake | 247 | Shawano | 44 50 25 N | 088 28 44 W |
| Lily Lake School (historical) | School | 472 | Lincoln | 45 31 03 N | 089 38 26 W |
| Lily Pond | Bay | 203 | Pierce | 44 33 55 N | 092 27 25 W |
| Lily River | Stream | | Langlade | 45 18 21 N | 088 51 20 W |
| Lily School (historical) | School | 346 | Portage | 44 37 37 N | 089 43 11 W |
| Lily Springs | Spring | 449 | Langlade | 45 20 51 N | 088 48 47 W |
| Lily Springs State Fishery Area | Park | 451 | Langlade | 45 20 52 N | 088 48 37 W |
| Lilypad Creek | Stream | | Forest | 45 55 53 N | 088 41 43 W |
| Lilypad Lake | Lake | 482 | Forest | 45 56 09 N | 088 43 57 W |
| Lima | Populated Place | 265 | Pepin | 44 38 02 N | 091 52 23 W |