Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Litz School (historical) | School | 284 | Sauk | 43 36 21 N | 090 10 19 W |
| Lium School (historical) | School | 403 | Vernon | 43 40 36 N | 090 52 48 W |
| Living Hope Evangelical Church | Church | 319 | Clark | 44 33 32 N | 090 35 44 W |
| Living Light Christian Church | Church | 196 | Kenosha | 42 34 45 N | 087 51 22 W |
| Living Waters Camp | Locale | 319 | Vernon | 43 40 51 N | 090 48 12 W |
| Living Word Christian Church | Church | 204 | La Crosse | 43 48 45 N | 091 13 40 W |
| Living Word Church | Church | 380 | Barron | 45 31 48 N | 092 01 18 W |
| Livingston | Populated Place | 352 | Grant | 42 53 60 N | 090 25 51 W |
| Livingston Branch | Stream | | Iowa | 42 52 60 N | 090 22 00 W |
| Lizard Mound State Park | Park | 276 | Washington | 43 27 48 N | 088 08 21 W |
| Lizzy Pauls Pond | Reservoir | 204 | Buffalo | 44 16 01 N | 091 52 18 W |
| Lliff Cemetery | Cemetery | 320 | Green | 42 38 23 N | 089 41 07 W |
| Lloyd Creek | Stream | | Langlade | 45 13 17 N | 089 23 12 W |
| Lloyd Hilgendorf G-9001 Dam | Dam | 459 | Lincoln | 45 26 60 N | 089 34 36 W |
| Lloyd Kalepp 3WC77875a Dam | Dam | 400 | Clark | 44 58 06 N | 090 30 42 W |
| Lloyd Keller E6861 Dam | Dam | 388 | Marathon | 44 47 24 N | 090 05 36 W |
| Lloyd Street School | School | 209 | Milwaukee | 43 03 31 N | 087 55 40 W |
| Lobdells Point | Cape | 179 | Door | 45 20 09 N | 086 56 52 W |
| Lobischer Creek | Stream | | Vilas | 46 07 27 N | 089 04 30 W |
| Loch Lomond Park | Park | 246 | Rock | 42 37 52 N | 089 04 35 W |
| Lock 5 | Dam | 184 | Outagamie | 44 17 13 N | 088 14 47 W |
| Lock and Dam Number 11 | Dam | 183 | Grant | 42 32 29 N | 090 38 27 W |
| Lock and Dam Number 4 | Dam | 203 | Buffalo | 44 19 32 N | 091 55 13 W |
| Lock and Dam Number 5 | Dam | 198 | Buffalo | 44 09 40 N | 091 48 39 W |
| Lock and Dam Number 6 | Dam | 197 | Trempealeau | 43 59 59 N | 091 26 18 W |
| Lock and Dam Number 7 | Dam | 192 | La Crosse | 43 52 01 N | 091 18 26 W |
| Lock and Dam Number 8 | Dam | 189 | Vernon | 43 34 12 N | 091 13 54 W |
| Lock and Dam Number 8 | Dam | 190 | Vernon | 43 34 14 N | 091 13 55 W |
| Lock and Dam Number 9 | Dam | 187 | Crawford | 43 12 46 N | 091 06 15 W |
| Lock and Dam Number Five A | Dam | 197 | Buffalo | 44 05 18 N | 091 40 08 W |
| Lock School (historical) | School | 267 | Dunn | 44 42 46 N | 091 47 31 W |
| Locust Corners Farm | Locale | 210 | Richland | 43 13 34 N | 090 17 50 W |
| Locust Grove Farm (historical) | Locale | 262 | Kenosha | 42 32 15 N | 088 17 55 W |
| Locust Grove School | School | 286 | Walworth | 42 32 46 N | 088 26 35 W |
| Locust Grove School (historical) | School | 192 | Oconto | 44 41 57 N | 088 03 00 W |
| Locust Grove School (historical) | School | 347 | Pierce | 44 50 49 N | 092 20 54 W |
| Locust Lane Elementary School | School | 273 | Eau Claire | 44 51 11 N | 091 27 42 W |
| Locust Lane Playground | Park | 273 | Eau Claire | 44 51 10 N | 091 27 42 W |
| Locust School (historical) | School | 283 | Fond du Lac | 43 52 23 N | 088 46 44 W |
| Lodde's Mill Bluff State Natural Area | Park | | Sauk | 43 15 38 N | 089 48 25 W |
| Loddes Mill | Populated Place | 226 | Sauk | 43 15 50 N | 089 48 02 W |
| Loddes Mill Bluff | Cliff | 258 | Sauk | 43 15 33 N | 089 48 32 W |
| Lodi | Populated Place | 251 | Columbia | 43 18 50 N | 089 31 35 W |
| Lodi Elementary School | School | 263 | Columbia | 43 18 38 N | 089 31 31 W |
| Lodi High School | School | 251 | Columbia | 43 19 06 N | 089 31 33 W |
| Lodi Lakeland Airport | Airport | 277 | Columbia | 43 19 60 N | 089 31 15 W |
| Lodi Marsh | Swamp | 256 | Dane | 43 17 03 N | 089 33 33 W |
| Lodi Marsh State Natural Area | Park | 256 | Dane | 43 17 04 N | 089 33 35 W |
| Lodi Marsh State Wildlife Area | Park | 256 | Dane | 43 17 31 N | 089 32 35 W |
| Loehmanns Plaza Shopping Center | Locale | 254 | Waukesha | 43 02 16 N | 088 07 42 W |
| Loew School (historical) | School | 324 | Chippewa | 45 00 07 N | 091 32 58 W |
| Log Cabin School | School | 275 | Marquette | 43 38 37 N | 089 16 26 W |
| Log Creek | Stream | | Sawyer | 45 51 05 N | 090 42 56 W |
| Log Museum | Building | 383 | Washburn | 45 39 25 N | 091 33 19 W |
| Logan | Populated Place | 259 | Oconto | 45 05 12 N | 088 23 59 W |
| Logan Creek | Stream | | Door | 44 56 58 N | 087 12 52 W |
| Logan Creek | Stream | | Forest | 45 29 32 N | 089 00 37 W |
| Logan Middle School | School | 203 | La Crosse | 43 50 38 N | 091 14 41 W |
| Logan Museum | Building | 239 | Rock | 42 30 07 N | 089 01 49 W |
| Loganville | Populated Place | 288 | Sauk | 43 26 25 N | 090 02 09 W |
| Logemanns Creek | Stream | | Shawano | 44 45 47 N | 088 55 21 W |
| Logger Lake | Lake | 346 | Chippewa | 45 14 22 N | 091 22 51 W |
| Logger Lake | Lake | 464 | Forest | 45 40 33 N | 088 33 35 W |
| Logging Creek | Stream | | Burnett | 45 38 25 N | 092 44 50 W |
| Logging Creek Cemetery | Cemetery | 268 | Burnett | 45 40 32 N | 092 44 01 W |
| Logging Creek Dike H12.395 Dam | Dam | 271 | Burnett | 45 41 30 N | 092 44 31 W |
| Logging Creek Flowage 6 | Reservoir | 271 | Burnett | 45 41 30 N | 092 44 31 W |
| Lohn Creek | Stream | | St. Croix | 44 51 37 N | 092 14 12 W |
| Lohrville | Populated Place | 245 | Waushara | 44 02 14 N | 089 07 01 W |
| Lokemoen Lake | Lake | 460 | Lincoln | 45 19 05 N | 089 36 17 W |
| Loken School (historical) | School | 312 | Shawano | 44 46 58 N | 089 01 12 W |
| Lola Cemetery | Cemetery | 312 | Waupaca | 44 29 59 N | 089 07 25 W |
| Lombard | Populated Place | 372 | Clark | 44 57 33 N | 090 44 21 W |
| Lombard Cemetery | Cemetery | 351 | Portage | 44 25 20 N | 089 25 33 W |
| Lombardi Junior High School | School | 220 | Brown | 44 30 56 N | 088 06 37 W |
| Lombardi Middle School | School | 220 | Brown | 44 30 56 N | 088 06 37 W |
| Lomira | Populated Place | 323 | Dodge | 43 35 29 N | 088 26 37 W |
| Lomira Creek | Stream | | Dodge | 43 31 27 N | 088 25 09 W |
| Lomira High School | School | 315 | Dodge | 43 35 22 N | 088 26 49 W |
| London | Populated Place | 266 | Dane | 43 02 52 N | 089 00 46 W |
| London Square Mall Shopping Center | Locale | 267 | Eau Claire | 44 47 23 N | 091 27 34 W |
| Lone Balsam School (historical) | School | 335 | Pierce | 44 49 05 N | 092 20 53 W |
| Lone Birch School (historical) | School | 336 | Rusk | 45 24 06 N | 091 11 41 W |
| Lone Birch School (historical) | School | 326 | Wood | 44 27 11 N | 089 47 15 W |
| Lone Corner School (historical) | School | 510 | Price | 45 34 54 N | 090 12 27 W |
| Lone Elm School (historical) | School | 353 | Portage | 44 34 34 N | 089 48 27 W |
| Lone Elm School (historical) | School | 365 | Rusk | 45 32 51 N | 091 16 42 W |
| Lone Elm School (historical) | School | 373 | Wood | 44 36 47 N | 090 17 57 W |
| Lone Island | Island | 272 | Dodge | 43 35 25 N | 088 54 59 W |
| Lone Island | Island | 314 | Washington | 43 24 14 N | 088 15 24 W |
| Lone Maple School (historical) | School | 351 | Wood | 44 31 33 N | 089 51 54 W |
| Lone Pine Cemetery | Cemetery | 342 | Portage | 44 18 08 N | 089 27 32 W |
| Lone Pine Cemetery | Cemetery | 349 | St. Croix | 44 57 01 N | 092 17 09 W |
| Lone Pine Lake | Lake | 290 | Polk | 45 38 18 N | 092 38 11 W |
| Lone Pine Lake | Lake | 509 | Vilas | 46 12 47 N | 089 37 03 W |
| Lone Pine School | School | 294 | Burnett | 45 55 30 N | 092 22 18 W |
| Lone Pine School (historical) | School | 339 | Clark | 44 36 40 N | 090 54 09 W |
| Lone Pine School (historical) | School | 272 | Dunn | 44 53 13 N | 091 52 14 W |
| Lone Pine School (historical) | School | 402 | Marathon | 44 52 24 N | 090 13 07 W |
| Lone Pine School (historical) | School | 271 | Waupaca | 44 26 44 N | 088 47 16 W |
| Lone Pine School (historical) | School | 325 | Wood | 44 26 18 N | 089 52 31 W |
| Lone Pine Stock Farm | Locale | 308 | Richland | 43 31 45 N | 090 14 01 W |
| Lone Rock | Pillar | 297 | Adams | 43 52 56 N | 089 51 57 W |
| Lone Rock | Populated Place | 276 | Juneau | 43 56 38 N | 090 12 50 W |
| Lone Rock | Populated Place | 216 | Richland | 43 10 60 N | 090 11 52 W |
| Lone Rock | Summit | 342 | Portage | 44 15 03 N | 089 35 19 W |
| Lone Rock Boat Landing | Locale | 209 | Iowa | 43 09 33 N | 090 11 16 W |
| Lone Rock Cemetery | Cemetery | 273 | Juneau | 43 54 01 N | 090 12 33 W |
| Lone Rock Cemetery | Cemetery | 216 | Richland | 43 11 27 N | 090 12 28 W |
| Lone Rock Elementary School | School | 216 | Richland | 43 11 10 N | 090 12 03 W |