Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Madison Area Technical College - Fort Atkinson | School | 253 | Jefferson | 42 56 23 N | 088 51 23 W |
| Madison Area Technical College - Portage | School | 250 | Columbia | 43 33 43 N | 089 28 21 W |
| Madison Building | Building | 180 | Milwaukee | 43 02 17 N | 087 54 48 W |
| Madison Chinese Christian Church | Church | 262 | Dane | 43 04 03 N | 089 24 41 W |
| Madison Creek | Stream | | Jackson | 44 11 17 N | 090 44 10 W |
| Madison East Shopping Center | Locale | 261 | Dane | 43 06 09 N | 089 20 40 W |
| Madison Elementary School | School | 189 | Manitowoc | 44 06 02 N | 087 39 06 W |
| Madison Elementary School | School | 229 | Milwaukee | 43 01 10 N | 088 02 33 W |
| Madison Elementary School | School | 337 | Portage | 44 32 04 N | 089 35 20 W |
| Madison Elementary School | School | 259 | Rock | 42 41 02 N | 089 02 52 W |
| Madison Elementary School | School | 376 | Wood | 44 40 07 N | 090 09 37 W |
| Madison Medical Center | Hospital | 264 | Dane | 43 03 55 N | 089 24 05 W |
| Madison Memorial School | School | 320 | Dane | 43 03 51 N | 089 30 04 W |
| Madison Park | Park | 231 | Milwaukee | 43 01 15 N | 088 02 35 W |
| Madison Park | Park | 223 | Milwaukee | 43 06 09 N | 088 01 58 W |
| Madison Public Library | Building | 270 | Dane | 43 04 24 N | 089 23 14 W |
| Madison School | School | 219 | Milwaukee | 43 06 04 N | 088 02 11 W |
| Madison School (historical) | School | 287 | Fond du Lac | 43 40 37 N | 088 46 29 W |
| Madison School (historical) | School | 437 | Marathon | 45 06 18 N | 089 47 16 W |
| Madison School (historical) | School | 366 | Portage | 44 35 38 N | 089 23 47 W |
| Madison School (historical) | School | 219 | Sheboygan | 43 44 22 N | 087 51 02 W |
| Madison Street School | School | 229 | Sauk | 43 16 22 N | 089 43 33 W |
| Madley School (historical) | School | 337 | Portage | 44 21 48 N | 089 19 27 W |
| Madsen | Populated Place | 247 | Manitowoc | 44 04 52 N | 087 49 19 W |
| Madsen School (historical) | School | 245 | Manitowoc | 44 05 03 N | 087 49 18 W |
| Magdanz Creek | Stream | | Waushara | 44 13 44 N | 089 02 28 W |
| Magee Creek | Stream | | Ashland | 46 09 34 N | 090 31 44 W |
| Magee Elementary School | School | 185 | Manitowoc | 44 09 60 N | 087 34 57 W |
| Magee Elementary School | School | 289 | Waukesha | 42 58 11 N | 088 22 23 W |
| Maggie Creek | Stream | | Washburn | 46 00 30 N | 091 37 40 W |
| Maggies Island | Island | 195 | Marinette | 45 19 54 N | 087 39 22 W |
| Magnolia | Populated Place | 286 | Rock | 42 42 57 N | 089 17 19 W |
| Magnor Lake | Lake | 363 | Polk | 45 19 23 N | 092 12 15 W |
| Magruder G5279 Dam | Dam | 296 | Sauk | 43 37 06 N | 090 14 06 W |
| Maiben Cemetery | Cemetery | 248 | Vernon | 43 26 43 N | 090 44 53 W |
| Maiden Creek | Stream | | Price | 45 47 09 N | 090 33 02 W |
| Maiden Lake | Lake | 366 | Oconto | 45 16 13 N | 088 32 04 W |
| Maiden Lane School (historical) | School | 248 | Dodge | 43 18 13 N | 088 52 40 W |
| Maiden Rock | Pillar | 295 | Iowa | 43 05 31 N | 090 16 40 W |
| Maiden Rock | Populated Place | 211 | Pierce | 44 33 39 N | 092 18 35 W |
| Maiden Rock | Summit | 224 | Jackson | 44 04 51 N | 091 02 57 W |
| Maiden Rock | Summit | 217 | Pepin | 44 30 04 N | 092 17 22 W |
| Maiden Rock Bluff State Natural Area | Park | 45 | Pepin | 44 30 17 N | 092 17 08 W |
| Maiden Rock Cemetery | Cemetery | 245 | Pierce | 44 34 19 N | 092 19 17 W |
| Main Creek | Stream | | Rusk | 45 17 50 N | 091 04 33 W |
| Main Ditch | Canal | 261 | Dodge | 43 32 01 N | 088 38 38 W |
| Main Ditch | Canal | 277 | Sheboygan | 43 50 28 N | 088 05 58 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 |
| Main Street Commercial Historic District | Park | 254 | Jefferson | 43 11 39 N | 088 43 19 W |
| Maine Cemetery | Cemetery | 331 | Portage | 44 25 57 N | 089 31 43 W |
| Maine Elementary School | School | 433 | Marathon | 45 01 37 N | 089 41 31 W |
| Maine School (historical) | School | 331 | Portage | 44 25 31 N | 089 31 44 W |
| Maine State Wildlife Area | Park | 236 | Outagamie | 44 33 03 N | 088 31 59 W |
| Mainline Creek | Stream | | Forest | 45 55 11 N | 088 42 21 W |
| Mainline Lake | Lake | 489 | Forest | 45 54 39 N | 088 44 30 W |
| Majestic Building | Building | 180 | Milwaukee | 43 02 19 N | 087 54 51 W |
| Majestic Island | Island | 265 | Dodge | 43 27 34 N | 088 52 13 W |
| Makholm Lake | Lake | 251 | Oconto | 45 01 42 N | 088 18 02 W |
| Maki Lake | Lake | 473 | Iron | 46 17 28 N | 090 31 39 W |
| Malby Lake | Lake | 483 | Oneida | 45 52 41 N | 089 46 20 W |
| Malcolm Bay | Bay | 243 | Green Lake | 43 49 44 N | 088 59 32 W |
| Mallard Flowage | Reservoir | 347 | Chippewa | 45 12 44 N | 091 01 51 W |
| Mallard Flowage | Reservoir | 293 | Jackson | 44 17 29 N | 090 35 23 W |
| Mallard Flowage 0.5 | Reservoir | 347 | Chippewa | 45 12 54 N | 091 01 48 W |
| Mallard Flowage 1 | Reservoir | 293 | Jackson | 44 17 30 N | 090 35 24 W |
| Mallard Hole Lake | Lake | 299 | Fond du Lac | 43 35 55 N | 088 10 21 W |
| Mallard Lake | Lake | 300 | Burnett | 45 53 57 N | 092 10 37 W |
| Mallard Lake | Lake | 374 | Polk | 45 33 47 N | 092 25 37 W |
| Mallard Lake | Lake | 418 | Washburn | 45 44 60 N | 091 32 51 W |
| Mallard Slough | Lake | 297 | Burnett | 45 49 10 N | 092 17 15 W |
| Mallory School (historical) | School | 341 | Portage | 44 31 32 N | 089 44 48 W |
| Malloy Lake | Lake | 297 | Washington | 43 13 29 N | 088 22 03 W |
| Malloy School (historical) | School | 356 | Portage | 44 34 11 N | 089 18 33 W |
| Mallwood | Populated Place | 256 | Rock | 42 50 12 N | 089 00 15 W |
| Malone | Populated Place | 294 | Fond du Lac | 43 51 37 N | 088 16 53 W |
| Malone Elementary School | School | 257 | Pierce | 44 45 15 N | 092 47 34 W |
| Malone Lake | Lake | 279 | Shawano | 44 52 53 N | 088 44 20 W |
| Malt House Playgrounds | Park | 277 | Dodge | 43 30 02 N | 088 32 53 W |
| Malvern | Populated Place | 479 | Oneida | 45 36 28 N | 089 17 06 W |
| Malviney Creek | Stream | | Sawyer | 45 41 50 N | 091 29 44 W |
| Malzon Bay | Bay | 262 | Dodge | 43 30 10 N | 088 37 00 W |
| Mamie Lake | Lake | 513 | Vilas | 46 11 27 N | 089 23 50 W |
| Mammoth Spring | Spring | 272 | Waukesha | 43 07 42 N | 088 12 58 W |
| Mamre Cemetery | Cemetery | 268 | Dunn | 44 52 47 N | 092 00 19 W |
| Mamre Church | Church | 244 | Jefferson | 43 10 20 N | 088 50 34 W |
| Man Mound Park | Park | 293 | Sauk | 43 29 18 N | 089 40 19 W |
| Man Mound School (historical) | School | 287 | Sauk | 43 29 19 N | 089 40 14 W |
| Manacke Creek | Stream | | Lincoln | 45 16 01 N | 089 32 02 W |
| Manakiki Lake 135 | Reservoir | 329 | Wood | 44 30 42 N | 090 08 18 W |
| Manawa | Populated Place | 249 | Waupaca | 44 27 52 N | 088 55 11 W |
| Manawa 1899C177 Dam | Dam | 245 | Waupaca | 44 27 60 N | 088 55 06 W |
| Manawa Elementary School | School | 265 | Waupaca | 44 27 36 N | 088 54 43 W |
| Manawa Middle School | School | 251 | Waupaca | 44 27 39 N | 088 55 21 W |
| Manawa Pond 275 | Reservoir | 245 | Waupaca | 44 27 60 N | 088 55 06 W |
| Manchester | Populated Place | 268 | Green Lake | 43 41 26 N | 089 02 54 W |
| Manchester 1852C403 Dam | Dam | 267 | Green Lake | 43 41 24 N | 089 02 54 W |
| Manchester Millpond 72 | Reservoir | 267 | Green Lake | 43 41 24 N | 089 02 54 W |
| Mandale Park | Park | 262 | Rock | 42 42 11 N | 088 59 12 W |
| Mandt Park | Park | 257 | Dane | 42 54 44 N | 089 12 57 W |
| Manitawoc Yacht Club | Locale | 179 | Manitowoc | 44 06 17 N | 087 38 53 W |
| Manitoba Elementary School | School | 208 | Milwaukee | 42 59 29 N | 087 57 57 W |
| Manitoba Park | Park | 219 | Milwaukee | 42 59 28 N | 087 58 32 W |
| Manitou Camp | Locale | 188 | Ashland | 46 57 19 N | 090 40 37 W |
| Manitou Falls Church | Church | 314 | Douglas | 46 31 57 N | 092 05 56 W |
| Manitou Island | Island | 206 | Ashland | 46 57 60 N | 090 39 21 W |
| Manitou Lake | Lake | 269 | Polk | 45 31 56 N | 092 39 44 W |
| Manitou Lake School | School | 296 | Polk | 45 32 05 N | 092 39 60 W |
| Manitou Park | Park | 182 | Manitowoc | 44 06 15 N | 087 40 52 W |
| Manitowish | Populated Place | 485 | Iron | 46 07 59 N | 090 00 49 W |