Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Nine Mile Forest | Woods | 385 | Marathon | 44 53 53 N | 089 42 20 W |
| Nine Mile Island State Natural Area | Park | 45 | Pepin | 44 40 43 N | 091 55 28 W |
| Nine Mile Recreation Area | Park | 389 | Marathon | 44 53 53 N | 089 42 50 W |
| Nine Springs Creek | Stream | | Dane | 43 02 28 N | 089 19 44 W |
| Ninemile Creek | Stream | | Eau Claire | 44 48 47 N | 091 22 06 W |
| Ninemile Creek | Stream | | Eau Claire | 44 49 17 N | 091 20 11 W |
| Ninemile Creek | Stream | | Langlade | 45 14 20 N | 088 47 54 W |
| Ninemile Creek | Stream | | Oneida | 45 53 33 N | 089 08 16 W |
| Ninemile Creek | Stream | | Price | 45 41 33 N | 090 34 02 W |
| Ninemile Creek | Stream | | Price | 45 51 10 N | 090 35 59 W |
| Ninemile Hill | Summit | 459 | Langlade | 45 13 57 N | 088 46 17 W |
| Ninemile Hill | Summit | 454 | Lincoln | 45 14 54 N | 089 47 22 W |
| Ninemile Island | Island | 215 | Pepin | 44 40 42 N | 091 55 35 W |
| Ninemile Rapids | Rapids | 417 | Langlade | 45 14 17 N | 088 47 46 W |
| Ninemile Slough | Stream | | Pepin | 44 40 14 N | 091 57 22 W |
| Ninemile Swamp | Swamp | 359 | Marathon | 44 52 40 N | 089 41 32 W |
| Nineteen Hundred School (historical) | School | 281 | St. Croix | 44 53 53 N | 092 35 20 W |
| Nineth Street School | School | 206 | Milwaukee | 43 03 12 N | 087 55 23 W |
| Ninety Fifth Street School | School | 227 | Milwaukee | 43 05 05 N | 088 01 50 W |
| Nineweb Lake | Lake | 529 | Vilas | 46 06 04 N | 089 25 21 W |
| Ninth Ward School | School | 280 | Chippewa | 44 55 13 N | 091 22 57 W |
| Niobe Lake | Lake | 401 | Langlade | 45 07 20 N | 088 54 13 W |
| Nippersink School (historical) | School | 254 | Dunn | 44 46 57 N | 092 05 31 W |
| Nishan Park | Park | 280 | Sauk | 43 32 33 N | 089 59 08 W |
| Nix Corner | Populated Place | 326 | Eau Claire | 44 38 48 N | 091 20 50 W |
| Nixon Creek | Stream | | Vilas | 46 07 06 N | 089 35 02 W |
| Nixon Lake | Lake | 497 | Vilas | 46 05 55 N | 089 33 10 W |
| Nixon Park | Park | 280 | Waukesha | 43 06 05 N | 088 20 43 W |
| Nixon Springs | Lake | 406 | Langlade | 45 08 32 N | 088 54 56 W |
| No Bottom Lake | Lake | 344 | Florence | 45 44 06 N | 088 04 48 W |
| No Mans Creek | Stream | | Vilas | 46 17 10 N | 089 53 24 W |
| No Mans Lake | Lake | 252 | Oconto | 45 02 51 N | 088 17 47 W |
| No Mans Lake | Lake | 498 | Vilas | 46 16 60 N | 089 53 57 W |
| No Mans Lake | Lake | 305 | Washburn | 46 07 09 N | 092 02 57 W |
| No Name Creek | Stream | | Dodge | 43 28 07 N | 088 23 12 W |
| Noble Lake | Lake | 436 | Sawyer | 46 08 21 N | 090 58 34 W |
| Noble School (historical) | School | 306 | Chippewa | 45 02 45 N | 091 29 39 W |
| Nobleton | Populated Place | 373 | Washburn | 45 40 45 N | 091 42 10 W |
| Noboken Lake | Lake | 510 | Langlade | 45 20 08 N | 089 08 46 W |
| Nocquebay Lake 118 | Reservoir | 210 | Marinette | 45 14 18 N | 087 56 12 W |
| Noffke Shopping Center | Locale | 231 | Winnebago | 44 02 06 N | 088 31 38 W |
| Noisy Creek | Stream | | Lincoln | 45 33 21 N | 089 28 31 W |
| Noisy Creek | Stream | | Marathon | 44 49 28 N | 090 05 30 W |
| Nokomis Lake | Lake | 479 | Iron | 46 06 29 N | 090 09 58 W |
| Nokomis School (historical) | School | 471 | Oneida | 45 37 04 N | 089 42 09 W |
| Nokomis Townhall | Building | 458 | Oneida | 45 35 08 N | 089 43 26 W |
| Nola Cemetery | Cemetery | 454 | Price | 45 55 17 N | 090 26 26 W |
| Nolan Creek | Stream | | Dodge | 43 19 13 N | 088 56 18 W |
| Noland Zoology Building | Building | 265 | Dane | 43 04 17 N | 089 24 17 W |
| Nona Lake | Lake | 437 | Taylor | 45 11 34 N | 090 37 43 W |
| Nora | Populated Place | 291 | Dane | 43 01 51 N | 089 09 00 W |
| Nora Cemetery | Cemetery | 348 | Barron | 45 31 13 N | 091 44 16 W |
| Norby Lake | Lake | 285 | Waupaca | 44 29 36 N | 089 07 04 W |
| Nordby Dam | Dam | 342 | Barron | 45 13 30 N | 092 02 13 W |
| Norden School (historical) | School | 298 | Buffalo | 44 32 20 N | 091 32 58 W |
| Norden Trinity Church | Church | 281 | Buffalo | 44 32 38 N | 091 31 47 W |
| Norlin School (historical) | School | 550 | Price | 45 25 32 N | 090 11 11 W |
| Norlings Landing Field (historical) | Airport | 248 | Adams | 43 38 49 N | 089 36 37 W |
| Norma | Populated Place | 280 | Chippewa | 44 57 06 N | 091 22 11 W |
| Norma Lake | Lake | 488 | Iron | 46 01 13 N | 090 09 35 W |
| Norman | Populated Place | 221 | Kewaunee | 44 22 15 N | 087 36 12 W |
| Norman Cemetery | Cemetery | 210 | Kewaunee | 44 23 22 N | 087 37 25 W |
| Norman Creek | Stream | | Iron | 46 20 36 N | 090 24 00 W |
| Norman Rockwell Museum | Building | 272 | Sauk | 43 31 52 N | 090 00 22 W |
| Norman Valley | Valley | | Richland | 43 30 28 N | 090 24 08 W |
| Normington E7395 Dam | Dam | 297 | Jackson | 44 21 12 N | 090 32 18 W |
| Norrie | Populated Place | 392 | Marathon | 44 53 08 N | 089 15 15 W |
| Norrie Brook | Stream | | Marathon | 44 52 05 N | 089 13 02 W |
| Norrie Lake | Lake | 392 | Marathon | 44 53 05 N | 089 15 48 W |
| Norris Hollow | Valley | | Vernon | 43 31 10 N | 090 43 46 W |
| Norris Point | Cape | 271 | Waupaca | 44 20 13 N | 089 09 19 W |
| Norris School | School | 268 | Waukesha | 42 51 19 N | 088 14 35 W |
| Norseville School (historical) | School | 292 | Eau Claire | 44 36 32 N | 091 22 20 W |
| Norske | Populated Place | 332 | Waupaca | 44 39 09 N | 089 12 30 W |
| North Almond Cemetery | Cemetery | 352 | Portage | 44 18 06 N | 089 25 01 W |
| North and South Turtle Lakes 25 | Reservoir | 46 | Vilas | 46 13 42 N | 090 54 06 W |
| North Andover | Populated Place | 266 | Grant | 42 48 56 N | 090 57 57 W |
| North Arpin Church | Church | 361 | Wood | 44 34 10 N | 090 01 50 W |
| North Arpin School (historical) | School | 364 | Wood | 44 34 37 N | 090 01 33 W |
| North Asylum Bay | Bay | 228 | Winnebago | 44 04 48 N | 088 30 06 W |
| North Auburndale Cemetery | Cemetery | 375 | Wood | 44 40 04 N | 090 01 28 W |
| North Bass Lake | Lake | 494 | Iron | 46 11 43 N | 089 57 46 W |
| North Bass Lake | Lake | 275 | St. Croix | 45 05 57 N | 092 38 35 W |
| North Bass Lake School (historical) | School | 291 | St. Croix | 45 05 35 N | 092 39 60 W |
| North Bay | Bay | 176 | Door | 45 08 09 N | 087 03 36 W |
| North Bay | Populated Place | 177 | Door | 45 08 46 N | 087 04 58 W |
| North Bay | Populated Place | 184 | Racine | 42 45 53 N | 087 46 47 W |
| North Bay Shore Recreation Area | Park | 178 | Oconto | 44 57 48 N | 087 46 51 W |
| North Bay State Natural Area | Park | | Door | 45 09 23 N | 087 04 57 W |
| North Beach School | School | 248 | Shawano | 44 49 44 N | 088 31 41 W |
| North Bear Creek | Stream | | Vernon | 43 34 20 N | 090 36 40 W |
| North Bear School (historical) | School | 267 | Vernon | 43 34 46 N | 090 34 59 W |
| North Beaver Creek Lutheran Church | Church | 260 | Trempealeau | 44 12 30 N | 091 10 02 W |
| North Bend | Populated Place | 219 | Jackson | 44 05 29 N | 091 07 01 W |
| North Bloomfield | Populated Place | 262 | Walworth | 42 34 28 N | 088 21 18 W |
| North Bluff | Summit | 349 | Wood | 44 19 19 N | 090 10 55 W |
| North Branch | Populated Place | 301 | Jackson | 44 26 51 N | 090 59 57 W |
| North Branch Ashwaubenon Creek | Stream | | Brown | 44 23 45 N | 088 10 19 W |
| North Branch Beaver Brook | Stream | | Polk | 45 21 06 N | 092 15 26 W |
| North Branch Beaver Creek | Stream | | Marinette | 45 07 42 N | 087 59 58 W |
| North Branch Black Valley | Valley | | Monroe | 43 47 14 N | 090 29 45 W |
| North Branch Cemetery | Cemetery | 250 | Buffalo | 44 30 47 N | 091 53 28 W |
| North Branch Cemetery | Cemetery | 326 | Jackson | 44 34 55 N | 091 04 49 W |
| North Branch Copper Creek | Stream | | Crawford | 43 18 51 N | 091 00 14 W |
| North Branch Crawfish River | Stream | | Columbia | 43 22 15 N | 089 02 27 W |
| North Branch Douglas Creek | Stream | | Jackson | 44 10 26 N | 091 01 26 W |
| North Branch Duck Creek | Stream | | Columbia | 43 29 54 N | 089 17 44 W |
| North Branch Elk Creek | Stream | | Trempealeau | 44 27 14 N | 091 18 30 W |
| North Branch Embarrass River | Stream | | Shawano | 44 44 52 N | 088 50 03 W |
| North Branch Genesee Creek | Stream | | Waukesha | 42 57 53 N | 088 21 51 W |