Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Columbia Heights | Ridge | 355 | Pepin | 44 34 15 N | 092 03 54 W |
| Columbia Hospital | Hospital | 208 | Milwaukee | 43 04 42 N | 087 53 01 W |
| Columbia Lake | Lake | 271 | Waupaca | 44 19 48 N | 089 10 28 W |
| Columbia Mills Dam | Dam | 237 | Ozaukee | 43 18 00 N | 087 58 30 W |
| Columbia Park | Park | 229 | Fond du Lac | 43 54 55 N | 088 19 41 W |
| Columbia Park | Park | 230 | Winnebago | 44 10 55 N | 088 27 25 W |
| Columbia Park | Park | 395 | Wood | 44 40 12 N | 090 10 28 W |
| Columbia School (historical) | School | 308 | Wood | 44 18 51 N | 089 48 36 W |
| Columbus | Populated Place | 259 | Columbia | 43 20 17 N | 089 00 55 W |
| Columbus Community Hospital Heliport | Airport | 262 | Columbia | 43 19 22 N | 089 02 03 W |
| Columbus Creek | Stream | | Jackson | 44 12 36 N | 091 08 19 W |
| Columbus Elementary School | School | 190 | Kenosha | 42 34 33 N | 087 50 22 W |
| Columbus Elementary School | School | 241 | Outagamie | 44 16 12 N | 088 24 22 W |
| Columbus Hall | Building | 314 | Walworth | 42 40 17 N | 088 32 42 W |
| Columbus High School | School | 260 | Columbia | 43 19 37 N | 089 01 13 W |
| Columbus High School | School | 400 | Wood | 44 39 51 N | 090 11 34 W |
| Columbus Lake | Lake | 496 | Oneida | 45 50 16 N | 089 15 02 W |
| Columbus Lake | Lake | 189 | Vernon | 43 20 55 N | 091 10 42 W |
| Columbus Middle School | School | 257 | Columbia | 43 20 12 N | 089 01 10 W |
| Columbus Park | Park | 303 | Fond du Lac | 43 35 43 N | 088 16 10 W |
| Columbus Park | Park | 189 | Kenosha | 42 35 09 N | 087 49 59 W |
| Columbus Park | Park | 213 | Milwaukee | 43 06 08 N | 088 00 11 W |
| Columbus School (historical) | School | 366 | Barron | 45 21 36 N | 091 58 14 W |
| Columbus School (historical) | School | 180 | Marinette | 44 59 28 N | 087 38 01 W |
| Colwell Cemetery | Cemetery | 296 | Jackson | 44 17 02 N | 091 02 05 W |
| Combined Locks | Populated Place | 221 | Outagamie | 44 15 57 N | 088 18 51 W |
| Combined Locks Dam | Dam | 204 | Outagamie | 44 16 30 N | 088 18 06 W |
| Combined Locks Post Office | School | 220 | Outagamie | 44 15 57 N | 088 18 49 W |
| Comet Creek | Stream | | Waupaca | 44 37 16 N | 089 07 14 W |
| Comfort | Populated Place | 251 | Dunn | 44 46 30 N | 092 02 08 W |
| Cominski Creek | Stream | | Iron | 46 28 32 N | 090 12 07 W |
| Commerce Building | Building | 180 | Milwaukee | 43 02 24 N | 087 54 57 W |
| Commons South Park | Park | 253 | Rock | 42 38 47 N | 089 02 41 W |
| Commonwealth | Populated Place | 402 | Florence | 45 54 49 N | 088 14 24 W |
| Communication Arts Center | Building | 333 | Portage | 44 31 30 N | 089 34 10 W |
| Community Baptist Church | Church | 188 | Kenosha | 42 35 33 N | 087 49 50 W |
| Community Baptist Church | Church | 290 | Walworth | 42 36 04 N | 088 42 22 W |
| Community Bible Church | Church | 196 | Manitowoc | 44 05 37 N | 087 40 54 W |
| Community Bible Church | Church | 363 | Sawyer | 46 00 20 N | 091 28 47 W |
| Community Bible Church | Church | 501 | Vilas | 45 54 59 N | 089 14 51 W |
| Community Cemetery | Cemetery | 238 | Outagamie | 44 20 14 N | 088 21 11 W |
| Community Chapel Church (historical) | Church | 181 | Manitowoc | 44 08 32 N | 087 34 55 W |
| Community Christian Academy | School | 313 | Wood | 44 25 43 N | 089 46 40 W |
| Community Christian Church | Church | 262 | Jackson | 44 17 51 N | 090 51 25 W |
| Community Christian Church | Church | 197 | La Crosse | 43 51 03 N | 091 14 04 W |
| Community Church | Church | 184 | Brown | 44 27 57 N | 087 58 58 W |
| Community Church | Church | 215 | Marinette | 45 19 40 N | 087 43 28 W |
| Community Church | Church | 264 | Oconto | 45 00 05 N | 088 19 30 W |
| Community Church | Church | 335 | Portage | 44 32 17 N | 089 32 51 W |
| Community Church | Church | 219 | Racine | 42 47 09 N | 087 54 40 W |
| Community Church | Church | 283 | Washington | 43 25 26 N | 088 11 41 W |
| Community Church of Christ | Church | 195 | Sheboygan | 43 46 48 N | 087 43 07 W |
| Community Church of Nazarene | Church | 269 | Sauk | 43 31 57 N | 090 00 52 W |
| Community Congregational Church | Church | 210 | Kewaunee | 44 27 18 N | 087 30 22 W |
| Community Memorial Hospital | Hospital | 219 | Oconto | 44 51 53 N | 088 07 39 W |
| Community Memorial Hospital Heliport | Airport | 219 | Oconto | 44 51 54 N | 088 07 42 W |
| Community Park | Park | 509 | Vilas | 46 02 60 N | 089 15 08 W |
| Community Reformed Church | Church | 284 | Walworth | 42 37 51 N | 088 38 36 W |
| Community United Methodist Church | Church | 234 | Fond du Lac | 43 48 29 N | 088 29 01 W |
| Como | Populated Place | 278 | Walworth | 42 36 44 N | 088 28 56 W |
| Como Creek | Stream | | Chippewa | 45 06 33 N | 091 30 58 W |
| Como Creek | Stream | | Walworth | 42 37 10 N | 088 23 48 W |
| Company Lake | Lake | 244 | Oconto | 44 54 41 N | 088 11 42 W |
| Comstock | Populated Place | 392 | Barron | 45 28 40 N | 092 04 31 W |
| Comstock Bog-Meadow State Natural Area | Park | 44 | Marquette | 43 52 50 N | 089 17 34 W |
| Comstock Cemetery | Cemetery | 393 | Barron | 45 28 40 N | 092 04 33 W |
| Comstock Cemetery | Cemetery | 276 | Columbia | 43 36 52 N | 089 18 26 W |
| Comstock Lake | Lake | 246 | Marquette | 43 53 03 N | 089 16 22 W |
| Comstock Nursing Home | Building | 201 | Milwaukee | 43 00 44 N | 087 57 09 W |
| Comus Lake | Reservoir | 271 | Walworth | 42 38 13 N | 088 38 58 W |
| Concord | Populated Place | 259 | Jefferson | 43 04 10 N | 088 35 55 W |
| Concord Cemetery | Cemetery | 320 | Richland | 43 27 54 N | 090 13 41 W |
| Concord Cemetery | Cemetery | 225 | Sheboygan | 43 47 28 N | 087 49 46 W |
| Concord Center Cemetery | Cemetery | 271 | Jefferson | 43 04 34 N | 088 36 22 W |
| Concord Church (historical) | Church | 43 | Richland | 43 27 56 N | 090 13 38 W |
| Concord Elementary School | School | 264 | Jefferson | 43 04 00 N | 088 35 23 W |
| Concord School (historical) | School | 321 | Barron | 45 12 57 N | 091 47 05 W |
| Concord United Methodist Church | Church | 264 | Jefferson | 43 04 02 N | 088 35 24 W |
| Concordia Avenue Evangelical United Brethren Church | Church | 219 | Milwaukee | 43 04 44 N | 087 54 51 W |
| Concordia Cemetery | Cemetery | 253 | Waushara | 44 13 13 N | 088 58 10 W |
| Concordia Cemetery | Cemetery | 262 | Waushara | 44 13 14 N | 088 57 16 W |
| Concordia Evangelical Lutheran Church | Church | 245 | Eau Claire | 44 48 59 N | 091 30 02 W |
| Concordia Lutheran Church | Church | 196 | Douglas | 46 43 05 N | 092 06 02 W |
| Concordia Lutheran School | School | 197 | Racine | 42 41 26 N | 087 49 32 W |
| Concordia Park | Park | 228 | Milwaukee | 43 04 47 N | 088 01 17 W |
| Concordia Sub-Station | Locale | 209 | Milwaukee | 43 04 44 N | 087 57 45 W |
| Concordia United Methodist Church | Church | 238 | Sauk | 43 17 30 N | 089 43 31 W |
| Concordia University | School | 213 | Milwaukee | 43 02 34 N | 087 57 14 W |
| Concrete School (historical) | School | 239 | Douglas | 46 34 34 N | 092 03 60 W |
| Coney River | Stream | | Washington | 43 15 42 N | 088 14 54 W |
| Conference Point | Cape | 265 | Walworth | 42 33 54 N | 088 32 32 W |
| Congar School | School | 424 | Monroe | 43 53 05 N | 090 36 59 W |
| Congregation Emanu-el | Church | 208 | Milwaukee | 43 04 28 N | 087 52 47 W |
| Congregation Gnesses Israel Temple | Church | 181 | Brown | 44 30 18 N | 087 59 49 W |
| Congregational United Church of Christ | Church | 279 | Rock | 42 46 46 N | 089 18 06 W |
| Congregational United Church of Christ | Church | 256 | Walworth | 42 50 03 N | 088 44 13 W |
| Congress Avenue Athletic Park | Park | 233 | Winnebago | 44 02 06 N | 088 32 57 W |
| Congress Elementary School | School | 198 | Milwaukee | 43 05 58 N | 087 58 44 W |
| Conkle Cemetery | Cemetery | 245 | Richland | 43 21 56 N | 090 32 03 W |
| Conkle School (historical) | School | 241 | Richland | 43 21 56 N | 090 32 09 W |
| Conlan Creek | Stream | | Clark | 44 30 38 N | 090 37 59 W |
| Conley E3663 1 Dam | Dam | 344 | Chippewa | 45 12 60 N | 091 18 31 W |
| Conley Lake | Lake | 430 | Ashland | 46 16 21 N | 090 42 16 W |
| Conley Lewis Creek | Stream | | Iowa | 42 53 46 N | 089 58 39 W |
| Conley School (historical) | School | 299 | Eau Claire | 44 40 31 N | 091 29 55 W |
| Conley School (historical) | School | 398 | Vernon | 43 25 47 N | 090 56 39 W |
| Conner Hill | Summit | 329 | Sheboygan | 43 41 29 N | 088 07 56 W |
| Conner Park | Park | 378 | Wood | 44 39 43 N | 090 08 55 W |
| Conners Lake | Lake | 297 | Burnett | 45 54 42 N | 092 18 16 W |
| Connor Forest Industries 1897C211 Dam | Dam | 476 | Forest | 45 33 60 N | 088 40 42 W |