Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Connor Lake | Lake | 378 | Bayfield | 46 17 41 N | 091 26 52 W |
| Connors Creek | Stream | | Dunn | 45 12 27 N | 092 07 13 W |
| Connors Creek | Stream | | Sawyer | 45 44 04 N | 090 46 31 W |
| Connors Lake | Lake | 424 | Sawyer | 45 45 05 N | 090 44 15 W |
| Connors Lake Lookout Tower | Tower | 452 | Sawyer | 45 45 30 N | 090 42 50 W |
| Connors Point | Cape | 186 | Douglas | 46 44 48 N | 092 06 01 W |
| Connors Spring | Spring | 427 | Sawyer | 45 43 36 N | 090 44 50 W |
| Connorsville | Populated Place | 305 | Dunn | 45 08 10 N | 092 05 42 W |
| Conover | Populated Place | 505 | Vilas | 46 03 17 N | 089 15 28 W |
| Conover Church | Church | 519 | Vilas | 46 01 38 N | 089 15 35 W |
| Conpassion Fellowship Church | Church | 368 | Marathon | 44 57 38 N | 089 38 22 W |
| Conrath | Populated Place | 346 | Rusk | 45 23 10 N | 091 02 18 W |
| Conrod School (historical) | School | 284 | Brown | 44 20 33 N | 087 59 20 W |
| Conroy Ford 3WR374 Dam | Dam | 303 | Washburn | 45 59 12 N | 091 59 25 W |
| Conroy School (historical) | School | 311 | Pierce | 44 40 29 N | 092 24 22 W |
| Consolidated County Park | Park | 326 | Portage | 44 29 28 N | 089 35 12 W |
| Consolidated Lookout Tower | Tower | 487 | Forest | 45 39 34 N | 088 44 05 W |
| Consolidated School | School | 280 | Rock | 42 44 36 N | 089 03 04 W |
| Constance Lake | Lake | 506 | Vilas | 46 15 54 N | 089 54 32 W |
| Constellation Lake | Lake | 434 | Price | 45 49 03 N | 090 40 35 W |
| Convent of the Immaculate Heart of Mary | Church | 372 | Marathon | 44 58 13 N | 089 39 00 W |
| Converse Elementary School | School | 248 | Rock | 42 31 12 N | 089 03 42 W |
| Conway Park | Park | 366 | Clark | 44 57 11 N | 090 48 25 W |
| Conway Valley | Valley | | Crawford | 43 23 34 N | 090 52 42 W |
| Cook Creek | Stream | | Monroe | 43 43 49 N | 090 35 50 W |
| Cook Creek | Stream | | Vernon | 43 32 50 N | 090 49 11 W |
| Cook Lake | Lake | 493 | Forest | 45 27 07 N | 088 50 57 W |
| Cook Lake | Lake | 478 | Oneida | 45 34 55 N | 089 29 09 W |
| Cook Lake | Lake | 500 | Oneida | 45 45 41 N | 089 13 55 W |
| Cook Rutledge Historical Mansion | Building | 275 | Chippewa | 44 55 58 N | 091 23 60 W |
| Cook School | School | 312 | Vernon | 43 32 31 N | 090 50 51 W |
| Cook Valley | Valley | | Monroe | 43 44 02 N | 090 35 50 W |
| Cook Valley School | School | 320 | Monroe | 43 46 22 N | 090 37 53 W |
| Cooke Cemetery | Cemetery | 289 | Buffalo | 44 26 36 N | 091 34 20 W |
| Cooke Park | Park | 181 | Brown | 44 28 57 N | 088 02 50 W |
| Cooke Valley | Valley | | Buffalo | 44 26 49 N | 091 34 23 W |
| Cooks Lake | Lake | 502 | Vilas | 45 58 32 N | 089 18 51 W |
| Cooks Lake | Lake | 256 | Waushara | 44 06 43 N | 089 09 00 W |
| Cooks School (historical) | School | 313 | Vernon | 43 32 32 N | 090 50 54 W |
| Cooks Valley Cemetery | Cemetery | 346 | Chippewa | 45 02 16 N | 091 35 35 W |
| Cooks Valley Church (historical) | Church | 347 | Chippewa | 45 02 16 N | 091 35 33 W |
| Cooks Valley Townhall | Building | 335 | Chippewa | 45 04 13 N | 091 35 26 W |
| Cooksville | Populated Place | 269 | Rock | 42 50 07 N | 089 14 26 W |
| Cooksville Lutheran Church | Church | 275 | Rock | 42 49 59 N | 089 14 14 W |
| Cookwood Park | Park | 204 | Racine | 42 43 38 N | 087 49 59 W |
| Cooley Lake | Lake | 230 | Eau Claire | 44 45 01 N | 091 34 38 W |
| Cooley Lake | Lake | 250 | Oconto | 45 01 33 N | 088 16 42 W |
| Cooley Lake | Lake | 458 | Price | 45 55 40 N | 090 31 42 W |
| Cooley Valley | Valley | | Crawford | 43 23 39 N | 091 07 21 W |
| Cooley Valley School (historical) | School | 220 | Vernon | 43 25 24 N | 091 07 38 W |
| Coolidge (historical) | Populated Place | 458 | Price | 45 48 42 N | 090 24 29 W |
| Coolidge Elementary School | School | 231 | Winnebago | 44 09 47 N | 088 27 35 W |
| Coolidge Lake | Lake | 455 | Price | 45 48 49 N | 090 24 41 W |
| Coolidge School (historical) | School | 362 | Barron | 45 27 11 N | 091 58 33 W |
| Coomer | Populated Place | 303 | Burnett | 45 44 51 N | 092 15 26 W |
| Coomer School | School | 307 | Burnett | 45 44 55 N | 092 14 53 W |
| Coon Bluff | Cliff | 349 | Sauk | 43 36 21 N | 089 51 39 W |
| Coon Branch | Stream | | Lafayette | 42 30 35 N | 090 23 08 W |
| Coon Creek | Stream | | Dunn | 44 56 42 N | 091 59 07 W |
| Coon Creek | Stream | | Dunn | 44 44 49 N | 091 41 09 W |
| Coon Creek | Stream | | Vernon | 43 38 27 N | 091 13 15 W |
| Coon Creek 14 D 6025 Dam | Dam | 321 | Vernon | 43 41 48 N | 090 52 24 W |
| Coon Creek 15 D 6025 Dam | Dam | 378 | Vernon | 43 40 48 N | 090 52 00 W |
| Coon Creek 16 D 6025 Dam | Dam | 333 | Vernon | 43 40 48 N | 090 51 00 W |
| Coon Creek 17 D 6025 Dam | Dam | 337 | Vernon | 43 41 18 N | 090 50 24 W |
| Coon Creek 21 D6025 Dam | Dam | 333 | Monroe | 43 43 54 N | 090 50 30 W |
| Coon Creek 23 D-6025 Dam | Dam | 333 | Monroe | 43 44 36 N | 090 50 30 W |
| Coon Creek 24 D6025 Dam | Dam | 341 | Monroe | 43 45 24 N | 090 50 24 W |
| Coon Creek 25 D-6025 Dam | Dam | 310 | Monroe | 43 44 60 N | 090 51 42 W |
| Coon Creek 29 D-6025 Dam | Dam | 353 | Monroe | 43 45 60 N | 090 53 48 W |
| Coon Creek 2WP1678 Dam | Dam | 295 | Eau Claire | 44 41 60 N | 091 01 07 W |
| Coon Creek 31 D-6025 Dam | Dam | 373 | Monroe | 43 46 54 N | 090 52 36 W |
| Coon Creek 33 D-6025 Dam | Dam | 346 | La Crosse | 43 46 60 N | 090 54 42 W |
| Coon Creek 35 D-6025 Dam | Dam | 273 | La Crosse | 43 45 24 N | 090 58 12 W |
| Coon Creek 53 D6025 Dam | Dam | 320 | Monroe | 43 44 42 N | 090 54 18 W |
| Coon Creek Cliffs State Natural Area | Park | 44 | Vernon | 43 42 54 N | 090 59 13 W |
| Coon Creek School (historical) | School | 270 | Dunn | 44 41 54 N | 091 39 03 W |
| Coon Fork Barrens State Natural Area | Park | 45 | Eau Claire | 44 42 43 N | 091 01 02 W |
| Coon Fork Creek | Stream | | Eau Claire | 44 43 46 N | 091 01 22 W |
| Coon Fork Lake | Reservoir | 295 | Eau Claire | 44 41 60 N | 091 01 04 W |
| Coon Fork Lake 45 | Reservoir | 295 | Eau Claire | 44 41 60 N | 091 01 07 W |
| Coon Fork Lake County Park | Park | 299 | Eau Claire | 44 41 42 N | 091 00 39 W |
| Coon Gut Creek | Stream | | Eau Claire | 44 43 53 N | 091 02 40 W |
| Coon Lake | Lake | 254 | Menominee | 44 52 20 N | 088 30 27 W |
| Coon Lake | Lake | 254 | Menominee | 44 52 20 N | 088 30 29 W |
| Coon Lake | Lake | 485 | Oneida | 45 41 15 N | 089 32 18 W |
| Coon Lake | Lake | 363 | Polk | 45 39 29 N | 092 27 38 W |
| Coon Lake | Lake | 360 | Rusk | 45 18 05 N | 091 29 08 W |
| Coon Prairie | Flat | 387 | Vernon | 43 37 13 N | 090 53 01 W |
| Coon Prairie Lutheran Cemetery | Cemetery | 385 | Vernon | 43 37 48 N | 090 51 12 W |
| Coon Prairie Lutheran Church | Church | 385 | Vernon | 43 37 53 N | 090 51 10 W |
| Coon Rock | Pillar | 280 | Juneau | 43 47 14 N | 090 06 57 W |
| Coon Rock | Populated Place | 222 | Iowa | 43 09 03 N | 089 59 22 W |
| Coon Valley | Populated Place | 225 | Vernon | 43 42 08 N | 091 00 47 W |
| Coon Valley | Valley | | Grant | 43 04 45 N | 090 32 57 W |
| Coon Valley Elementary School | School | 227 | Vernon | 43 41 58 N | 091 00 53 W |
| Coon Valley School (historical) | School | 234 | Grant | 43 04 28 N | 090 34 20 W |
| Coons Hill | Summit | 267 | St. Croix | 44 58 29 N | 092 44 28 W |
| Coons Ridge Farm | Locale | 326 | Richland | 43 22 54 N | 090 19 48 W |
| Coons School (historical) | School | 293 | Marinette | 45 31 10 N | 088 04 19 W |
| Cooper Avenue Playground | Park | 201 | Sheboygan | 43 46 16 N | 087 44 00 W |
| Cooper Elementary School | School | 197 | Douglas | 46 42 60 N | 092 07 25 W |
| Cooper Elementary School | School | 226 | Milwaukee | 42 57 03 N | 087 56 27 W |
| Cooper Elementary School | School | 250 | Racine | 42 40 40 N | 088 16 59 W |
| Cooper Elementary School | School | 201 | Sheboygan | 43 46 13 N | 087 44 00 W |
| Cooper Hill | Summit | 287 | Richland | 43 14 10 N | 090 33 10 W |
| Cooper Park | Park | 229 | Milwaukee | 43 04 21 N | 088 01 16 W |
| Coopers Shores | Populated Place | 241 | Rock | 42 49 57 N | 089 00 41 W |
| Cooperstown | Populated Place | 238 | Manitowoc | 44 18 46 N | 087 46 28 W |
| Cooperstown School (historical) | School | 245 | Manitowoc | 44 18 47 N | 087 46 53 W |