Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Clifford | Populated Place | 477 | Lincoln | 45 33 19 N | 090 02 36 W |
| Cliffside School (historical) | School | 217 | Vernon | 43 40 26 N | 091 06 08 W |
| Cliffwood Bluff | Cliff | 290 | La Crosse | 43 48 08 N | 091 12 35 W |
| Clifton | Populated Place | 299 | Monroe | 43 52 45 N | 090 21 24 W |
| Clifton Cemetery | Cemetery | 291 | Monroe | 43 52 39 N | 090 20 14 W |
| Clifton Corners School | School | 292 | Monroe | 43 52 34 N | 090 20 35 W |
| Clifton Highlands Golf Course | Locale | 322 | Pierce | 44 47 21 N | 092 44 48 W |
| Clifton Hollow | Valley | | Pierce | 44 49 45 N | 092 45 48 W |
| Clifton Hollow Golf Club | Locale | 263 | Pierce | 44 50 19 N | 092 44 41 W |
| Clifton Hollow School (historical) | School | 275 | Pierce | 44 50 55 N | 092 43 54 W |
| Clifton Ridge | Ridge | 377 | Monroe | 43 49 51 N | 090 21 24 W |
| Clifton Townhall | Building | 284 | Pierce | 44 49 27 N | 092 43 16 W |
| Climax School | School | 304 | Dodge | 43 35 50 N | 088 49 39 W |
| Clinton | Populated Place | 293 | Rock | 42 33 28 N | 088 51 54 W |
| Clinton Cemetery | Cemetery | 308 | Rock | 42 34 04 N | 088 51 32 W |
| Clinton Cemetery | Cemetery | 400 | Vernon | 43 42 39 N | 090 46 12 W |
| Clinton Center School (historical) | School | 378 | Vernon | 43 41 50 N | 090 43 32 W |
| Clinton Corners Cemetery | Cemetery | 297 | Rock | 42 33 14 N | 088 53 31 W |
| Clinton Elementary School | School | 289 | Rock | 42 33 21 N | 088 51 32 W |
| Clinton Heights School (historical) | School | 365 | Barron | 45 23 41 N | 092 00 44 W |
| Clinton Middle School | School | 289 | Rock | 42 33 23 N | 088 51 38 W |
| Clinton Ridge | Ridge | 396 | Vernon | 43 41 53 N | 090 46 57 W |
| Clinton School (historical) | School | 398 | Vernon | 43 42 39 N | 090 46 14 W |
| Clinton Village Hall | Building | 289 | Rock | 42 33 19 N | 088 51 42 W |
| Clinton Water Works | Locale | 288 | Rock | 42 33 11 N | 088 51 58 W |
| Clintonville | Populated Place | 248 | Waupaca | 44 37 14 N | 088 45 44 W |
| Clintonville 2WP268 Dam | Dam | 244 | Waupaca | 44 37 24 N | 088 45 42 W |
| Clintonville Community Hospital Heliport | Airport | 254 | Waupaca | 44 37 28 N | 088 45 28 W |
| Clintonville High School | School | 262 | Waupaca | 44 37 58 N | 088 45 12 W |
| Clintonville Middle School | School | 250 | Waupaca | 44 37 13 N | 088 45 50 W |
| Clintonville Municipal Airport | Airport | 248 | Waupaca | 44 36 49 N | 088 43 52 W |
| Clintonville Post Office | Post Office | 246 | Waupaca | 44 37 23 N | 088 45 35 W |
| Clipperdale School (historical) | School | 352 | Pierce | 44 40 09 N | 092 09 21 W |
| Clockmaker School (historical) | School | 365 | Vernon | 43 40 07 N | 090 49 45 W |
| Close Slu | Gut | 210 | Polk | 45 21 17 N | 092 41 13 W |
| Cloud Lake | Lake | 396 | Forest | 45 26 49 N | 088 26 19 W |
| Clough Island | Island | 194 | Douglas | 46 42 10 N | 092 11 21 W |
| Clover | Populated Place | 205 | Manitowoc | 44 02 17 N | 087 42 06 W |
| Clover Belt School | School | 467 | Lincoln | 45 26 16 N | 089 36 29 W |
| Clover Belt School (historical) | School | 469 | Lincoln | 45 26 18 N | 089 36 32 W |
| Clover Belt School (historical) | School | 426 | Marathon | 44 58 10 N | 089 33 15 W |
| Clover Blossom School (historical) | School | 248 | Outagamie | 44 29 21 N | 088 43 29 W |
| Clover Creek | Stream | | Price | 45 54 04 N | 090 11 52 W |
| Clover Lake | Lake | 336 | Polk | 45 23 50 N | 092 22 40 W |
| Clover Lawn School (historical) | School | 241 | Outagamie | 44 31 01 N | 088 42 12 W |
| Clover Lawn School (historical) | School | 301 | St. Croix | 44 55 35 N | 092 38 01 W |
| Clover Leaf School (historical) | School | 366 | Barron | 45 18 35 N | 092 03 48 W |
| Clover Leaf School (historical) | School | 350 | Rusk | 45 24 16 N | 091 04 08 W |
| Clover Nook School (historical) | School | 427 | Clark | 44 56 38 N | 090 23 50 W |
| Clover Nook School (historical) | School | 250 | Oconto | 44 57 39 N | 088 15 55 W |
| Clover Valley Airport | Airport | 255 | Walworth | 42 48 45 N | 088 43 35 W |
| Clover Valley Fen State Natural Area | Park | 257 | Walworth | 42 47 10 N | 088 42 14 W |
| Clover Valley School (historical) | School | 290 | Dunn | 45 05 46 N | 091 54 54 W |
| Clover Valley School (historical) | School | 449 | Langlade | 45 07 31 N | 089 12 31 W |
| Cloverdale | Populated Place | 280 | Juneau | 44 01 30 N | 090 10 44 W |
| Cloverdale School | School | 460 | Taylor | 45 08 34 N | 090 11 16 W |
| Cloverdale School (historical) | School | 420 | Clark | 44 52 21 N | 090 24 26 W |
| Cloverdale School (historical) | School | 275 | Jackson | 44 15 05 N | 090 56 45 W |
| Cloverdale School (historical) | School | 470 | Langlade | 45 22 18 N | 089 01 44 W |
| Cloverdale School (historical) | School | 344 | Pierce | 44 48 48 N | 092 26 10 W |
| Cloverdale Valley | Valley | | Jackson | 44 13 20 N | 090 56 29 W |
| Cloverland | Populated Place | 244 | Douglas | 46 40 37 N | 091 40 45 W |
| Cloverland School (historical) | School | 361 | Rusk | 45 26 15 N | 091 01 45 W |
| Cloverleaf Farm | Locale | 366 | Richland | 43 30 10 N | 090 33 26 W |
| Cloverleaf Lake | Lake | 293 | Washburn | 46 03 15 N | 091 59 29 W |
| Cloverleaf School (historical) | School | 264 | Outagamie | 44 17 16 N | 088 40 39 W |
| Cloverleaf School (historical) | School | 372 | St. Croix | 45 01 05 N | 092 17 53 W |
| Clovernook Playground | Park | 223 | Milwaukee | 43 08 13 N | 087 59 56 W |
| Clovernook School (historical) | School | 486 | Oneida | 45 39 08 N | 089 27 08 W |
| Clovernook School (historical) | School | 246 | Waupaca | 44 35 53 N | 088 39 27 W |
| Clovernook School (historical) | School | 360 | Wood | 44 35 53 N | 089 59 06 W |
| Clovis Grove Elementary School | School | 229 | Winnebago | 44 12 58 N | 088 25 37 W |
| Clovis Park | Park | 230 | Winnebago | 44 13 01 N | 088 25 32 W |
| Clow Hall | Building | 231 | Winnebago | 44 01 34 N | 088 33 08 W |
| Club Lake | Lake | 443 | Bayfield | 46 17 18 N | 091 03 22 W |
| Clubhouse Ditch | Canal | 261 | Dodge | 43 35 36 N | 088 38 30 W |
| Clubhouse Island | Island | 262 | Dodge | 43 29 34 N | 088 39 58 W |
| Clubhouse Lake | Lake | 302 | Burnett | 45 56 24 N | 092 03 29 W |
| Clubhouse Springpond | Lake | 408 | Langlade | 45 09 11 N | 088 52 30 W |
| Clubhouse Springpond State Fishery Area | Park | 412 | Langlade | 45 09 06 N | 088 52 34 W |
| Clukey Creek | Stream | | Oneida | 45 37 19 N | 089 48 35 W |
| Clumbs Island | Island | 483 | Oneida | 45 52 42 N | 089 41 45 W |
| Clyde | Populated Place | 224 | Iowa | 43 07 10 N | 090 12 41 W |
| Clyde | Populated Place | 218 | Kewaunee | 44 30 58 N | 087 34 58 W |
| Clyde Lake | Lake | 326 | Douglas | 46 10 41 N | 091 42 15 W |
| Clyman | Populated Place | 279 | Dodge | 43 18 41 N | 088 43 12 W |
| Clyman Center Cemetery | Cemetery | 276 | Dodge | 43 19 41 N | 088 44 16 W |
| Clyman Creek | Stream | | Dodge | 43 15 16 N | 088 43 35 W |
| Clyman Junction | Populated Place | 269 | Dodge | 43 19 31 N | 088 43 04 W |
| Co-op Park Rapids | Rapids | 278 | Douglas | 46 36 36 N | 091 35 03 W |
| Coalburn School (historical) | School | 331 | Crawford | 43 14 54 N | 090 43 32 W |
| Coalpit Slough | Gut | 184 | Grant | 42 41 06 N | 090 54 38 W |
| Coate Hall | Building | 206 | La Crosse | 43 49 03 N | 091 14 07 W |
| Cobb | Populated Place | 356 | Iowa | 42 58 03 N | 090 19 46 W |
| Cobb Town | Populated Place | 287 | Waupaca | 44 22 32 N | 089 12 55 W |
| Cobban | Populated Place | 296 | Chippewa | 45 06 11 N | 091 12 23 W |
| Cobblestone Cemetery | Cemetery | 305 | Walworth | 42 31 25 N | 088 33 35 W |
| Cobeen Residence Hall | Building | 196 | Milwaukee | 43 02 22 N | 087 55 34 W |
| Coburn Lake | Lake | 415 | Bayfield | 46 16 44 N | 091 09 45 W |
| Coburn Ridge | Ridge | 366 | Pepin | 44 40 37 N | 092 05 23 W |
| Cochram Creek | Stream | | Price | 45 56 49 N | 090 06 04 W |
| Cochram Lake | Lake | 479 | Price | 45 57 53 N | 090 06 29 W |
| Cochran Lake | Lake | 504 | Vilas | 46 11 18 N | 089 31 03 W |
| Cochrane | Populated Place | 206 | Buffalo | 44 13 39 N | 091 50 07 W |
| Cochrane Flood Control 3WR626 Dam | Dam | 291 | Buffalo | 44 26 60 N | 091 50 01 W |
| Cochrane-Fountain City Community School | School | 210 | Buffalo | 44 11 32 N | 091 46 41 W |
| Coddington | Populated Place | 326 | Portage | 44 22 13 N | 089 32 53 W |
| Coddington Dam 2WP2383 | Dam | 277 | Adams | 43 47 18 N | 089 38 24 W |
| Coddington School | School | 267 | Dunn | 44 52 12 N | 091 55 22 W |
| Cody Creek | Stream | | Florence | 45 50 31 N | 088 29 27 W |