Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Union School (historical) | School | 204 | Saline | 39 10 32 N | 093 16 51 W |
| Union School (historical) | School | 281 | Schuyler | 40 21 58 N | 092 25 56 W |
| Union School (historical) | School | 235 | Scotland | 40 24 34 N | 092 04 55 W |
| Union School (historical) | School | 248 | Shelby | 39 53 04 N | 092 16 58 W |
| Union School (historical) | School | 183 | St. Charles | 38 46 12 N | 090 40 30 W |
| Union School (historical) | School | 140 | St. Charles | 38 42 38 N | 090 34 45 W |
| Union School (historical) | School | 250 | Vernon | 37 52 23 N | 094 21 28 W |
| Union Star | Populated Place | 292 | DeKalb | 39 58 50 N | 094 35 40 W |
| Union Star Church (historical) | Church | 404 | Laclede | 37 28 38 N | 092 21 15 W |
| Union Station | Locale | 237 | Jackson | 39 05 05 N | 094 35 06 W |
| Union Station | Locale | 139 | St. Louis (city) | 38 37 40 N | 090 12 28 W |
| Union Temple | Church | 280 | Adair | 40 06 36 N | 092 44 12 W |
| Union Valley School | School | 369 | Barry | 36 40 03 N | 094 02 38 W |
| Union Valley School (historical) | School | 293 | Jasper | 37 20 14 N | 094 15 52 W |
| Union Victory School (historical) | School | 305 | Dallas | 37 49 57 N | 092 52 53 W |
| Union Water Storage Tank | Tower | 191 | Franklin | 38 24 47 N | 090 57 23 W |
| Unionjoy School (historical) | School | 376 | Lawrence | 37 14 04 N | 093 57 20 W |
| Uniontown | Populated Place | 172 | Perry | 37 36 53 N | 089 42 50 W |
| Uniontown School | School | 166 | Phelps | 37 37 18 N | 089 43 39 W |
| Unionville | Populated Place | 324 | Putnam | 40 28 37 N | 093 00 12 W |
| Unionville Airport | Airport | 318 | Putnam | 40 32 25 N | 093 01 32 W |
| Unionville Old City Lake Dam | Dam | 311 | Putnam | 40 28 42 N | 093 01 25 W |
| Unionville Reservoir | Reservoir | 298 | Putnam | 40 30 02 N | 093 01 27 W |
| United Brethren Cemetery | Cemetery | 254 | Callaway | 38 46 58 N | 091 57 23 W |
| United Brethren Church (historical) | Locale | 255 | Callaway | 38 46 58 N | 091 57 21 W |
| United Church | Church | 299 | Crawford | 37 58 34 N | 091 16 43 W |
| United Church | Church | 77 | Pemiscot | 36 09 13 N | 089 57 02 W |
| United Methodist Church | Church | 292 | Gasconade | 38 21 50 N | 091 34 18 W |
| United Methodist Church | Church | 267 | Vernon | 37 50 03 N | 094 22 16 W |
| United Methodist Church | Church | 269 | Washington | 37 56 31 N | 090 43 35 W |
| United School (historical) | School | 232 | Franklin | 38 31 11 N | 091 09 46 W |
| United States Army Records Center | Building | 177 | St. Louis | 38 41 06 N | 090 21 56 W |
| United States Forest Service Fire Tower | Tower | 381 | Ozark | 36 37 41 N | 092 43 35 W |
| Unity | Populated Place | 248 | Scotland | 40 23 28 N | 092 15 21 W |
| Unity Cemetery | Cemetery | 253 | Audrain | 39 06 15 N | 091 45 46 W |
| Unity Cemetery | Cemetery | 232 | Audrain | 39 18 38 N | 091 44 18 W |
| Unity Chapel (historical) | Church | 229 | Caldwell | 39 40 23 N | 093 49 53 W |
| Unity Church | Church | 100 | Scott | 37 03 46 N | 089 29 44 W |
| Unity Church (historical) | Church | 361 | Nodaway | 40 33 41 N | 094 45 52 W |
| Unity Lake Number 1 | Reservoir | 273 | Jackson | 38 56 54 N | 094 23 49 W |
| Unity Lake Number 1 Dam | Dam | 273 | Jackson | 38 56 54 N | 094 23 49 W |
| Unity Lake Number 2 | Reservoir | 257 | Jackson | 38 57 36 N | 094 23 49 W |
| Unity Lake Number 2 Dam | Dam | 257 | Jackson | 38 57 36 N | 094 23 49 W |
| Unity Lake Number One | Reservoir | 279 | Jackson | 38 56 55 N | 094 23 46 W |
| Unity Lake Number Two | Reservoir | 266 | Jackson | 38 57 36 N | 094 23 47 W |
| Unity Post Office | Post Office | 248 | Scotland | 40 23 28 N | 092 15 21 W |
| Unity School | School | 315 | Jasper | 37 18 16 N | 094 06 24 W |
| Unity School | School | 329 | Ste. Genevieve | 37 41 32 N | 090 12 16 W |
| Unity School (historical) | School | 360 | Nodaway | 40 33 25 N | 094 46 24 W |
| Unity School (historical) | School | 274 | St. Francois | 37 45 35 N | 090 21 54 W |
| Unity Southern Baptist Church | Church | 314 | Washington | 37 54 10 N | 090 41 37 W |
| Unity Tower | Locale | 297 | Jackson | 38 56 51 N | 094 24 28 W |
| Unity Village | Populated Place | 285 | Jackson | 38 57 05 N | 094 24 06 W |
| Universal School | School | 296 | DeKalb | 39 59 20 N | 094 27 12 W |
| University City | Populated Place | 161 | St. Louis | 38 39 21 N | 090 18 33 W |
| University City | Populated Place | 153 | St. Louis (city) | 38 40 00 N | 090 19 15 W |
| University Hospital | Hospital | 227 | Boone | 38 56 19 N | 092 19 42 W |
| University Hospitals and Clinics Heliport | Airport | 221 | Boone | 38 56 10 N | 092 19 43 W |
| University of Missouri | School | 229 | Boone | 38 56 45 N | 092 19 40 W |
| University of Missouri Ashland Wildlife Research Area | Park | 237 | Boone | 38 45 24 N | 092 11 49 W |
| University of Missouri at Kansas City | School | 272 | Jackson | 39 02 06 N | 094 34 38 W |
| University of Missouri Environmental Health | Locale | 237 | Boone | 38 50 22 N | 092 18 17 W |
| University of Missouri Experimental Farm | Locale | 382 | Lawrence | 37 03 58 N | 093 52 48 W |
| University of Missouri Experimental Farm Dam | Dam | 172 | St. Charles | 38 42 36 N | 090 41 24 W |
| University of Missouri Forestry Camp | Locale | 160 | Butler | 36 54 24 N | 090 19 12 W |
| University of Missouri R1 Dam | Dam | 245 | Boone | 38 54 12 N | 092 16 43 W |
| University of Missouri Saint Louis Campus | School | 193 | St. Louis | 38 42 38 N | 090 18 41 W |
| University of Missouri Weldon Spring Experim | School | 186 | St. Charles | 38 41 43 N | 090 41 42 W |
| University of Missouri-Rolla | School | 348 | Phelps | 37 57 13 N | 091 46 27 W |
| Upalika | Populated Place | 224 | Wayne | 36 56 12 N | 090 38 21 W |
| Upalika Pond | Locale | 218 | Wayne | 36 55 38 N | 090 37 13 W |
| Upalika Pond | Reservoir | 212 | Wayne | 36 56 08 N | 090 37 56 W |
| Uplands Park | Populated Place | 186 | St. Louis | 38 41 35 N | 090 16 56 W |
| Upp School (historical) | School | 220 | Clark | 40 35 51 N | 091 51 07 W |
| Upper Bean Creek School | School | 401 | Texas | 37 29 38 N | 091 48 34 W |
| Upper Big Lake Dam | Dam | 93 | Mississippi | 36 57 18 N | 089 22 00 W |
| Upper Bottom School | School | 153 | Franklin | 38 41 16 N | 091 20 17 W |
| Upper Brixey School | School | 225 | Ozark | 36 46 57 N | 092 21 48 W |
| Upper Brixey School (historical) | School | 272 | Ozark | 36 44 28 N | 092 25 05 W |
| Upper Charrette School | School | 229 | Warren | 38 45 51 N | 091 02 44 W |
| Upper Doe Run Cemetery | Cemetery | 251 | Reynolds | 37 11 32 N | 090 54 36 W |
| Upper Doe Run School | School | 230 | Reynolds | 37 11 22 N | 090 54 16 W |
| Upper Doniphan Dam | Dam | 268 | Ray | 39 19 36 N | 094 11 43 W |
| Upper Dry Valley School (historical) | School | 271 | Reynolds | 37 19 12 N | 090 59 52 W |
| Upper Dugan Bluff | Cliff | 246 | Shannon | 37 18 01 N | 091 20 17 W |
| Upper First Creek School (historical) | School | 232 | Gasconade | 38 34 50 N | 091 32 07 W |
| Upper Girdner School (historical) | School | 325 | Mercer | 40 31 41 N | 093 31 03 W |
| Upper Hepsida Church | Church | 367 | Dent | 37 29 19 N | 091 40 23 W |
| Upper Imboden School (historical) | School | 321 | Iron | 37 37 22 N | 090 49 22 W |
| Upper Lake Chapperal | Reservoir | 252 | Boone | 39 09 06 N | 092 14 31 W |
| Upper Lake Chapperal Dam | Dam | 252 | Boone | 39 09 06 N | 092 14 31 W |
| Upper Little Berger School | School | 232 | Gasconade | 38 37 38 N | 091 23 51 W |
| Upper Mill Creek School | School | 284 | Phelps | 37 48 51 N | 091 56 29 W |
| Upper Mississippi River State Wildlife Manag | Park | 135 | Pike | 39 14 52 N | 090 44 02 W |
| Upper Monegaw School | School | 241 | St. Clair | 38 04 39 N | 093 55 10 W |
| Upper Narrows | Ridge | 266 | Crawford | 37 57 56 N | 091 12 30 W |
| Upper Neely Branch | Stream | | Andrew | 40 05 19 N | 094 50 07 W |
| Upper Neely School (historical) | School | 311 | Andrew | 40 06 21 N | 094 48 14 W |
| Upper Odell School | School | 349 | Laclede | 37 32 41 N | 092 39 32 W |
| Upper Parker Church | Church | 384 | Dent | 37 29 43 N | 091 36 34 W |
| Upper Parker School | School | 372 | Dent | 37 29 17 N | 091 37 22 W |
| Upper Peavine Creek | Stream | | Maries | 38 13 26 N | 091 40 37 W |
| Upper Pilot Knob | Summit | 391 | Taney | 36 42 14 N | 092 56 02 W |
| Upper Pool | Reservoir | 484 | Reynolds | 37 32 00 N | 090 49 18 W |
| Upper Reservoir | Reservoir | 472 | Iron | 37 31 59 N | 090 49 19 W |
| Upper Sandy Creek | Stream | | Lincoln | 39 03 16 N | 090 46 39 W |
| Upper Shoals | Bar | 102 | Butler | 36 43 21 N | 090 09 25 W |
| Upper Tenmile School (historical) | School | 231 | Carter | 36 53 58 N | 090 47 31 W |
| Upper Tennessee School | School | 301 | Mercer | 40 27 36 N | 093 37 17 W |
| Upper Turkey Creek Church | Church | 165 | Wayne | 37 14 08 N | 090 16 42 W |