# List of state highways in Wyoming

The state highway system in the U.S. state of Wyoming consists of a series of numbered routes; usually known as WYO X, where X is the route number.

## List

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
| WYO 10 | 9.12 | 14.68 | Larimer CR 103 at CO border | WYO 230 in Woods Landing | — | — | Jelm Mountain Road |
| WYO 11 | 10.94 | 17.61 | NFS Route 500 in Albany | WYO 130 near Centennial | — | — | Albany Road |
| WYO 12 | 12.18 | 19.60 | Albany CR 57 near Woodedge | WYO 130 near Laramie | — | — | Herrick Lane |
| WYO 13 | 17.76 | 28.58 | I-80 at Arlington | US 30 and US 287 in Rock River | — | — | Arlington Road |
| WYO 14 | 449.21 | 722.93 | US 14 in Cody | US 14 in Burgess Junction | 01940-01-011940 | 01965-01-011965 | Replaced by US 14A |
| WYO 14 | 0.36 | 0.58 | Laramie Regional Airport | WYO 130 near Laramie Regional Airport | — | — | Airport Road |
| WYO 22 | 17.53 | 28.21 | ID 33 near Wilson | US 26/US 89/US 189/US 191 in Jackson | 01942-01-011942 | current | Teton Pass Highway |
| WYO 24 | 46.72 | 75.19 | US 14 at Devils Tower Junction | SD 34 near Aladdin | 01961-01-011961 | current | Bear Lodge Highway |
| WYO 26 | 52.38 | 84.30 | US 30/US 287 near Bosler | US 87 in Wheatland | 01926-01-011926 | 01949-01-011949 | Replaced by WYO 34 |
| WYO 28 | 96.50 | 155.30 | WYO 372 near Farson | US 287/WYO 789 near Lander | — | — | South Pass Highway |
| WYO 30 | 26.02 | 41.88 | US 14/US 16/US 20 near Burlington | US 16/US 20/WYO 789 in Basin | — | — | Otto Road |
| WYO 31 | 22.09 | 35.55 | US 16/US 20/WYO 789 in Manderson | Big Horn CR R49 at Hyattville | — | — | Cold Springs Road |
| WYO 32 | 31.48 | 50.66 | US 14/US 16/US 20 near Emblem | US 310/US 14A/WYO 789 near Lovell | — | — | Emblem Highway |
| WYO 33 | 1.39 | 2.24 | BLM route near Forester Gulch | WYO 32 near Lovell | — | — | Mileage marker starts at 2.89, coinciding with WYO 32 mileage at junction |
| WYO 34 | 52.38 | 84.30 | US 30/US 287 south of Bosler | I-25/US 87 south of Wheatland | 01949-01-011949 | current | Laramie–Wheatland Road |
| WYO 35 | 1.08 | 1.74 | Big Horn CR R7 near Cowley | US 310/WYO 789 in Cowley | — | — | |
| WYO 36 | 2.76 | 4.44 | WYO 30 in Basin | US 16/US 20/WYO 789 north of Basin | — | — | |
| WYO 37 | 9.00 | 14.48 | US 14A near Lovell | Bighorn Canyon NRA | — | — | |
| WYO 50 | 52.67 | 84.76 | WYO 387 at Pine Tree Junction | US 14/US 16/WYO 59/I-90 Bus. in Gillette | — | — | Skyline Drive; 4 J Road |
| WYO 51 | 24.79 | 39.90 | I-90/US 14/US 16/I-90 Bus. in Gillette | US 14/US 16/I-90 Bus. in Moorcroft | — | — | Rozet Road |
| WYO 59 | 171.97 | 276.76 | I-25/US 20/US 26/US 87/I-25 Bus./US 20 Bus./US 26 Bus./US 87 Bus./WYO 94 in Douglas | MT 59 near Gillette | 01945-01-011945 | current | |
| WYO 65 | 55.84 | 89.87 | US 30S in EvanstonUT 30 near Kemmerer | UT 16 near Bear RiverID 61 near Geneva, Idaho | 01924-01-011924 | 01938-01-011938 | Replaced by WYO 89 over northern portion in 1926 (reduced route to 17.44 mi), then over southern portion in 1938 |
| WYO 70 | 57.66 | 92.79 | WYO 789 in Baggs | WYO 230 in Riverside | — | — | Battle Highway |
| WYO 71 | 10.83 | 17.43 | Carbon CR 401 near Rawlins | WYO 78 in Rawlins | — | — | Sage Creek Road |
| WYO 72 | 15.45 | 24.86 | Carbon CR 402 in Elk Mountain | Adams Street in Hanna | — | — | Hanna Road |
| WYO 73 | 4.64 | 7.47 | Sweetwater | US 287/WY 789 in Lamont | — | — | Bairoil Road |
| WYO 74 | 0.13 | 0.21 | WYO 130 in Saratoga | Carbon CR 504 in Saratoga | — | — | Unsigned; Bridge Street |
| WYO 75 | 22.10 | 35.57 | WYO 487 near Medicine Bow | WYO 487 near Alcove | — | 01975-01-011975 | Replaced by WYO 487 |
| WYO 76 | 6.54 | 10.53 | I-80/US 30/US 287/I-80 Bus./US 30 Bus. in Rawlins | I-80/US 30/US 287 near Sinclair | — | — | Old US 30/US 287 |
| WYO 77 | 22.18 | 35.70 | WYO 487 north of Medicine Bow | WYO 487 near Alcove | 01975-01-011975 | current | Old Shirley Basin Road |
| WYO 78 | 1.23 | 1.98 | Wyoming State Penitentiary in Rawlins | WYO 71 in Rawlins | — | — | Higley Boulevard |
| WYO 87 | 53.20 | 85.62 | CO 13 near Baggs, Wyoming | US 30 near Creston | 01930-01-011930 | 01940-01-011940 | Replaced by WYO 330, now WYO 789; Baggs Road |
| WYO 89 | 55.84 | 89.87 | I-80/US 189/WYO 150 in EvanstonUT 30 near Kemmerer | UT 16 near Bear RiverID 61 near Geneva, Idaho | 01926-01-011926 | current | route only covered northern portion 1926-, decommissioned (became WYO 91) 1936, recommissioned over WYO 65 and WYO 91 1938 |
| WYO 90 | 3.00 | 4.83 | Converse CR 17 southeast of Glenrock | US 20/US 26/US 87/I-25 Bus. east of Glenrock | — | — | Boxelder Road |
| WYO 91 | 38.40 | 61.80 | UT 30 near Kemmerer | ID 61 near Geneva, Idaho | 01936-01-011936 | 01938-01-011938 | Replaced by WYO 89 |
| WYO 91 | 23.10 | 37.18 | Converse CR 11/CR 24 southwest of Douglas | WYO 94 in Douglas | — | — | Cold Springs Road |
| WYO 92 | 16.50 | 26.55 | US 26/US 85 in Torrington | N-92 near Huntley | — | — | |
| WYO 93 | 26.02 | 41.88 | WYO 59 in Douglas | Converse CR 32/CR 33 northwest of Douglas | — | — | |
| WYO 94 | 16.61 | 26.73 | Converse CR 5 north of Esterbrook | I-25 Bus./US 20 Bus./US 26 Bus./US 87 Bus./WYO 59 in Douglas | — | — | Esterbrook Road |
| WYO 95 | 19.23 | 30.95 | I-25/I-25 Bus. south of GlenrockUS 20, US 26/US 87 in Glenrock | US 20/US 26/US 87/I-25 Bus. in GlenrockWYO 93 northeast of Glenrock | — | — | Monkey Mountain Road; Glenrock-Ross Road |
| WYO 96 | 3.11 | 5.01 | I-25/US 20/US 26/US 87 near Douglas | WYO 91 west of Douglas | — | — | |
| WYO 110 | 0.585 | 0.941 | WYO 24 near Devils Tower | Devils Tower NM | — | — | Devils Tower Road, Entrance Road |
| WYO 111 | 8.63 | 13.89 | I-90 and US 14 northeast of Sundance | WYO 24 at Aladdin | — | — | |
| WYO 112 | 29.50 | 47.48 | WYO 24 in Hulett | Montana state line south of Alzada, Montana | — | — | |
| WYO 113 | 6.61 | 10.64 | US 14 north of Moorcroft | Pine Haven Road in Pine Haven | — | — | Old Sundance Road |
| WYO 114 | 10.82 | 17.41 | US 14 Alt. at Garland | US 310 and WYO 789 in Deaver | — | — | Old Sundance Road |
| WYO 116 | — | — | — | — | — | — | Replaced by US 116 (later US 14) |
| WYO 116 | 60.97 | 98.12 | WYO 450 west of Newcastle | US 14 and I-90 Bus. in Sundance | — | — | |
| WYO 120 | 121.96 | 196.28 | US 20 and WYO 789 in Thermopolis | Montana state line north of Clark | — | — | |
| WYO 130 | 98.52 | 158.55 | I-80, US 30, and US 287 south of Walcott | I-80 Bus., US 30, and US 287 in Laramie | — | — | Snowy Range Road |
| WYO 131 | 9.00 | 14.48 | Sinks Canyon Road southwest of Lander | US 287 in Lander | — | — | Sinks Canyon Road |
| WYO 132 | 17.43 | 28.05 | US 287 north of Lander | US 26 and WYO 133 at Kinnear | — | — | Ethete Road |
| WYO 133 | 6.07 | 9.77 | US 26 and WYO 132 at Kinnear | Pavillion Road in Pavillion | — | — | Pavillion Road |
| WYO 134 | 24.17 | 38.90 | WYO 133 south of Pavillion | US 26 and WYO 789 southwest of Shoshoni | — | — | Missouri Valley Road |
| WYO 135 | 35.62 | 57.32 | US 287 and WYO 789 at Sweetwater Station | WYO 789 south of Riverton | — | — | Sand Draw Road |
| WYO 136 | 42.70 | 68.72 | WYO 135 south of Riverton | CR 5 in the Gas Hills Uranium Mining District | — | — | Gas Hills Road |
| WYO 137 | 8.79 | 14.15 | CR 334 southwest of Riverton | WYO 789 south of Riverton | — | — | Seventeen Mile Road. Returned to tribal control in 2015. |
| WYO 138 | 8.14 | 13.10 | WYO 789 east of Hudson | WYO 137 at Saint Stephens | — | — | Rendezvous Road. Returned to tribal control in 2010. |
| WYO 139 | 1.45 | 2.33 | WYO 135 west of Sand Draw | Sand Draw | — | — | Sand Draw Road |
| WYO 150 | 23.05 | 37.10 | UT 150 at UT border | I-80/US 189/WYO 89 near Evanston | — | — | Mirror Lake Scenic Byway |
| WYO 151 | 9.89 | 15.92 | US 85 west of LaGrange | N-88 at NE border | — | — | La Grange Road |
| WYO 152 | 9.80 | 15.77 | Goshen CR 124 | US 85/WYO 161 east of Yoder | — | — | |
| WYO 153 | 1.02 | 1.64 | WYO 152 | Goshen CR 33 | — | — | Goodland Road |
| WYO 154 | 21.11 | 33.97 | WYO 152 in Yoder | US 85/WYO 92 south of Torrington | — | — | Goodland Road |
| WYO 155 | — | — | — | — | — | — | Now part of WYO 156 and WYO 157 |
| WYO 156 | 14.29 | 23.00 | US 26/US 85 in Lingle | US 85/WYO 92 in Torrington | — | — | |
| WYO 157 | 7.99 | 12.86 | US 26 southeast of Fort Laramie | WYO 156 in Lingle | — | — | |
| WYO 158 | 8.02 | 12.91 | WYO 92 southeast of Huntley | CR 63 at NE border | — | — | |
| WYO 159 | 12.78 | 20.57 | US 26/US 85 in Torrington | Goshen CR 47 north of Torrington | — | — | |
| WYO 160 | 1.08 | 1.74 | Goshen CR 53 west of Fort Laramie | US 26 in Fort Laramie | — | — | |
| WYO 161 | 7.03 | 11.31 | US 85/WYO 152 east of Yoder | WYO 92 in Huntley | — | — | |
| WYO 170 | 15.41 | 24.80 | CR 15 at Hamilton Dome | WYO 120 northwest of Thermopolis | — | — | Owl Creek Road (east–west); Hamilton Dome Road (north–south) |
| WYO 171 | 8.63 | 13.89 | CR 17 and CR 36 at Glass Creek | WYO 120 east of Glass Creek | — | — | Grass Creek Road |
| WYO 172 | 11.26 | 18.12 | US 20 and WYO 789 at Lucerne | CR 6 east of Lucerne | — | — | Kirby Creek Road; Black Mountain Road |
| WYO 173 | 1.61 | 2.59 | US 20 and WYO 789 south of Thermopolis | CR 31 south of Thermopolis | — | — | |
| WYO 174 | 0.60 | 0.97 | CR 1 south of Hamilton Dome | WYO 170 south of Hamilton Dome | — | — | Red Creek Ranch Road |
| WYO 175 | 0.32 | 0.51 | US 20 and WYO 789 west of Kirby | West Main Street in Kirby | — | — | Kirby Road |
| WYO 176 | — | — | — | — | — | — | Now Owl Hill Creek Road. May have been part of the current WYO 120 alignment |
| WYO 185 | — | — | US 20/US 26/US 87 in Douglas | MT 59 near Gillette | 01934-01-011934 | 01936-01-011936 | Replaced by WYO 387, now WYO 59 |
| WYO 190 | 9.66 | 15.55 | CR 78 at Barnum | WYO 191 west of Kaycee | — | — | Barnum Road |
| WYO 191 | 11.71 | 18.85 | CR 115 and CR 266 at Mayoworth | WYO 192 and WYO 196 in Kaycee | — | — | Mayoworth Road |
| WYO 192 | 35.64 | 57.36 | WYO 191 and WYO 196 in Kaycee | WYO 387 northeast of Edgerton | — | — | |
| WYO 193 | 6.19 | 9.96 | I-90 and US 87 near Kearny | US 87 at Banner | — | — | |
| WYO 194 | 2.81 | 4.52 | Story Fish Hatchery west of Story | WYO 193 east of Story | — | — | |
| WYO 196 | 49.84 | 80.21 | I-25 and US 87 south of Kaycee | I-25 Bus. and US 87 Bus. in Buffalo | — | — | Old US 87 |
| WYO 197 | — | — | — | — | — | — | Now County Road 110 |
| WYO 210 | 37.79 | 60.82 | I-80/US 30 east of Laramie | I-25/US 87 in Cheyenne | — | — | Happy Jack Road |
| WYO 211 | 43.88 | 70.62 | WYO 219 north of Cheyenne | I-25/US 87 and WYO 313/I-25 Bus. in Chugwater | — | — | Horse Creek Road; Iron Mountain Road |
| WYO 212 | 14.06 | 22.63 | I-25/US 87 near Cheyenne | WYO 219 in Ranchettes | — | — | College Drive; Four Mile Road |
| WYO 213 | 19.80 | 31.87 | I-80/US 30 and WYO 214 south of Burns | US 85 south of Meriden | — | — | Burns Road |
| WYO 214 | 8.39 | 13.50 | Laramie CR 203-1 in Carpenter | I-80/US 30 and WYO 213 south of Burns | — | — | Carpenter Road |
| WYO 215 | 17.19 | 27.66 | I-80/US 30 in Pine Bluffs | WYO 216 in Albin | — | — | |
| WYO 216 | 18.54 | 29.84 | US 85 south of Meriden | Laramie CR 164 at NE border | — | — | Albin Road |
| WYO 216 | — | — | — | — | — | — | Replaced by US 216 |
| WYO 217 | 4.43 | 7.13 | Laramie CR 140 northwest of Carpenter | I-80/US 30 southwest of Hillsdale | — | 02009-01-012009 | |
| WYO 218 | 1.77 | 2.85 | Laramie CR 102 south of Granite Canon | I-80/US 30 in Granite Canon | — | 02009-01-012009 | Harriman Road |
| WYO 219 | 5.48 | 8.82 | I-25 Bus./US 85 in Cheyenne | US 85 north of Cheyenne | — | — | Yellowstone Road |
| WYO 220 | 72.79 | 117.14 | US 287 and WYO 789 north of Muddy Gap | I-25, US 20, US 26, and US 87 in Casper | — | — | Alcova Highway |
| WYO 221 | 1.84 | 2.96 | I-25 Bus./US 85 in Fox Farm-College | WYO 212 in Fox Farm-College | — | — | Fox Farm Road |
| WYO 222 | 1.81 | 2.91 | WYO 225 west of Cheyenne | WYO 210 west of Cheyenne | — | — | Fort Access Road |
| WYO 223 | 5.69 | 9.16 | I-25/US 87 southwest of Cheyenne | US 85 south of Cheyenne | — | — | Terry Ranch Road |
| WYO 224 | 0.12 | 0.19 | I-25/US 87 in Cheyenne | WYDOT Headquarters | — | — | Wyoming Dept. of Transportation Headquarters Entrance |
| WYO 225 | 11.21 | 18.04 | I-80/US 30 east of Granite Canon | I-80/US 30 west of Cheyenne | — | — | Otto Road |
| WYO 226 | — | — | — | — | — | — | Replaced by WYO 210 |
| WYO 230 | 74.78 | 120.35 | WYO 130 south of Saratoga | I-80 Bus./US 30/US 287 in Laramie | — | — | Rivers Road |
| WYO 231 | 0.60 | 0.97 | CR 207 in Cokeville | US 30, WYO 89, and WYO 232 in Cokeville | — | — | Cokeville–Utah Road |
| WYO 232 | 12.22 | 19.67 | US 30, WYO 89, and WYO 231 in Cokeville | Smiths Fork Road north of Cokeville | — | — | Smiths Fork Road |
| WYO 233 | 19.29 | 31.04 | US 189 in Kemmerer | CR 305 north of Kemmerer | — | — | Hams Fork Road |
| WYO 234 | — | — | Kemmerer Municipal Airport near Frontier | WYO 233 in Frontier | — | — | Now County Route 234 |
| WYO 235 | 4.49 | 7.23 | US 189 in La Barge | CR 134 at Calpet | — | — | |
| WYO 236 | 2.60 | 4.18 | CR 140 and CR 142 at Fairveiw | US 89 south of Afton | — | — | |
| WYO 237 | 3.42 | 5.50 | 1st Street at Auburn | US 89 at Grover | — | — | |
| WYO 238 | 12.08 | 19.44 | US 89 in Afton | US 89 north of Auburn | — | — | |
| WYO 239 | 1.64 | 2.64 | Idaho state line at Freedom | US 89 east of Freedom | — | — | |
| WYO 240 | 12.28 | 19.76 | US 30 in Opal | US 189 northeast of Kemmerer | — | — | Opal Road |
| WYO 241 | 4.27 | 6.87 | US 89 north of Smoot | WYO 236 south of Afton | — | — | |
| WYO 250 | — | — | — | — | — | — | Former spur route that ran north from WYO 487 |
| WYO 251 | 8.99 | 14.47 | CR 505 at Casper Mountain | I-25 Bus., US 20 Bus., US 26 Bus., and US 87 Bus. in Casper | — | — | Casper Mountain Road; Walcott Road |
| WYO 252 | 4.37 | 7.03 | WYO 251 south of Casper | WYO 258 in Casper | — | — | Gothmore Park Spur; Garden Creek Road |
| WYO 253 | 10.90 | 17.54 | CR 606 southeast of Casper | US 20, US 26, and US 87 in Evansville | — | — | |
| WYO 254 | 4.06 | 6.53 | US 20 Bus. and US 26 Bus. in Mills | I-25 and US 87 at Hartrandt | — | — | |
| WYO 255 | 0.48 | 0.77 | I-25 Bus., US 20 Bus., US 26 Bus., and US 87 Bus. in Casper | I-25, US 20, US 26, US 87, I-25 Bus., and US 87 Bus. in Casper | — | — | Center Street Casper |
| WYO 256 | 2.67 | 4.30 | US 20, US 26, US 87, and WYO 253 in Evansville | CR 701 northeast of Evansville | — | — | Cole Creek Road |
| WYO 257 | 7.30 | 11.75 | WYO 220 south of Red Butte | US 20, US 26, US 20 Bus., and US 26 Bus. in Casper | — | — | Casper West Belt Loop |
| WYO 258 | 10.58 | 17.03 | US 20 Bus. and US 26 Bus. in Casper, Wyoming | US 20, US 26, and US 87 in Evansville | — | — | Casper Beltline |
| WYO 259 | 18.00 | 28.97 | I-25 and US 87 north of Antelope Hills | WYO 387 in Midwest | — | — | |
| WYO 270 | 73.37 | 118.08 | US 26 east of Guernsey | US 18 and US 85 north of Lusk | — | — | |
| WYO 271 | 3.19 | 5.13 | CR 23 at West Lance Creek | WYO 270 at Lance Creek | — | — | Manning Road |
| WYO 272 | 3.32 | 5.34 | WYO 270 east of Lance Creek | CR 14 north of Lance Creek | — | — | North Lance Creek Road |
| WYO 273 | 0.33 | 0.53 | US 18 and US 20 east of Lusk | Niobrara Country Club | — | — | Country Club Road |
| WYO 274 | — | — | WYO 270 in Manville | US 18/US 20 southeast of Manville | — | — | Designated along old US 18/US 20 |
| WYO 287 | — | — | — | — | — | — | Replaced by US 189 |
| WYO 290 | 11.23 | 18.07 | CR 4IX and CR 5XS near Dumbell | WYO 120 in Meeteetse | — | — | |
| WYO 291 | 9.46 | 15.22 | CR 6WX southwest of Cody | US 14, US 16, and US 20 in Cody | — | — | Clarks Fork Canyon Road |
| WYO 292 | — | — | Morrison Jeep Trail west of Clark | WYO 120 east of Clark | — | — | Now County Road 1Ab |
| WYO 293 | — | — | WYO 120 near Cody, Wyoming | Yellowstone Regional Airport | — | — | Now County Road 3CX |
| WYO 294 | 18.82 | 30.29 | US 14 Alt. near Ralston | WYO 120 near Clark | — | — | |
| WYO 295 | 29.35 | 47.23 | WYO 32 southeast of Powell | CR 1NG near Elk Basin | — | — | |
| WYO 296 | 45.96 | 73.97 | US 212 near Yellowstone NP | WYO 120 north of Cody | — | — | Chief Joseph Highway |
| WYO 297 | — | — | WYO 292 near Clark | County Road 1Ab northwest of Clark | — | — | Now County Road 1Ab |
| WYO 310 | 8.49 | 13.66 | Reservoir Rd at Wheatland Reservoir #1 | I-25 Bus., US 87 Bus., and WYO 312 in Wheatland | — | — | Oak Street Wheatland |
| WYO 311 | 1.99 | 3.20 | WYO 310 in Westview Circle | Platte CR 139 and CR 90 | — | — | Hightower Road |
| WYO 312 | 7.30 | 11.75 | WYO 34 south of Wheatland | I-25 Bus., US 87 Bus., and WYO 310 in Wheatland | — | — | Preuit Road |
| WYO 313 | 30.81 | 49.58 | I-25 Bus. and WYO 321 in Chugwater | US 85 south of Hawk Springs | — | — | |
| WYO 314 | 8.57 | 13.79 | I-25/US 87 west of Slater | Slater Road east of WYO 315 | — | — | Slater Road |
| WYO 315 | 3.01 | 4.84 | WYO 314 in Slater | Bordeaux Road north of Slater | — | — | Pioneer Road |
| WYO 316 | 11.91 | 19.17 | I-25 Bus./US 87 Bus. in Wheatland | Dickinson Hill Road/Deer Creek Road | — | — | |
| WYO 317 | 1.66 | 2.67 | US 26 west of Guernsey | Guernsey State Park | — | — | |
| WYO 318 | 1.09 | 1.75 | WYO 270 in Hartville | Sunrise | — | — | |
| WYO 319 | 28.75 | 46.27 | I-25, US 26, and US 87 in Glendo | WYO 319 in Glendo | — | — | Old Yellowstone Highway |
| WYO 319 | 0.20 | 0.32 | I-25, US 26, and US 87 south of Glendo | US 18 and US 20 east of Orin | — | — | Spur of WYO 319 |
| WYO 320 | 12.33 | 19.84 | I-25 BL / US 87 Bus. in Wheatland | US 26 in Dwyer | — | — | Old Yellowstone Highway |
| WYO 321 | 3.34 | 5.38 | I-25 / US 87 / WYO 211 in Chugwater | I-25 / US 87 north of Chugwater | — | — | Old Yellowstone Highway |
| WYO 322 | — | — | — | — | — | — | Replaced by WWY 211 |
| WYO 330 | 53.20 | 85.62 | CO 13 near Baggs | US 30 near Creston | 01940-01-011940 | 01954-01-011954 | Replaced by WYO 789 |
| WYO 330 | 3.30 | 5.31 | CR 74 west of Sheridan | I-90 Bus., US 14 Bus., US 87 Bus., and WYO 336 in Sheridan | — | — | Fifth Street Sheridan |
| WYO 331 | 9.92 | 15.96 | CR 53 at Beckton | I-90 Bus., US 14 Bus., and US 87 Bus. in Sheridan | — | — | Big Goose Canyon Road |
| WYO 332 | 5.44 | 8.75 | US 87 and WYO 335 south of Sheridan | I-90 Bus., US 14 Bus., and US 87 Bus. in Sheridan | — | — | Big Horn Avenue |
| WYO 333 | 0.75 | 1.21 | Sheridan County Airport | WYO 332 in Sheridan | — | — | Airport Road |
| WYO 334 | 0.74 | 1.19 | WYO 332 in Sheridan | I-90 Bus., US 14 Bus., and US 87 Bus. in Sheridan | — | — | |
| WYO 335 | 9.71 | 15.63 | CR 26 southwest of Big Horn | US 87 and WYO 332 south of Sheridan | — | — | Brinton Road; Red Grade Road |
| WYO 336 | 11.52 | 18.54 | I-90 Bus., US 14 Bus., US 87 Bus., and WYO 330 in Sheridan | CR 42 at Wyarno | — | — | Ulm Road |
| WYO 337 | 1.54 | 2.48 | Fort MacKenzie Road in Sheridan | I-90 Bus., US 14 Bus., and US 87 Bus. in Sheridan | — | — | Fort Road |
| WYO 338 | 15.03 | 24.19 | I-90, I-90 Bus., US 14 Bus., and US 87 Bus. in Sheridan | Montana state line north of Sheridan | — | — | Decker Road; Higby Road |
| WYO 339 | 1.02 | 1.64 | I-90, US 14, and US 87 north of Sheridan | WYO 338 north of Sheridan | — | — | Jensick Connector |
| WYO 340 | 1.35 | 2.17 | CR 2 west of Story | WYO 194 at Story | — | — | |
| WYO 341 | 3.19 | 5.13 | CR 38 and CR 273 at Arvada | US 14 and US 16 north of Arvada | — | — | Arvada Spur |
| WYO 342 | 1.14 | 1.83 | US 87 south of Sheridan | I-90 south of Sheridan | — | — | Meade Road |
| WYO 343 | 5.24 | 8.43 | US 14 in Dayton | WYO 345 in Parkman | — | — | |
| WYO 344 | 27.77 | 44.69 | — | — | — | — | Unsigned; Old US 87/US 87 |
| WYO 345 | 19.27 | 31.01 | Montana state line north of Parkman | I-90, US 14, and US 87 at Monarch | — | — | |
| WYO 346 | 1.35 | 2.17 | — | — | — | — | Unsigned; Old US 87 |
| WYO 350 | 5.06 | 8.14 | CR 111 and CR 142 west of Big Piney | US 189 in Big Piney | — | — | Middle Piney Road |
| WYO 351 | 24.18 | 38.91 | US 189 north of Marbleton | US 191 east of Marbleton | — | — | |
| WYO 352 | 25.31 | 40.73 | US 191 west of Pinedale | Bridger-Teton NF | — | — | |
| WYO 353 | 15.51 | 24.96 | US 191 at Boulder | CR 118 and CR 133 near Big Sandy | — | — | |
| WYO 354 | 6.17 | 9.93 | CR 112 northwest of Daniel | US 189 and US 191 north of Daniel | — | — | Daniel–Merna Road |
| WYO 370 | 4.63 | 7.45 | I-80 and US 30 east of Rock Springs | Rock Springs-Sweetwater County Airport | — | — | Baxter Road |
| WYO 371 | 7.30 | 11.75 | I-80 and US 30 south of Superior | Upper Superior Road in Superior | — | — | Superior Road |
| WYO 372 | 45.89 | 73.85 | WYO 374 west of James Town | US 189 west of Fontenelle | — | — | La Barge Road |
| WYO 373 | — | — | — | — | — | — | |
| WYO 374 | 25.37 | 40.83 | I-80 south of GrangerI-80 and US 30 at Little America | US 30 south of GrangerI-80 Bus. and US 30 in Green River | — | — | Jamestown Road |
| WYO 375 | 0.99 | 1.59 | 3rd Street in Granger | US 30 in Granger | — | — | Granger Road |
| WYO 376 | 4.31 | 6.94 | I-80 Bus. and US 30 Bus. in Rock Springs | I-80 Bus. and US 30 Bus. in Rock Springs | — | — | Rock Springs Beltway; Circumferential Highway |
| WYO 377 | 1.96 | 3.15 | I-80 and US 30 at Point of Rocks | CR 15 east of Point of Rocks | — | 02017-01-012017 | Point of Rocks Road |
| WYO 387 | 57.81 | 93.04 | I-25 and US 87 west of Midwest | WYO 59 in Wright | — | — | |
| WYO 387 | — | — | US 20/US 26/US 87 in Douglas | MT 59 near Gillette | 01936-01-011936 | 01945-01-011945 | Replaced by WYO 59 |
| WYO 390 | 15.00 | 24.14 | WYO 22 east of Wilson | Grand Teton NP | — | — | Moose–Wilson Road |
| WYO 391 | 0.30 | 0.48 | US 26 / US 89 / US 191 / US 189 | WYDOT Maintenance Shop | — | — | Jackson Area Wyoming Department of Transportation Maintenance Shop |
| WYO 410 | 13.36 | 21.50 | CR 204 west of Robertson | WYO 411 southwest of Mountain View | 01971-01-011971 | current | |
| WYO 411 | 3.97 | 6.39 | CR 260 in Millburne | WYO 410 southwest of Mountain View | — | — | Milburne Road |
| WYO 412 | 24.73 | 39.80 | I-80 and WYO 414 northwest of Lyman | US 189 south of Kemmerer | 01971-01-011971 | current | Carter–Lyman Road |
| WYO 413 | 2.73 | 4.39 | I-80 BL in Lyman | I-80 north of Lyman | — | — | |
| WYO 414 | 46.12 | 74.22 | SR-43 at the Utah state line | I-80 / WYO 412 near McKinnon | 01971-01-011971 | current | |
| WYO 416 | — | — | — | — | — | — | Replaced by US 14 |
| WYO 420 | — | — | — | — | — | — | Replaced by WYO 120 |
| WYO 430 | 53.52 | 86.13 | Colorado state line near Hiawatha, Colorado | WYO 376 in Rock Springs | — | — | |
| WYO 431 | 30.19 | 48.59 | WYO 120 south of Meeteetse | US 20, WYO 432, and WYO 789 southwest of Worland | — | — | |
| WYO 432 | 10.29 | 16.56 | US 20, WYO 431, and WYO 789 southwest of Worland | US 20 and WYO 789 in Worland | — | — | |
| WYO 433 | 18.81 | 30.27 | US 20 and WYO 789 in Worland | US 16, US 20, and WYO 789 west of Manderson | — | — | |
| WYO 434 | 20.63 | 33.20 | CR R82 at Big Trails | US 16 in Ten Sleep | — | — | Nowood Road |
| WYO 435 | 0.78 | 1.26 | US 16 east of Ten Sleep | Old US 16 east of Ten Sleep | — | — | Fish Hatchery Road |
| WYO 436 | 5.93 | 9.54 | US 16 east of Ten Sleep | CR R56 southeast of Ten Sleep | — | — | Rome Hill Road |
| WYO 450 | 66.22 | 106.57 | WYO 59 south of Wright | US 16 west of Newcastle | — | — | Little Thunder Road |
| WYO 451 | 5.026 | 8.089 | CR 36B west of Osage | US 16 in Osage | — | — | Oil City Road |
| WYO 452 | 1.70 | 2.74 | US 16 west of Newcastle | US 16 in Newcastle | — | — | Now US 16 Truck |
| WYO 487 | 71.56 | 115.16 | US 30 and US 287 in Medicine Bow | WYO 220 southwest of Casper | — | — | Shirley Basin Road |
| WYO 514 | — | — | — | — | 01938-01-011938 | 01964-01-011964 | Replaced by WYO 24 |
| WYO 520 | 100.53 | 161.79 | US 14 in Cody | US 14 in Burgess Junction | 01936-01-011936 | 01940-01-011940 | Replaced by US 14, former alignment became former WYO 14 |
| WYO 530 | 45.34 | 72.97 | SR-43 at the Utah State Line | I-80 BL / US 30 Bus. in Green River | — | — | West Flaming Gorge Road |
| WYO 585 | 28.05 | 45.14 | US 85 at Four Corners | US 14 and I-90 Bus. in Sundance | 01933-01-011933 | current | |
| WYO 789 | 407.14 | 655.23 | Colorado state line near Baggs | Montana state line near Frannie | — | — | Canada to Mexico Highway |
| Former ||||||||
* Welcome sign
* Route marker sign in the field

## Special routes

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
| WYO 59C | 0.45 | 0.72 | WYO 59 in Douglas | WYO 59 in Douglas | — | — | |