  Signage used for Wyoming State Highways, which includes the Bucking Horse and Rider. | |
| Highway names | |
|---|---|
| Interstates | Interstate X (I-X) |
| US Highways | U.S. Highway X (US X) |
| State | Wyoming Highway X (State Route X; WYO X) |
| System links | |
| |
The state highway system in the U.S. state of Wyoming consists of a series of numbered routes; usually known as WYO X, [1] where X is the route number.
| 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 | 1940 | 1965 [2] | 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 | 1942 | current | Teton Pass Highway | |
 WYO 24 | 46.72 | 75.19 | US 14 at Devils Tower Junction | SD 34 near Aladdin | 1961 | current | Bear Lodge Highway | |
 WYO 26 | 52.38 | 84.30 | US 30/US 287 near Bosler | US 87 in Wheatland | 1926 | 1949 [3] | 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 | 1949 [3] | 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 | 1945 | current | ||
 WYO 65 | 55.84 | 89.87 | US 530 in Evanston UT 30 near Kemmerer | UT 16 near Bear River ID 61 near Geneva, Idaho | 1924 | 1938 | 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 | — | 1975 | 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 | 1975 | 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 | 1930 | 1940 | Replaced by WYO 330, now WYO 789; Baggs Road | |
 WYO 89 | 55.84 | 89.87 | I-80/US 189/WYO 150 in Evanston UT 30 near Kemmerer | UT 16 near Bear River ID 61 near Geneva, Idaho | 1926 | 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 | 1936 | 1938 | 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 Glenrock US 20, US 26/US 87 in Glenrock | US 20/US 26/US 87/I-25 Bus. in Glenrock WYO 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 | 1934 | 1936 | 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 | — | 2009[ citation needed ] | ||
 WYO 218 | 1.77 | 2.85 | Laramie CR 102 south of Granite Canon | I-80/US 30 in Granite Canon | — | 2009[ citation needed ] | 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 | 1940 | 1954 | 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 [4] | 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 [4] | 2.17 | — | — | — [4] | — | 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 Granger I-80 and US 30 at Little America | US 30 south of Granger I-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 | — | 2017 | 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 | 1936 | 1945 | 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 | 1971 | 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 | 1971 | 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 | 1971 | 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 | — | — | — | — | 1938 | 1964 [5] | Replaced by WYO 24 | |
 WYO 520 | 100.53 | 161.79 | US 14 in Cody | US 14 in Burgess Junction | 1936 | 1940 | 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 | 1933 [6] | current | ||
 WYO 789 | 407.14 | 655.23 | Colorado state line near Baggs | Montana state line near Frannie | — | — | Canada to Mexico Highway | |
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 | This section needs expansion. You can help by adding to it. (December 2021) |
| 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 | — | — | ||
Wyoming Highway 223 is a 5.69-mile-long (9.16 km) east–west state highway known as Terry Ranch Road in extreme southern Laramie County south of Cheyenne in the southeastern part of the U.S. state of Wyoming. The highway is the former routing of U.S. Route 87 before it was relocated onto Interstate 25.
Wyoming Highway 221 was a 1.84-mile (3.0 km) east–west Wyoming State Road known as Fox Farm Road located in southeastern Cheyenne.
Wyoming Highway 222 is a 1.81-mile-long (2.91 km) Wyoming State Road known as Fort Access Road located in Laramie County, on the western edge of Cheyenne.
Wyoming Highway 210 (WYO 210), also known as Happy Jack Road, is a 37.79-mile (60.82 km) state highway in Laramie and Albany counties in Wyoming, United States, that runs from Cheyenne to Interstate 80/U.S. Route 30 (I-80/US 30), 10 miles (16 km) east of Laramie.
Wyoming Highway 376 (WYO 376) is a 4.31-mile (6.94 km) state highway in southern Sweetwater County, Wyoming, United States, that forms a loop off of the south side of the city of Rock Springs.
Wyoming Highway 314 (WYO 314) is an 8.57-mile-long (13.79 km) state highway in the southeastern part of Platte County, Wyoming, named Slater Road.
Wyoming Highway 319 (WYO 319) is a 28.75-mile-long (46.27 km) north-south state highway in Platte and Converse counties.
Wyoming Highway 96 is a 3.11-mile-long (5.01 km) east–west Wyoming State Road located in south-central Converse County west of Douglas.
Wyoming Highway 194 is a 2.81-mile-long (4.52 km) east–west State Road in the U.S. state of Wyoming that runs through the community of Story in southern Sheridan County.
Wyoming Highway 193 is a 6.19-mile-long (9.96 km) north–south Wyoming State Road that runs through southern Sheridan County and the extreme northern part of Johnson County and serves the community of Story.
Wyoming Highway 335 (WYO 335) is a 9.71-mile-long (15.63 km) roughly north–south Wyoming State Road located in central Sheridan County south of the city of Sheridan.
Wyoming Highway 337 (WYO 337), also known as Fort Road, is a 1.54-mile (2.48 km) east-west state highway in Sheridan County, Wyoming, United States, that connects the Sheridan Veterans Administration Medical Center with Interstate 90 Business Loop/U.S. Route 14/U.S. Route 87 in Sheridan.
Wyoming Highway 331 (WYO 331) is a 9.92-mile-long (15.96 km) east-west Wyoming State Road located in central Sheridan County and links Beckton with Sheridan.
Wyoming Highway 330 (WYO 330) is a fairly short 3.30-mile (5.31 km) east-west state highway in central Sheridan County, Wyoming, United States, that serves the northwestern part of Sheridan.
Wyoming Highway 316 (WYO 316) is an 11.91-mile-long (19.17 km) east–west Wyoming state road in central Platte County.
Wyoming Highway 391 (WYO 391) is a short .30-mile-long (0.48 km), albeit signed, Wyoming State Road for the Wyoming Department of Transportation (WYDOT) Maintenance Shop for the Jackson Area.
Wyoming Highway 412 (WYO 412), also known as the Carter–Lyman Road and previously as the Carter Cutoff Road, is a 24.73-mile (39.80 km) state highway in Uinta and Lincoln counties in western Wyoming, United States, that connects Interstate 80, northwest of Lyman, with U.S. Route 189 (US 189), south of Kemmerer.
Wyoming Highway 291 (WYO 291) is a 9.46-mile-long (15.22 km) north-south Wyoming state road located in central Park County and provides access to Buffalo Bill State Park, Buffalo Bill Dam, and Buffalo Bill Reservoir as well as other areas southwest of Cody.
Wyoming Highway 353 (WYO 353) is a 15.51-mile-long (24.96 km) east-west Wyoming state road located in east-central Sublette County. WYO 353 provides travel between U.S. Route 191 at Boulder to Big Sandy and eastern Sublette County.
