  Signage used for Wyoming State Highways, which includes theBucking 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 | |
| |
Thestate highway system in the U.S. state ofWyoming consists of a series of numbered routes; usually known asWYO 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 atCO border | WYO 230 inWoods Landing | — | — | Jelm Mountain Road | |
 WYO 11 | 10.94 | 17.61 | NFS Route 500 inAlbany | WYO 130 nearCentennial | — | — | Albany Road | |
 WYO 12 | 12.18 | 19.60 | Albany CR 57 nearWoodedge | WYO 130 nearLaramie | — | — | Herrick Lane | |
 WYO 13 | 17.76 | 28.58 | I-80 atArlington | US 30 andUS 287 inRock River | — | — | Arlington Road | |
 WYO 14 | 449.21 | 722.93 | US 14 inCody | US 14 inBurgess Junction | 01940-01-011940 | 01965-01-011965 | Replaced byUS 14A | |
| WYO 14 | 0.36 | 0.58 | Laramie Regional Airport | WYO 130 nearLaramie Regional Airport | — | — | Airport Road | |
 WYO 22 | 17.53 | 28.21 | ID 33 nearWilson | US 26/US 89/US 189/US 191 inJackson | 01942-01-011942 | current | Teton Pass Highway | |
 WYO 24 | 46.72 | 75.19 | US 14 atDevils Tower Junction | SD 34 nearAladdin | 01961-01-011961 | current | Bear Lodge Highway | |
 WYO 26 | 52.38 | 84.30 | US 30/US 287 nearBosler | US 87 inWheatland | 01926-01-011926 | 01949-01-011949[2] | Replaced byWYO 34 | |
 WYO 28 | 96.50 | 155.30 | WYO 372 nearFarson | US 287/WYO 789 nearLander | — | — | South Pass Highway | |
 WYO 30 | 26.02 | 41.88 | US 14/US 16/US 20 nearBurlington | US 16/US 20/WYO 789 inBasin | — | — | Otto Road | |
 WYO 31 | 22.09 | 35.55 | US 16/US 20/WYO 789 inManderson | Big Horn CR R49 atHyattville | — | — | Cold Springs Road | |
 WYO 32 | 31.48 | 50.66 | US 14/US 16/US 20 nearEmblem | US 310/US 14A/WYO 789 nearLovell | — | — | Emblem Highway | |
 WYO 33 | 1.39 | 2.24 | BLM route nearForester Gulch | WYO 32 nearLovell | — | — | Mileage marker starts at 2.89, coinciding withWYO 32 mileage at junction | |
 WYO 34 | 52.38 | 84.30 | US 30/US 287 south ofBosler | I-25/US 87 south ofWheatland | 01949-01-011949[2] | current | Laramie–Wheatland Road | |
 WYO 35 | 1.08 | 1.74 | Big Horn CR R7 nearCowley | US 310/WYO 789 in Cowley | — | — | ||
 WYO 36 | 2.76 | 4.44 | WYO 30 inBasin | US 16/US 20/WYO 789 north of Basin | — | — | ||
 WYO 37 | 9.00 | 14.48 | US 14A nearLovell | Bighorn Canyon NRA | — | — | ||
 WYO 50 | 52.67 | 84.76 | WYO 387 atPine Tree Junction | US 14/US 16/WYO 59/I-90 Bus. inGillette | — | — | Skyline Drive; 4 J Road | |
 WYO 51 | 24.79 | 39.90 | I-90/US 14/US 16/I-90 Bus. inGillette | US 14/US 16/I-90 Bus. inMoorcroft | — | — | 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 inDouglas | MT 59 nearGillette | 01945-01-011945 | current | ||
 WYO 65 | 55.84 | 89.87 | US 30S inEvanston UT 30 nearKemmerer | UT 16 nearBear River ID 61 nearGeneva, Idaho | 01924-01-011924 | 01938-01-011938 | Replaced byWYO 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 inBaggs | WYO 230 inRiverside | — | — | Battle Highway | |
 WYO 71 | 10.83 | 17.43 | Carbon CR 401 nearRawlins | WYO 78 inRawlins | — | — | Sage Creek Road | |
 WYO 72 | 15.45 | 24.86 | Carbon CR 402 inElk Mountain | Adams Street inHanna | — | — | Hanna Road | |
 WYO 73 | 4.64 | 7.47 | Sweetwater | US 287/WY 789 inLamont | — | — | Bairoil Road | |
 WYO 74 | 0.13 | 0.21 | WYO 130 inSaratoga | Carbon CR 504 inSaratoga | — | — | Unsigned; Bridge Street | |
 WYO 75 | 22.10 | 35.57 | WYO 487 nearMedicine Bow | WYO 487 nearAlcove | — | 01975-01-011975 | Replaced byWYO 487 | |
 WYO 76 | 6.54 | 10.53 | I-80/US 30/US 287/I-80 Bus./US 30 Bus. inRawlins | I-80/US 30/US 287 nearSinclair | — | — | Old US 30/US 287 | |
 WYO 77 | 22.18 | 35.70 | WYO 487 north ofMedicine Bow | WYO 487 nearAlcove | 01975-01-011975 | current | Old Shirley Basin Road | |
 WYO 78 | 1.23 | 1.98 | Wyoming State Penitentiary inRawlins | WYO 71 in Rawlins | — | — | Higley Boulevard | |
 WYO 87 | 53.20 | 85.62 | CO 13 nearBaggs, Wyoming | US 30 nearCreston | 01930-01-011930 | 01940-01-011940 | Replaced byWYO 330, nowWYO 789; Baggs Road | |
 WYO 89 | 55.84 | 89.87 | I-80/US 189/WYO 150 inEvanston UT 30 nearKemmerer | UT 16 nearBear River ID 61 nearGeneva, Idaho | 01926-01-011926 | current | route only covered northern portion 1926-, decommissioned (becameWYO 91) 1936, recommissioned overWYO 65 andWYO 91 1938 | |
 WYO 90 | 3.00 | 4.83 | Converse CR 17 southeast ofGlenrock | US 20/US 26/US 87/I-25 Bus. east of Glenrock | — | — | Boxelder Road | |
 WYO 91 | 38.40 | 61.80 | UT 30 nearKemmerer | ID 61 nearGeneva, Idaho | 01936-01-011936 | 01938-01-011938 | Replaced byWYO 89 | |
| WYO 91 | 23.10 | 37.18 | Converse CR 11/CR 24 southwest ofDouglas | WYO 94 in Douglas | — | — | Cold Springs Road | |
 WYO 92 | 16.50 | 26.55 | US 26/US 85 inTorrington | N-92 nearHuntley | — | — | ||
 WYO 93 | 26.02 | 41.88 | WYO 59 inDouglas | Converse CR 32/CR 33 northwest of Douglas | — | — | ||
 WYO 94 | 16.61 | 26.73 | Converse CR 5 north ofEsterbrook | I-25 Bus./US 20 Bus./US 26 Bus./US 87 Bus./WYO 59 inDouglas | — | — | Esterbrook Road | |
 WYO 95 | 19.23 | 30.95 | I-25/I-25 Bus. south ofGlenrock 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 nearDouglas | WYO 91 west of Douglas | — | — | ||
 WYO 110 | 0.585 | 0.941 | WYO 24 nearDevils Tower | Devils Tower NM | — | — | Devils Tower Road, Entrance Road | |
 WYO 111 | 8.63 | 13.89 | I-90 andUS 14 northeast ofSundance | WYO 24 atAladdin | — | — | ||
 WYO 112 | 29.50 | 47.48 | WYO 24 inHulett | Montana state line south ofAlzada, Montana | — | — | ||
 WYO 113 | 6.61 | 10.64 | US 14 north ofMoorcroft | Pine Haven Road inPine Haven | — | — | Old Sundance Road | |
 WYO 114 | 10.82 | 17.41 | US 14 Alt. atGarland | US 310 andWYO 789 inDeaver | — | — | Old Sundance Road | |
 WYO 116 | — | — | — | — | — | — | Replaced by US 116 (later US 14) | |
| WYO 116 | 60.97 | 98.12 | WYO 450 west ofNewcastle | US 14 andI-90 Bus. inSundance | — | — | ||
 WYO 120 | 121.96 | 196.28 | US 20 andWYO 789 inThermopolis | Montana state line north ofClark | — | — | ||
 WYO 130 | 98.52 | 158.55 | I-80,US 30, andUS 287 south ofWalcott | I-80 Bus., US 30, and US 287 inLaramie | — | — | Snowy Range Road | |
 WYO 131 | 9.00 | 14.48 | Sinks Canyon Road southwest ofLander | US 287 in Lander | — | — | Sinks Canyon Road | |
 WYO 132 | 17.43 | 28.05 | US 287 north ofLander | US 26 andWYO 133 atKinnear | — | — | Ethete Road | |
 WYO 133 | 6.07 | 9.77 | US 26 andWYO 132 atKinnear | Pavillion Road inPavillion | — | — | Pavillion Road | |
 WYO 134 | 24.17 | 38.90 | WYO 133 south ofPavillion | US 26 andWYO 789 southwest ofShoshoni | — | — | Missouri Valley Road | |
 WYO 135 | 35.62 | 57.32 | US 287 andWYO 789 atSweetwater Station | WYO 789 south ofRiverton | — | — | Sand Draw Road | |
 WYO 136 | 42.70 | 68.72 | WYO 135 south ofRiverton | CR 5 in theGas Hills Uranium Mining District | — | — | Gas Hills Road | |
 WYO 137 | 8.79 | 14.15 | CR 334 southwest ofRiverton | WYO 789 south ofRiverton | — | — | Seventeen Mile Road. Returned to tribal control in 2015. | |
 WYO 138 | 8.14 | 13.10 | WYO 789 east ofHudson | WYO 137 atSaint Stephens | — | — | Rendezvous Road. Returned to tribal control in 2010. | |
 WYO 139 | 1.45 | 2.33 | WYO 135 west ofSand Draw | Sand Draw | — | — | Sand Draw Road | |
 WYO 150 | 23.05 | 37.10 | UT 150 atUT border | I-80/US 189/WYO 89 nearEvanston | — | — | Mirror Lake Scenic Byway | |
 WYO 151 | 9.89 | 15.92 | US 85 west ofLaGrange | N-88 atNE border | — | — | La Grange Road | |
 WYO 152 | 9.80 | 15.77 | Goshen CR 124 | US 85/WYO 161 east ofYoder | — | — | ||
 WYO 153 | 1.02 | 1.64 | WYO 152 | Goshen CR 33 | — | — | Goodland Road | |
 WYO 154 | 21.11 | 33.97 | WYO 152 inYoder | US 85/WYO 92 south ofTorrington | — | — | Goodland Road | |
 WYO 155 | — | — | — | — | — | — | Now part ofWYO 156 andWYO 157 | |
 WYO 156 | 14.29 | 23.00 | US 26/US 85 inLingle | US 85/WYO 92 inTorrington | — | — | ||
 WYO 157 | 7.99 | 12.86 | US 26 southeast ofFort Laramie | WYO 156 inLingle | — | — | ||
 WYO 158 | 8.02 | 12.91 | WYO 92 southeast ofHuntley | CR 63 atNE border | — | — | ||
 WYO 159 | 12.78 | 20.57 | US 26/US 85 inTorrington | Goshen CR 47 north of Torrington | — | — | ||
 WYO 160 | 1.08 | 1.74 | Goshen CR 53 west ofFort Laramie | US 26 in Fort Laramie | — | — | ||
 WYO 161 | 7.03 | 11.31 | US 85/WYO 152 east ofYoder | WYO 92 inHuntley | — | — | ||
 WYO 170 | 15.41 | 24.80 | CR 15 atHamilton Dome | WYO 120 northwest ofThermopolis | — | — | Owl Creek Road (east–west); Hamilton Dome Road (north–south) | |
 WYO 171 | 8.63 | 13.89 | CR 17 and CR 36 atGlass Creek | WYO 120 east of Glass Creek | — | — | Grass Creek Road | |
 WYO 172 | 11.26 | 18.12 | US 20 andWYO 789 atLucerne | CR 6 east of Lucerne | — | — | Kirby Creek Road; Black Mountain Road | |
 WYO 173 | 1.61 | 2.59 | US 20 andWYO 789 south ofThermopolis | CR 31 south of Thermopolis | — | — | ||
 WYO 174 | 0.60 | 0.97 | CR 1 south ofHamilton Dome | WYO 170 south of Hamilton Dome | — | — | Red Creek Ranch Road | |
 WYO 175 | 0.32 | 0.51 | US 20 andWYO 789 west ofKirby | West Main Street in Kirby | — | — | Kirby Road | |
 WYO 176 | — | — | — | — | — | — | Now Owl Hill Creek Road. May have been part of the currentWYO 120 alignment | |
 WYO 185 | — | — | US 20/US 26/US 87 inDouglas | MT 59 nearGillette | 01934-01-011934 | 01936-01-011936 | Replaced byWYO 387, nowWYO 59 | |
 WYO 190 | 9.66 | 15.55 | CR 78 atBarnum | WYO 191 west ofKaycee | — | — | Barnum Road | |
 WYO 191 | 11.71 | 18.85 | CR 115 and CR 266 atMayoworth | WYO 192 andWYO 196 inKaycee | — | — | Mayoworth Road | |
 WYO 192 | 35.64 | 57.36 | WYO 191 andWYO 196 inKaycee | WYO 387 northeast ofEdgerton | — | — | ||
 WYO 193 | 6.19 | 9.96 | I-90 andUS 87 nearKearny | US 87 atBanner | — | — | ||
 WYO 194 | 2.81 | 4.52 | Story Fish Hatchery west ofStory | WYO 193 east of Story | — | — | ||
 WYO 196 | 49.84 | 80.21 | I-25 andUS 87 south ofKaycee | I-25 Bus. andUS 87 Bus. inBuffalo | — | — | Old US 87 | |
 WYO 197 | — | — | — | — | — | — | Now County Road 110 | |
 WYO 210 | 37.79 | 60.82 | I-80/US 30 east ofLaramie | I-25/US 87 inCheyenne | — | — | Happy Jack Road | |
 WYO 211 | 43.88 | 70.62 | WYO 219 north ofCheyenne | I-25/US 87 andWYO 313/I-25 Bus. inChugwater | — | — | Horse Creek Road; Iron Mountain Road | |
 WYO 212 | 14.06 | 22.63 | I-25/US 87 nearCheyenne | WYO 219 inRanchettes | — | — | College Drive; Four Mile Road | |
 WYO 213 | 19.80 | 31.87 | I-80/US 30 andWYO 214 south ofBurns | US 85 south ofMeriden | — | — | Burns Road | |
 WYO 214 | 8.39 | 13.50 | Laramie CR 203-1 inCarpenter | I-80/US 30 andWYO 213 south ofBurns | — | — | Carpenter Road | |
 WYO 215 | 17.19 | 27.66 | I-80/US 30 inPine Bluffs | WYO 216 inAlbin | — | — | ||
 WYO 216 | 18.54 | 29.84 | US 85 south ofMeriden | Laramie CR 164 atNE border | — | — | Albin Road | |
| WYO 216 | — | — | — | — | — | — | Replaced by US 216 | |
 WYO 217 | 4.43 | 7.13 | Laramie CR 140 northwest ofCarpenter | I-80/US 30 southwest ofHillsdale | — | 02009-01-012009[citation needed] | ||
 WYO 218 | 1.77 | 2.85 | Laramie CR 102 south ofGranite Canon | I-80/US 30 in Granite Canon | — | 02009-01-012009[citation needed] | Harriman Road | |
 WYO 219 | 5.48 | 8.82 | I-25 Bus./US 85 inCheyenne | US 85 north of Cheyenne | — | — | Yellowstone Road | |
 WYO 220 | 72.79 | 117.14 | US 287 andWYO 789 north ofMuddy Gap | I-25,US 20,US 26, andUS 87 inCasper | — | — | Alcova Highway | |
 WYO 221 | 1.84 | 2.96 | I-25 Bus./US 85 inFox Farm-College | WYO 212 in Fox Farm-College | — | — | Fox Farm Road | |
 WYO 222 | 1.81 | 2.91 | WYO 225 west ofCheyenne | WYO 210 west of Cheyenne | — | — | Fort Access Road | |
 WYO 223 | 5.69 | 9.16 | I-25/US 87 southwest ofCheyenne | US 85 south of Cheyenne | — | — | Terry Ranch Road | |
| WYO 224 | 0.12 | 0.19 | I-25/US 87 inCheyenne | WYDOT Headquarters | — | — | Wyoming Dept. of Transportation Headquarters Entrance | |
 WYO 225 | 11.21 | 18.04 | I-80/US 30 east ofGranite Canon | I-80/US 30 west ofCheyenne | — | — | Otto Road | |
 WYO 226 | — | — | — | — | — | — | Replaced byWYO 210 | |
 WYO 230 | 74.78 | 120.35 | WYO 130 south ofSaratoga | I-80 Bus./US 30/US 287 inLaramie | — | — | Rivers Road | |
 WYO 231 | 0.60 | 0.97 | CR 207 inCokeville | US 30,WYO 89, andWYO 232 in Cokeville | — | — | Cokeville–Utah Road | |
 WYO 232 | 12.22 | 19.67 | US 30,WYO 89, andWYO 231 inCokeville | Smiths Fork Road north of Cokeville | — | — | Smiths Fork Road | |
 WYO 233 | 19.29 | 31.04 | US 189 inKemmerer | CR 305 north of Kemmerer | — | — | Hams Fork Road | |
 WYO 234 | — | — | Kemmerer Municipal Airport nearFrontier | WYO 233 in Frontier | — | — | Now County Route 234 | |
 WYO 235 | 4.49 | 7.23 | US 189 inLa Barge | CR 134 atCalpet | — | — | ||
 WYO 236 | 2.60 | 4.18 | CR 140 and CR 142 atFairveiw | US 89 south ofAfton | — | — | ||
 WYO 237 | 3.42 | 5.50 | 1st Street atAuburn | US 89 atGrover | — | — | ||
 WYO 238 | 12.08 | 19.44 | US 89 inAfton | US 89 north ofAuburn | — | — | ||
 WYO 239 | 1.64 | 2.64 | Idaho state line atFreedom | US 89 east of Freedom | — | — | ||
 WYO 240 | 12.28 | 19.76 | US 30 inOpal | US 189 northeast ofKemmerer | — | — | Opal Road | |
 WYO 241 | 4.27 | 6.87 | US 89 north ofSmoot | WYO 236 south ofAfton | — | — | ||
 WYO 250 | — | — | — | — | — | — | Former spur route that ran north fromWYO 487 | |
 WYO 251 | 8.99 | 14.47 | CR 505 atCasper Mountain | I-25 Bus.,US 20 Bus.,US 26 Bus., andUS 87 Bus. inCasper | — | — | Casper Mountain Road; Walcott Road | |
 WYO 252 | 4.37 | 7.03 | WYO 251 south ofCasper | WYO 258 in Casper | — | — | Gothmore Park Spur; Garden Creek Road | |
 WYO 253 | 10.90 | 17.54 | CR 606 southeast ofCasper | US 20,US 26, andUS 87 inEvansville | — | — | ||
 WYO 254 | 4.06 | 6.53 | US 20 Bus. andUS 26 Bus. inMills | I-25 andUS 87 atHartrandt | — | — | ||
 WYO 255 | 0.48 | 0.77 | I-25 Bus.,US 20 Bus.,US 26 Bus., andUS 87 Bus. inCasper | 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, andWYO 253 inEvansville | CR 701 northeast of Evansville | — | — | Cole Creek Road | |
 WYO 257 | 7.30 | 11.75 | WYO 220 south ofRed Butte | US 20,US 26,US 20 Bus., andUS 26 Bus. inCasper | — | — | Casper West Belt Loop | |
 WYO 258 | 10.58 | 17.03 | US 20 Bus. andUS 26 Bus. inCasper, Wyoming | US 20,US 26, andUS 87 inEvansville | — | — | Casper Beltline | |
 WYO 259 | 18.00 | 28.97 | I-25 andUS 87 north ofAntelope Hills | WYO 387 inMidwest | — | — | ||
 WYO 270 | 73.37 | 118.08 | US 26 east ofGuernsey | US 18 andUS 85 north ofLusk | — | — | ||
 WYO 271 | 3.19 | 5.13 | CR 23 atWest Lance Creek | WYO 270 atLance Creek | — | — | Manning Road | |
 WYO 272 | 3.32 | 5.34 | WYO 270 east ofLance Creek | CR 14 north ofLance Creek | — | — | North Lance Creek Road | |
 WYO 273 | 0.33 | 0.53 | US 18 andUS 20 east ofLusk | Niobrara Country Club | — | — | Country Club Road | |
 WYO 274 | — | — | WYO 270 inManville | 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 nearDumbell | WYO 120 inMeeteetse | — | — | ||
 WYO 291 | 9.46 | 15.22 | CR 6WX southwest ofCody | US 14,US 16, andUS 20 in Cody | — | — | Clarks Fork Canyon Road | |
 WYO 292 | — | — | Morrison Jeep Trail west ofClark | WYO 120 east of Clark | — | — | Now County Road 1Ab | |
 WYO 293 | — | — | WYO 120 nearCody, Wyoming | Yellowstone Regional Airport | — | — | Now County Road 3CX | |
 WYO 294 | 18.82 | 30.29 | US 14 Alt. nearRalston | WYO 120 nearClark | — | — | ||
 WYO 295 | 29.35 | 47.23 | WYO 32 southeast ofPowell | CR 1NG nearElk Basin | — | — | ||
 WYO 296 | 45.96 | 73.97 | US 212 nearYellowstone NP | WYO 120 north ofCody | — | — | 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 atWheatland Reservoir #1 | I-25 Bus., US 87 Bus., andWYO 312 inWheatland | — | — | Oak Street Wheatland | |
 WYO 311 | 1.99 | 3.20 | WYO 310 inWestview Circle | Platte CR 139 and CR 90 | — | — | Hightower Road | |
 WYO 312 | 7.30 | 11.75 | WYO 34 south ofWheatland | I-25 Bus., US 87 Bus., andWYO 310 in Wheatland | — | — | Preuit Road | |
 WYO 313 | 30.81 | 49.58 | I-25 Bus. andWYO 321 inChugwater | US 85 south ofHawk Springs | — | — | ||
 WYO 314 | 8.57 | 13.79 | I-25/US 87 west ofSlater | Slater Road east ofWYO 315 | — | — | Slater Road | |
 WYO 315 | 3.01 | 4.84 | WYO 314 inSlater | Bordeaux Road north of Slater | — | — | Pioneer Road | |
 WYO 316 | 11.91 | 19.17 | I-25 Bus./US 87 Bus. inWheatland | Dickinson Hill Road/Deer Creek Road | — | — | ||
 WYO 317 | 1.66 | 2.67 | US 26 west ofGuernsey | Guernsey State Park | — | — | ||
 WYO 318 | 1.09 | 1.75 | WYO 270 inHartville | Sunrise | — | — | ||
 WYO 319 | 28.75 | 46.27 | I-25,US 26, andUS 87 inGlendo | WYO 319 in Glendo | — | — | Old Yellowstone Highway | |
| WYO 319 | 0.20 | 0.32 | I-25,US 26, andUS 87 south ofGlendo | US 18 andUS 20 east ofOrin | — | — | Spur of WYO 319 | |
 WYO 320 | 12.33 | 19.84 | I-25 BL /US 87 Bus. inWheatland | US 26 inDwyer | — | — | Old Yellowstone Highway | |
 WYO 321 | 3.34 | 5.38 | I-25 /US 87 /WYO 211 inChugwater | I-25 /US 87 north of Chugwater | — | — | Old Yellowstone Highway | |
 WYO 322 | — | — | — | — | — | — | Replaced byWWY 211 | |
 WYO 330 | 53.20 | 85.62 | CO 13 nearBaggs | US 30 nearCreston | 01940-01-011940 | 01954-01-011954 | Replaced byWYO 789 | |
| WYO 330 | 3.30 | 5.31 | CR 74 west ofSheridan | I-90 Bus.,US 14 Bus.,US 87 Bus., andWYO 336 in Sheridan | — | — | Fifth Street Sheridan | |
 WYO 331 | 9.92 | 15.96 | CR 53 atBeckton | I-90 Bus.,US 14 Bus., andUS 87 Bus. inSheridan | — | — | Big Goose Canyon Road | |
 WYO 332 | 5.44 | 8.75 | US 87 andWYO 335 south ofSheridan | I-90 Bus.,US 14 Bus., andUS 87 Bus. in Sheridan | — | — | Big Horn Avenue | |
 WYO 333 | 0.75 | 1.21 | Sheridan County Airport | WYO 332 inSheridan | — | — | Airport Road | |
 WYO 334 | 0.74 | 1.19 | WYO 332 inSheridan | I-90 Bus.,US 14 Bus., andUS 87 Bus. in Sheridan | — | — | ||
 WYO 335 | 9.71 | 15.63 | CR 26 southwest ofBig Horn | US 87 andWYO 332 south ofSheridan | — | — | Brinton Road; Red Grade Road | |
 WYO 336 | 11.52 | 18.54 | I-90 Bus.,US 14 Bus.,US 87 Bus., andWYO 330 inSheridan | CR 42 atWyarno | — | — | Ulm Road | |
 WYO 337 | 1.54 | 2.48 | Fort MacKenzie Road inSheridan | I-90 Bus.,US 14 Bus., andUS 87 Bus. in Sheridan | — | — | Fort Road | |
 WYO 338 | 15.03 | 24.19 | I-90,I-90 Bus.,US 14 Bus., andUS 87 Bus. inSheridan | Montana state line north of Sheridan | — | — | Decker Road; Higby Road | |
 WYO 339 | 1.02 | 1.64 | I-90,US 14, andUS 87 north ofSheridan | WYO 338 north of Sheridan | — | — | Jensick Connector | |
 WYO 340 | 1.35 | 2.17 | CR 2 west ofStory | WYO 194 at Story | — | — | ||
 WYO 341 | 3.19 | 5.13 | CR 38 and CR 273 atArvada | US 14 andUS 16 north of Arvada | — | — | Arvada Spur | |
 WYO 342 | 1.14 | 1.83 | US 87 south ofSheridan | I-90 south of Sheridan | — | — | Meade Road | |
 WYO 343 | 5.24 | 8.43 | US 14 inDayton | WYO 345 inParkman | — | — | ||
| WYO 344 | 27.77[3] | 44.69 | — | — | — | — | Unsigned; Old US 87/US 87 | |
 WYO 345 | 19.27 | 31.01 | Montana state line north ofParkman | I-90,US 14, andUS 87 atMonarch | — | — | ||
| WYO 346 | 1.35[3] | 2.17 | — | — | —[3] | — | Unsigned; Old US 87 | |
 WYO 350 | 5.06 | 8.14 | CR 111 and CR 142 west ofBig Piney | US 189 in Big Piney | — | — | Middle Piney Road | |
 WYO 351 | 24.18 | 38.91 | US 189 north ofMarbleton | US 191 east of Marbleton | — | — | ||
 WYO 352 | 25.31 | 40.73 | US 191 west ofPinedale | Bridger-Teton NF | — | — | ||
 WYO 353 | 15.51 | 24.96 | US 191 atBoulder | CR 118 and CR 133 nearBig Sandy | — | — | ||
 WYO 354 | 6.17 | 9.93 | CR 112 northwest ofDaniel | US 189 andUS 191 north of Daniel | — | — | Daniel–Merna Road | |
 WYO 370 | 4.63 | 7.45 | I-80 andUS 30 east ofRock Springs | Rock Springs-Sweetwater County Airport | — | — | Baxter Road | |
 WYO 371 | 7.30 | 11.75 | I-80 andUS 30 south ofSuperior | Upper Superior Road in Superior | — | — | Superior Road | |
 WYO 372 | 45.89 | 73.85 | WYO 374 west ofJames Town | US 189 west ofFontenelle | — | — | La Barge Road | |
 WYO 373 | — | — | — | — | — | — | ||
 WYO 374 | 25.37 | 40.83 | I-80 south ofGranger I-80 andUS 30 atLittle America | US 30 south of Granger I-80 Bus. and US 30 inGreen River | — | — | Jamestown Road | |
 WYO 375 | 0.99 | 1.59 | 3rd Street inGranger | US 30 in Granger | — | — | Granger Road | |
 WYO 376 | 4.31 | 6.94 | I-80 Bus. andUS 30 Bus. inRock Springs | I-80 Bus. and US 30 Bus. in Rock Springs | — | — | Rock Springs Beltway; Circumferential Highway | |
 WYO 377 | 1.96 | 3.15 | I-80 andUS 30 atPoint of Rocks | CR 15 east of Point of Rocks | — | 02017-01-012017 | Point of Rocks Road | |
 WYO 387 | 57.81 | 93.04 | I-25 andUS 87 west ofMidwest | WYO 59 inWright | — | — | ||
| WYO 387 | — | — | US 20/US 26/US 87 inDouglas | MT 59 nearGillette | 01936-01-011936 | 01945-01-011945 | Replaced byWYO 59 | |
 WYO 390 | 15.00 | 24.14 | WYO 22 east ofWilson | 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 ofRobertson | WYO 411 southwest ofMountain View | 01971-01-011971 | current | ||
 WYO 411 | 3.97 | 6.39 | CR 260 inMillburne | WYO 410 southwest ofMountain View | — | — | Milburne Road | |
 WYO 412 | 24.73 | 39.80 | I-80 andWYO 414 northwest ofLyman | US 189 south ofKemmerer | 01971-01-011971 | current | Carter–Lyman Road | |
 WYO 413 | 2.73 | 4.39 | I-80 BL inLyman | I-80 north of Lyman | — | — | ||
 WYO 414 | 46.12 | 74.22 | SR-43 at theUtah state line | I-80 /WYO 412 nearMcKinnon | 01971-01-011971 | current | ||
 WYO 416 | — | — | — | — | — | — | Replaced byUS 14 | |
 WYO 420 | — | — | — | — | — | — | Replaced by WYO 120 | |
 WYO 430 | 53.52 | 86.13 | Colorado state line nearHiawatha, Colorado | WYO 376 inRock Springs | — | — | ||
 WYO 431 | 30.19 | 48.59 | WYO 120 south ofMeeteetse | US 20,WYO 432, andWYO 789 southwest ofWorland | — | — | ||
 WYO 432 | 10.29 | 16.56 | US 20,WYO 431, andWYO 789 southwest ofWorland | US 20 and WYO 789 in Worland | — | — | ||
 WYO 433 | 18.81 | 30.27 | US 20 andWYO 789 inWorland | US 16, US 20, and WYO 789 west ofManderson | — | — | ||
 WYO 434 | 20.63 | 33.20 | CR R82 atBig Trails | US 16 inTen Sleep | — | — | Nowood Road | |
 WYO 435 | 0.78 | 1.26 | US 16 east ofTen Sleep | Old US 16 east of Ten Sleep | — | — | Fish Hatchery Road | |
 WYO 436 | 5.93 | 9.54 | US 16 east ofTen Sleep | CR R56 southeast of Ten Sleep | — | — | Rome Hill Road | |
 WYO 450 | 66.22 | 106.57 | WYO 59 south ofWright | US 16 west ofNewcastle | — | — | Little Thunder Road | |
 WYO 451 | 5.026 | 8.089 | CR 36B west ofOsage | US 16 in Osage | — | — | Oil City Road | |
 WYO 452 | 1.70 | 2.74 | US 16 west ofNewcastle | US 16 in Newcastle | — | — | NowUS 16 Truck | |
 WYO 487 | 71.56 | 115.16 | US 30 andUS 287 inMedicine Bow | WYO 220 southwest ofCasper | — | — | Shirley Basin Road | |
 WYO 514 | — | — | — | — | 01938-01-011938 | 01964-01-011964 | Replaced byWYO 24 | |
 WYO 520 | 100.53 | 161.79 | US 14 inCody | US 14 inBurgess Junction | 01936-01-011936 | 01940-01-011940 | Replaced byUS 14, former alignment became formerWYO 14 | |
 WYO 530 | 45.34 | 72.97 | SR-43 at theUtah State Line | I-80 BL /US 30 Bus. inGreen River | — | — | West Flaming Gorge Road | |
 WYO 585 | 28.05 | 45.14 | US 85 atFour Corners | US 14 andI-90 Bus. inSundance | 01933-01-011933 | current | ||
 WYO 789 | 407.14 | 655.23 | Colorado state line nearBaggs | Montana state line nearFrannie | — | — | Canada to Mexico Highway | |
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![[icon]](/mt/?noimg=&dark=on&url=http%3a%2f%2fen.wikipedia.org%2fwiki%2fFile%3aWiki_letter_w_cropped.svg) | This sectionneeds expansion. You can help byadding 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 inDouglas | WYO 59 in Douglas | — | — | ||
