US Highways Route - US81
| Route | From | To | Miles | States passed through | Replaced by | Notes |
| US 81 | (Pembina, ND *) Joliette, ND | Ft. Worth, TX (Laredo, TX *) | 1220 (1769) | ND SD NE KS OK TX | I-29 ND-13 ND-127 SD-127 NE-121 US 20 KS-106 KS-18 I-35W TX-81 I-35 TX-368 I-35 TX-353 I-35 | Since 1926; N shtfd 1934; S trunc San Antonio, TX 1991; Curr 1993; N trunc 199x |
| US 181 | (San Antonio, TX) Southton, TX + | Corpus Christi, TX | 140 (163) | TX | TX-122 US 281 | Since 1926; N trunc 1977 |
| US 281 | San Haven, ND * | Brownsville, TX | 1872 | ND SD NE KS OK TX | ND-69 SD-45 SD-1804 SD-1806 US 18 SD-43 NE-11 NE-12 NE-56 TX-240 TX-447 TX-473 TX-536 Alt US 281 US 83 | Since 1932; Orig rte Rock Lake, ND - Parkston, SD; S exten Lebanon, KS 1933; Second rte began Wichita Falls, TX 1934; Sgmts joined 1938 |
| US 83 | Westhope, ND * | Brownsville, TX * | 1894 (1904) | ND SD NE KS OK TX | SD-20 US 212 NE-2 NE-10 US 30 US 183 NE-2 NE-97 US 290 TX-27 I-10 TX-41 | Since 1926; S sgmt Norton, KS - Liberal, KS 1930; N + S exten + sgmt conn 1931; Cntd to Swan River, MB, Canada via MB-83 |
| US 183 | (Vivian, SD) Presho, SD | Refugio, TX | 1250 (1269) | SD NE KS OK TX | US 83 I-90 NE-7 KS-156 US 270 US 60 US 283 US 377 | Since 1930; Orig rte North Platte, NE - Dresden, KS; N exten Vivian, SD 1932; S exten Junction, TX 1940; Curr 1952; Was planned to exten to Corpus Christi |
| US 283 | Lexington, NE | Brady, TX (Junction, TX) | 730 (799) | NE KS OK TX | TX-6 US 183 US 377 | Since 1932 |
| (US 383) | (Elm Creek, NE) | (Oakley, KS) | (175) | (NE) (KS) | US 183 KS-383 US 83 | Exist 1942-1982; S trunc Halford, KS 1946; S exten 1950; N trunc Alma, NE 1964 |
| US 85 | (Ambrose, ND *) Fortuna, ND * | El Paso, TX * | 1479 (1582) | ND SD WY CO {NM} TX | ND-42 ND-5 ND-50 US 14 I-90 Alt. US 14 US 385[II] WY-219 CO-105 {I-25 US 64 NM-445 NM-47 NM-314 NM-1 NM-185 I-10} | Since 1926; /E/ S exten 1935; N end shftd 1944; Curr hidden route overlay on I-25 from CO to TX, there are few US 85 signs left in NM since 1991 de-signing |
| (US 185) | (Casper, WY) | (Cheyenne, WY) | (124) | (WY) | US 87E WY-319 US 87/I-25 WY-320 US 87/I-25 WY-321 US 87/I-25 WY-219 | Exist 1926-1934 |
| (US 285) [I] | (Laramie, WY) | (Denver, CO) | (133) | (WY) (CO) | US 287 | Exist 1926-1934 |
| US 285 [II] | Denver, CO | Sanderson, TX | 835 (847) | CO NM TX | CO-26 CO-17 NM-17 US 84 NM-2 | Since 1934 |
| (US 385) [I] | (Raton, NM) | (Boerne, TX) | (773) | (NM) (TX) | US 87 US 385 [II] TX-354 US 87 | Exist 1926-1935; S trunc 1930; S exten Boerne, TX 1930; San Antonio, TX 1932 |
| US 385 [II] | Pluma, SD | Big Bend NP, TX | 1206 | SD NE CO OK TX | US 40 US 287 | Since 1958 |
| (US 485) | (Raton, NM) | (Santa Fe, NM) | (164) | (NM) | US 64 US 64 NM-68 US 285 | Exist 1926-1931 |
| US 87 | (Piegan, MT *) Havre, MT + | Port Lavaca, TX | 1998 (2036) | MT WY CO NM TX | US 89 US 287 CR-451 US 14 WY-196 WY-259 WY-319 WY-219 CO-1 US 287 US 85 CO-105 NM-193 TX-345 | Since 1926; /E//W//W/ N trunc 1934; S exten 1935 |
| (US 187) | (Moran Jct., WY) | (Baggs, WY -) | (401) | (WY) | US 87W US 191 US 30 WY-87 WY-330 WY-789 | Exist 1926-1982?; S exten 1938; S trunc Rock Springs, WY 1939; Signs removed 1982; In 1989 US rte log |
| US 287 [I] | Choteau, MT | Yellowstone NP, MT | 282 | MT (ID) MT | MT-50 MT-87 ID-287A ID-87 US 20 | N Leg; Since 1965; Left ID 1966 |
| US 287 [II] | Yellowstone NP, WY | Port Arthur, TX | 1509 (1619) | WY CO OK TX | WY-287 US 26 WY-320 WY-138 WY-789 CO-36 CO-40 TX-335 TX-380 | Since 1934; S leg; Orig S end Denver, CO; S trunc Ft. Collins, CO 1937; Curr S exten 1941 |
| US 89 [I] | Piegan, MT * | Yellowstone NP, MT | 404 | MT | Nill | Since 1934; N Leg |
| US 89 [II] | Yellowstone NP, WY | Flagstaff, AZ (Nogales, AZ *) | 848 (1281) | WY ID UT AZ | US 189 [II] WY-89 UT-530 US 40 UT-30 UT-11 Alt US 89 I-40 AZ-89 US 60 AZ-79 AZ-77 I-19 | Since 1926; S Leg; N exten 1934; S trunc 1992 |
| (US 189) [I] | (Nephi, UT) | (Pigeon Hollow Jct., UT) | (30) | (UT) | UT-189 UT-132 | Exist 1930-1939 |
| US 189 [II] | Jackson, WY | Provo, UT | 322 | WY UT | Alt US 189 UT-32 {US 40 I-80} | Since 1939; End US 189 sign Heber City, UT 1998; No signs fm WY border to Heber City, UT; Orig begin Daniel, WY; N exten 1951 |
U.S. Highways
| US 1 | US 11 | US 21 | US 31 | US 41 |
| US 51 | US 61 | US 71 | US 81 | US 91 |
| US 2[I] | US 10 [I] | US 20 [I] | US 30 | US 40 |
| US 50 | US 60 | US 70 | US 80 | US 90 |