Number | Length (mi)[1] | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
---|---|---|---|---|---|---|---|---|
US 6 | 149.00 | 239.79 | Illinois state line at Munster | Ohio state line east of Butler | 1931 | current | ||
US 12 | 45.16 | 72.68 | Illinois state line at Whiting | Michigan state line at Michiana Shores | 1926 | current | ||
US 20 | 155.50 | 250.25 | Illinois state line at Whiting | Ohio state line east of Angola | 1926 | current | ||
US 24 | 164.30 | 264.42 | Illinois state line at Effner | Ohio state line northeast of Woodburn | 1926 | current | ||
US 27 | 117.78 | 189.55 | Ohio state line at West College Corner | I–69/US 30 in Fort Wayne | 1926 | current | Went into Michigan before 2001 | |
US 30 | 155.96 | 250.99 | Illinois state line at Dyer | Ohio state line southeast of Townley | 1926 | current | ||
US 31 | 266.02 | 428.12 | Kentucky state line at Clarksville | Michigan state line northwest of South Bend | 1926 | current | ||
US 33 | 94.72 | 152.44 | Ohio state line at Willshire, Ohio | US 20 in Elkhart | 1937 | current | The route in South Bend was replaced with SR 933 | |
US 35 | 204.91 | 329.77 | Ohio state line at Richmond | US 20 in Michigan City | 1934 | current | ||
US 36 | 138.99 | 223.68 | Illinois state line west of Dana | Ohio state line east of Lynn | 1926 | current | ||
US 40 | 149.80 | 241.08 | Illinois state line west of Terre Haute | Ohio state line at Richmond | 1926 | current | ||
US 41 | 279.79 | 450.28 | Kentucky state line at Evansville | Illinois state line at Whiting | 1926 | current | ||
US 50 | 171.83 | 276.53 | Illinois state line at Vincennes | Ohio state line at Whiting | 1926 | current | ||
US 52 | 171.03 | 275.25 | Illinois state line at Effner | Ohio state line at West Harrison | 1926 | current | ||
US 112 | 37.8 | 60.8 | US 20 in Rolling Prairie | Michigan state line north of Elkhart | 1926 | 1936 | Between 1926 and 1933 the western terminus was in Elkhart | |
US 131 | 0.67 | 1.08 | Indiana Toll Road north of Middebury | Michigan state line south of White Pigeon, MI | 1980 | current | ||
US 136 | 75.30 | 121.18 | Illinois state line north of Middebury | I–74/I–465 in Speedway | 1952 | current | ||
US 150 | 177.17 | 285.13 | Illinois state line west of Libertyville | Kentucky state line at New Albany | 1926 | current | ||
US 152 | — | — | Indianapolis | Whiting | 1934 | 1938 | ||
US 224 | 39.63 | 63.78 | US 24 in Huntington | Ohio state line east of Decatur | 1934 | current | ||
US 231 | 285.82 | 459.98 | Kentucky state line at Rockport | US 41 in St. John | 1952 | current | ||
US 421 | 232.00 | 373.37 | Kentucky state line at Madison | US 20 in Michigan City | 1951 | current | ||
US 460 | align=right | align=right|[convert: needs a number] | Illinois state line at New Harmony | Kentucky state line at Jeffersonville | 1947 | 1977 | ||
- ^ "INDOT Roadway Referencing System" (PDF). staff. Retrieved June 22, 2013.