List of U.S. Highways in Iowa

United States Numbered Highways of the Iowa Primary Highway System
Highway markers from different years for former US 32 (1926), US 75 (1961) and current US 151 (1971)
Map
U.S. Highways in Iowa highlighted in red
System information
Length3,627 mi (5,837 km)
FormedNovember 11, 1926[1]
Highway names
US HighwaysUS Highway nn (US nn)
System links

Mainline routes

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Number Length (mi)[2] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
  US 6 322.454 518.939 I-480 / US-6 at Omaha, Neb. I-74 / US 6 at Moline, Ill. 01931-06-081931 current  
  US 18 311.750 501.713 US 18 near Canton, S.D. US 18 / WIS 60 at McGregor 01926-07-011926 current  
  US 20 300.270 483.238 I-129 / US-20 / US-75 at South Sioux City, Neb. US 20 at East Dubuque, Ill. 01926-07-011926 current  
  US 30 330.856 532.461 US-30 at Blair, Neb. US 30 at Fulton, Ill. 01926-07-011926 current  
  US 32 322 518 US 30 / US 75 in Council Bluffs US 32 at Davenport 01926-07-011926 01931-06-081931 Replaced by US 6
  US 34 269.111 433.092 US-34 near Plattsmouth, Neb. US 34 at Gulfport, Ill. 01926-07-011926 current  
  US 52 173.722 279.578 US 52 / IL 64 at Savanna, Ill. US 52 near Burr Oak 01935-01-011935 current  
  US 55 225 362 US 61 in Davenport US 55 near Burr Oak 01926-07-011926 01935-01-011935 Replaced by US 52 and US 67
  US 59 215.191 346.316 US 59 near Shenandoah US 59 near Worthington, MN 01934-01-011934 current  
  US 61 192.663 310.061 US 61 / US 136 at Keokuk US 61 / US 151 at Dubuque 01926-07-011926 current  
  US 63 237.758 382.634 US 63 near Lancaster, Mo. US 63 near Chester 01926-07-011926 current  
  US 65 221.618 356.660 US 65 at Lineville US 65 near Gordonsville, Minn. 01926-07-011926 current  
  US 67 55.275 88.956 US 67 at Davenport US 52 / Iowa 64 near Sabula 01934-01-011934 current  
  US 69 227.257 365.735 US 69 near Lamoni US 69 at Emmons, Minn. 01926-07-011926 current  
  US 71 231.329 372.288 US 71 at Braddyville US 71 near Spirit Lake 01926-07-011926 current  
  US 75 80.010 128.764 I-129 / US-20 / US-75 at South Sioux City, Neb. US 75 near Rock Rapids 01926-07-011926 current  
  US 77 0.314 0.505 US 77 / US 20 Bus. at South Sioux City, Neb. I-29 / US 20 Bus. in Sioux City 01929-01-011929 current  
  US 136 3.591 5.779 US 61 / US 136 at Keokuk US 136 at Keokuk 01951-01-011951 current  
  US 151 108.151 174.052 I-80 near the Amana Colonies US 61 / US 151 at Dubuque 01938-01-011938 current  
  US 161 185 298 US 61 in Keokuk US 61 in Key West 01926-07-011926 01938-01-011938 Replaced by US 218 and US 151
  US 163 60 97 US 65 / US 69 in Des Moines US 63 in Oskaloosa 01934-01-011934 01937-01-011937 Replaced by Iowa 163
  US 169 234.956 378.125 US 169 near Redding US 169 near Lakota 01930-01-011930 current  
  US 218 274.592 441.913 US 61 / US 136 in Keokuk US 218 near St. Ansgar 01926-07-011926 current  
  US 275 59.158 95.206 US 275 near Hamburg US-275 / N-92 at Council Bluffs 01932-01-011932 current  

Special routes

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Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
  City US 6 10.2[3] 16.4 US 6 in Des Moines US 6 / US 65 in Des Moines 01934-01-011934 01968-01-011968 Former routing of US 6
 
  US 18 Bus.
10.752 17.304 I-35 / US 18 / Iowa 122 in Clear Lake US 18 / US 65 in Mason City 01998-01-011998 current Serves the Mason City area
 
  US 18 Bus.
4.149 6.677 US 18 / Iowa 76 near McGregor US 18 / Iowa 76 in Marquette 01989-01-011989 current Serves McGregor and Marquette; former routing of US 18
 
  US 20 Bus.
US 77 / US 20 Bus. at South Sioux City, Neb. US 20 / US 75 at Sioux City 01979-01-011979 current Serves Sioux City area; former routing of US 20
 
  US 20 Bus.
US 20 west of Fort Dodge US 20 east of Fort Dodge 01996-01-011996 current Serves Fort Dodge; former routing of US 20
 
  US 30 Alt.
US 30 Alt. at Omaha, Neb. US 30 in Missouri Valley 01939-01-011939 01969-01-011969 Former routing of US 30
 
  US 30 Alt.
US 30 / US 169 in Ogden US 30 near Marshalltown 01973-01-011973 01981-01-011981 Former routing of US 30; became Iowa 930
 
  US 30 Alt.
US 30 / US 67 in Clinton US 30 Alt. at Fulton, Ill. 01956-01-011956 01967-01-011967 Former routing of US 30
 
  US 30 Bus.
US 30 southwest of Marshalltown US 30 in southeastern Marshalltown 01996-01-011996 current Serves Marshalltown; former routing of US 30
 
  US 30 Bus.
US 30 west of Toledo US 30 east of Tama 02011-01-012011 current Serves Tama and Toledo; former routing of US 30
 
  US 34 Bus.
I-29 / US 34 near Pacific Junction US 34 / US 275 in Glenwood 01974-01-011974 02003-01-012003 Former routing of US 34
 
  US 34 Bus.
US 34 west of Chariton US 34 east of Chariton 01996-01-011996 current Serves Chariton; former routing of US 34
 
  US 34 Bus.
US 34 in southwestern Ottumwa US 34 / US 63 in eastern Ottumwa 01968-01-011968 current Serves Ottumwa
 
  US 34 Bus.
US 34 / Iowa 163 west of Fairfield US 34 / Iowa 163 east of Fairfield 02008-01-012008 current Serves Fairfield; former routing of US 34
 
  US 34 Bus.
US 34 / Iowa 163 near Westwood US 34 / US 218 / Iowa 27 / Iowa 163 at Mount Pleasant 02005-01-012005 current Serves Mount Pleasant area; former routing of US 34
 
  US 52 Alt.
US 52 / US 61 / US 151 in Dubuque US 52 / Iowa 3 in Luxemburg 01964-01-011964 01967-01-011967 Original routing of US 52; mainline US 52 traffic diverted to allow for repairs on the alternate route
 
  US 61 Bus.
5.931 9.545 US 61 / US 136 in southwestern Keokuk US 61 / US 218 in northwestern Keokuk 01959-01-011959 current Serves Keokuk; former routing of US 61
 
  US 61 Bus.
9.075 14.605 US 61 / Iowa 2 west of Fort Madison US 61 northeast of Fort Madison 02011-01-012011 current Serves Fort Madison; former routing of US 61
 
  US 61 Bus.
5.407 8.702 US 61 / Iowa 92 in southwestern Muscatine US 61 / Iowa 22 / Iowa 38 / Iowa 92 in northeastern Muscatine 01984-01-011984 current Serves Muscatine; former routing of US 61
 
  US 61 Bus.
10.924 17.580 I-280 / US 61 west of Davenport I-80 / US 61 in northern Davenport 02010-01-012010 current Serves Davenport; former routing of US 61
 
  US 61 Bus.
2.55 4.10 US 61 in southern Maquoketa US 61 / Iowa 64 in western Maquoketa 01998-01-011998 current Serves Maquoketa; unsigned
 
  US 63 Bus.
6.426 10.342 US 34 / US 63 in southeastern Ottumwa US 34 / Iowa 149 / Iowa 163 north of Ottumwa 02007-01-012007 current Serves Ottumwa; former routing of US 63
 
  US 63 Bus.
US 18 / US 63 south of New Hampton US 63 north of New Hampton 02002-01-012002 current Serves New Hampton; former routing of US 63
 
  US 71 Bus.
US 71 / Iowa 2 south of Clarinda US 71 east of Clarinda 01973-01-011973 current Serves Clarinda; former routing of US 71
 
  US 71 Bus.
US 71 / Iowa 7 at Storm Lake US 71 near Truesdale 01996-01-011996 current Serves Storm Lake; former routing of US 71
 
  US 75 Bus.
10.334 16.631 I-29 / US 20 / US 75 south of Sioux City US 75 north of Sioux City 02001-01-012001 current Serves Sioux City; former routing of US 75
 
  US 75 Bus.
3.082 4.960 US 75 west of Le Mars US 75 / Iowa 60 north of Le Mars 02001-01-012001 current Serves Le Mars; partial former routing of US 75
   
  US 151 Bus.
12.7 20.4 US 30 / US 151 / US 218 near Fairfax US 151 / Iowa 13 in Marion 01989-01-011989 current Serves Cedar Rapids and Marion; former routing of US 151
   
  US 151 Bus.
US 151 south of Monticello US 151 north of Monticello 02004-01-012004 current Serves Monticello; former routing of US 151
   
  US 151 Bus.
US 151 west of Cascade US 151 north of Cascade 02004-01-012004 current Serves Cascade; former routing of US 151
   
  US 169 Bus.
3.147 5.065 US 169 / US 20 Business in Fort Dodge US 169 in Fort Dodge 01990-01-011990 current Serves Fort Dodge; former routing of US 169
   
  US 218 Bus.
12.7 20.4 US 34 / US 218 / Iowa 27 / Iowa 163 east of Mount Pleasant US 218 / Iowa 27 north of Mount Pleasant 02003-01-012003 current Serves Mount Pleasant; partial former routing of US 218
   
  US 218 Bus.
US 218 south of Waverly US 218 north of Waverly 01998-12-011998 current Serves Waverly; former routing of US 218
   
  US 218 Bus.
US 18 / US 218 south of Charles City US 18 / US 218 north of Charles City 02000-01-012000 current Serves Charles City; former routing of US 218

References

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  1. ^ Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: United States Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via Wikimedia Commons.
  2. ^ "Road Network (Portal)" (ESRI shapefile). Ames: Iowa Department of Transportation. April 9, 2021. Retrieved April 16, 2021.
  3. ^ "Routing of City US 6 in Des Moines" (Map). Google Maps. Retrieved August 16, 2014.
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