List of U.S. Highways in Iowa

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US 32 Iowa 1926.svgUS 75 (1961).svgUS 151 square.svg
Highway markers from different years for former US 32 (1926), US 75 (1961) and current US 151 (1971)
System information
Formed: November 11, 1926[1]
Length: 3,627 mi (5,837 km)
Highway names
US Routes: US Highway nn (US nn)
System links


Mainline routes[edit]

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
US 6 319.597 514.342 I-480 / US-6 at Omaha, Neb. I-74 / US 6 at Moline, Ill. 1931 current  
US 18 311.459 501.245 US 18 near Canton, S.D. US 18 / WIS 60 at McGregor 1926 current  
US 20 301.429 485.103 I-129 / US-20 / US-75 at South Sioux City, Neb. US 20 at East Dubuque, Ill. 1926 current  
US 30 330.266 531.512 US-30 at Blair, Neb. US 30 at Fulton, Ill. 1926 current  
US 32 322 518 US 30 / US 75 in Council Bluffs US 32 at Davenport 1926 1931 Replaced by US 6
US 34 271.786 437.397 US-34 near Plattsmouth, Neb. US 34 at Gulfport, Ill. 1926 current  
US 52 166.409 267.809 US 52 / IL 64 at Savanna, Ill. US 52 near Burr Oak 1935 current  
US 55 225 362 US 61 in Davenport US 55 near Burr Oak 1926 1935 Replaced by US 52 and US 67
US 61 192.283 309.449 US 61 / US 136 at Keokuk US 61 / US 151 at Dubuque 1926 current  
US 63 236 380 US 63 near Lancaster, Mo. US 63 near Chester 1926 current  
US 65 221.931 357.163 US 65 at Lineville US 65 near Gordonsville, Minn. 1926 current  
US 67 55.367 89.105 US 67 at Davenport US 52 / Iowa 64 near Sabula 1934 current  
US 69 228 367 US 69 near Lamoni US 69 at Emmons, Minn. 1926 current  
US 71 232.564 374.275 US 71 at Braddyville US 71 near Spirit Lake 1926 current  
US 75 79.994 128.738 I-129 / US-20 / US-75 at South Sioux City, Neb. US 75 near Rock Rapids 1926 current  
US 77 0.412 0.663 US 77 / US 20 Bus. at South Sioux City, Neb. I-29 / US 20 Bus. in Sioux City 1929 current  
US 136 3.690 5.938 US 61 / US 136 at Keokuk US 136 at Keokuk 1951 current  
US 151 107.661 173.264 I-80 near the Amana Colonies US 61 / US 151 at Dubuque 1938 current  
US 161 185 298 US 61 in Keokuk US 61 in Key West 1926 1938 Replaced by US 218 and US 151
US 163 60 100 US 65 / US 69 in Des Moines US 63 in Oskaloosa 1934 1937 Replaced by Iowa 163
US 169 234.876 377.996 US 169 near Redding US 169 near Lakota 1930 current  
US 218 274.995 442.562 US 61 / US 136 in Keokuk US 218 near St. Ansgar 1926 current  
US 275 59.391 95.581 US 275 near Hamburg US-275 / N-92 at Council Bluffs 1932 current  

Special routes[edit]

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
City US 6 10.2[2] 16.4 US 6 in Des Moines US 6 / US 65 in Des Moines 1934 1968 Former routing of US 6

US 18 Business
10.752 17.304 I-35 / US 18 / Iowa 122 in Clear Lake US 18 / US 65 in Mason City 1998 current Serves the Mason City area

US 18 Business
4.149 6.677 US 18 / Iowa 76 near McGregor US 18 / Iowa 76 in Marquette 1989 current Serves McGregor and Marquette; former routing of US 18

US 20 Business
0 0 US 77 / US 20 Bus. at South Sioux City, Neb. US 20 / US 75 at Sioux City 1979 current Serves Sioux City area; former routing of US 20

US 20 Business
0 0 US 20 west of Fort Dodge US 20 east of Fort Dodge 1996 current Serves Fort Dodge; former routing of US 20

US 30 Alternate
0 0 US 30 Alt. at Omaha, Neb. US 30 in Missouri Valley 1939 1969 Former routing of US 30

US 30 Alternate
0 0 US 30 / US 67 in Clinton US 30 Alt. at Fulton, Ill. 1956 1967 Former routing of US 30

US 30 Business
0 0 US 30 southwest of Marshalltown US 30 in southeastern Marshalltown Serves Marshalltown; former routing of US 30

US 30 Business
0 0 US 30 west of Toledo US 30 east of Tama 2011 current Serves Tama and Toledo; former routing of US 30

US 34 Business
0 0 I-29 / US 34 near Pacific Junction US 34 / US 275 in Glenwood 2003 Former routing of US 34

US 34 Business
0 0 US 34 west of Chariton US 34 east of Chariton Serves Chariton; former routing of US 34

US 34 Business
0 0 US 34 in southwestern Ottumwa US 34 / US 63 in eastern Ottumwa Serves Ottumwa

US 34 Business
0 0 US 34 / Iowa 163 west of Fairfield US 34 / Iowa 163 east of Fairfield 2008 current Serves Fairfield; former routing of US 34

US 34 Business
0 0 US 34 / Iowa 163 near Westwood US 34 / US 218 / Iowa 27 / Iowa 163 at Mount Pleasant Serves Mount Pleasant area; former routing of US 34

US 52 Alternate
0 0 US 52 / US 61 / US 151 in Dubuque US 52 / Iowa 3 in Luxemburg Original routing of US 52; mainline US 52 traffic diverted to allow for repairs on the alternate route

US 61 Business
0 0 US 61 / US 136 in southwestern Keokuk US 61 / US 218 in northwestern Keokuk Serves Keokuk; former routing of US 61

US 61 Business
3.613 5.815 US 61 / Iowa 2 west of Fort Madison US 61 northeast of Fort Madison 2011 current Serves Fort Madison; former routing of US 61

US 61 Business
0 0 US 61 / Iowa 92 in southwestern Muscatine US 61 / Iowa 22 / Iowa 38 / Iowa 92 in northeastern Muscatine Serves Muscatine; former routing of US 61

US 61 Business
10.750 17.300 I-280 / US 61 west of Davenport I-80 / US 61 in northern Davenport 2010 current Serves Davenport; former routing of US 61

US 61 Business
0 0 US 61 in southern Maquoketa US 61 / Iowa 64 in western Maquoketa Serves Maquoketa; unsigned

US 63 Business
0 0 US 34 / US 63 in southeastern Ottumwa US 34 / Iowa 149 / Iowa 163 north of Ottumwa Serves Ottumwa; former routing of US 63

US 63 Business
0 0 US 18 / US 63 south of New Hampton US 63 north of New Hampton Serves New Hampton; former routing of US 63

References[edit]

External links[edit]

The Iowa Highways Page by Jason Hancock