List of U.S. Highways in Iowa

Highway markers from different years for former US 32 (1926), US 75 (1961) and current US 151 (1971)
System information
Length:	3,627 mi (5,837 km)
Formed:	November 11, 1926[1]
Highway names
US Highways:	US Highway nn (US nn)
System links
Iowa Primary Highway System Interstate U.S. State Secondary Scenic

Mainline routes

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	0.315	0.507	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	97	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

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	—	—	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	—	—	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	—	—	US 30 Alt. at Omaha, Neb.	US 30 in Missouri Valley	1939	1969	Former routing of US 30
US 30 Alternate	—	—	US 30 / US 67 in Clinton	US 30 Alt. at Fulton, Ill.	1956	1967	Former routing of US 30
US 30 Business	—	—	US 30 southwest of Marshalltown	US 30 in southeastern Marshalltown	—	—	Serves Marshalltown; former routing of US 30
US 30 Business	—	—	US 30 west of Toledo	US 30 east of Tama	2011	current	Serves Tama and Toledo; former routing of US 30
US 34 Business	—	—	I-29 / US 34 near Pacific Junction	US 34 / US 275 in Glenwood	—	2003	Former routing of US 34
US 34 Business	—	—	US 34 west of Chariton	US 34 east of Chariton	—	—	Serves Chariton; former routing of US 34
US 34 Business	—	—	US 34 in southwestern Ottumwa	US 34 / US 63 in eastern Ottumwa	—	—	Serves Ottumwa
US 34 Business	—	—	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	—	—	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	—	—	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	—	—	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	—	—	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	—	—	US 61 in southern Maquoketa	US 61 / Iowa 64 in western Maquoketa	—	—	Serves Maquoketa; unsigned
US 63 Business	—	—	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	—	—	US 18 / US 63 south of New Hampton	US 63 north of New Hampton	—	—	Serves New Hampton; former routing of US 63

References

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: U.S. Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via University of North Texas Libraries.
2. Google (August 16, 2014). "Routing of City US 6 in Des Moines" (Map). Google Maps. Google. Retrieved August 16, 2014.

External links

The Iowa Highways Page by Jason Hancock