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)
U.S. Highways in Iowa highlighted in red
System information
Length3,627 mi (5,837 km)
FormedNovember 11, 1926
Highway names
US HighwaysUS Highway nn (US nn)
System links
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