Roads of the Mid-South & West > Highways of the State of Iowa > U.S. Federal Route 18, Iowa
![](/rnb/bill20/us18.JPG) | U.S. Federal Route 18 |
U.S. Federal Route 18 runs east-west across Northern Iowa. This runs from the Iowa/South Dakota State Line, near Beloit, to the Iowa/Wisconsin State Line, near Marquette. Info on U.S. Rt. 18 is broken down by county below.
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Sioux County O'Brien County Clay County
Palo Alto County Kossuth County Hancock County
Cerro Gordo County
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Fayette County
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