Iowa Highway 1

Iowa Highway 1
Iowa 1 highlighted in red
Route information
Maintained by Iowa DOT
Length	119.312 mi[1] (192.014 km)
Existed	ca. 1926–present
Major junctions
South end	Iowa 2 near Keosauqua
Major intersections	US 34 / Iowa 163 at Fairfield Iowa 92 in Washington Iowa 22 in Kalona US 218 / Iowa 27 at Iowa City US 6 in Iowa City I-80 at Iowa City US 30 at Mount Vernon
North end	US 151 / CR E34 near Anamosa
Location
Country	United States
State	Iowa
Counties	Van Buren Jefferson Keokuk Washington Johnson Linn Jones
Highway system
Iowa Primary Highway System Interstate US State Secondary Scenic
← Iowa 965 → Iowa 2

Iowa Highway 1 (Iowa 1) is a state highway in the U.S. state of Iowa that extends from Keosauqua to Anamosa. It travels nearly 120 miles (190 km), mainly through rich farmland and small communities. Iowa 1 provides an important link to Iowa City and the University of Iowa as it passes through campus. Portions of the route today date back to the late 1830s, when Martin Van Buren was president, making Iowa 1 one of the oldest routes in the state, pre-dating the current primary highway system by nearly eighty years. The highway was seriously damaged by the Cedar River in the Iowa flood of 2008, which closed the highway for seven weeks.