Iowa Highway 81 is a state highway that runs from south to north in southeastern Iowa. It begins at the Missouri state line southwest of Farmington, where it continues as Missouri Route 81 and ends at Iowa 2 in Farmington. The route Iowa 81 takes has been in the primary highway system since the 1920s. The current Iowa 81 was created on January 1, 1969, when it traded route numbers with Iowa 114 in the southeast-central part of the state.
^2009 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2009. Retrieved January 15, 2011.
^Hatfield, Richard (November 12, 1968). "Iowa's Highway Route Numbers Revised". Des Moines Tribune.
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Global Information
Route 81 southwest of Farmington
Iowa 2 in Farmington
