Iowa Highway 925 (Iowa 925) was a state highway that was an alternative to Interstate 80 (I-80) between Adair and Dexter. It began at exit 75 along I-80 in Adair and traveled through Casey, Menlo, and Stuart before ending at U.S. Highway 6 (US 6) east of Dexter. The highway was designated in 1981 when US 6 was relocated onto I-80 between Adair and Dexter. It ceased to exist on July 1, 2003, when the Iowa Department of Transportation relinquished control of more than 700 miles (1,100 km) of local highways to county maintenance.