Iowa State Route 76 is a short north-south highway in Northeastern Clayton County. This is signed from the Allamakee/Clayton County Line to U.S. Rt. 18 at Marquette. South of U.S. Rt. 18, through Mc Gregor to U.S. Rt. 18 it is un-signed. IA St Rt 76 passes through the following towns in Clayton County. Marquette
Mc Gregor
IA St Rt 76 is multi-plexed in Clayton County. BUSN U.S. Rt. 18, from Marquette to near Mc Gregor.
IA St Rt 76 intersects the following highways in Clayton County. U.S. Rt. 18, at Marquette.