U.S. Federal Route 169 is the main north-south highway in Dallas County. This runs mostly through the center of the county. U.S. Rt. 169 passes through the following towns in Dallas County. De Soto Adel Minburn U.S. Rt. 169 is multi-plexed in Dallas County. U.S. Rt. 6, from near De Soto to Adel. U.S. Rt. 169 intersects the following highways in Dallas County. Interstate 80, near De Soto. U.S. Rt. 6, near De Soto. U.S. Rt. 6, near De Soto. Iowa State Route 44, near Dallas Center. Iowa State Route 141, near Bouton.
