Iowa State Route 27 runs along a four-lane divided highway through eastern Washington County. IA St Rt 27 does not pass through any towns in Washington County. IA St Rt 27 is multi-plexed in Washington County. U.S. Rt. 218, from the Washington/Johnson County Line to the Washington/Henry County Line. IA St Rt 27 intersects the following highways in Washington County. Iowa State Route 22, near Riverside.
