Iowa State Route 27 runs briefly though the northeastenr corner of Benton County. This runs near Urbana. IA St Rt 27 does not pass thorugh any towns in Benton County. IA St Rt 27 is multi-plexed in Benton County. Interstate 380, through Benton County.
IA St Rt 27 intersects the following highway in Benton County. Iowa State Route 150, near Urbana.
SB I-380/IA St Rt 27 near the Benton/Buchanan County Line. SB I-380/IA St Rt 27 near Urbana.
