Iowa State Route 60 is a north-south highway in Western Osceola County. This is the northern most county that IA St Rt 60 passes through. IA St Rt 60 passes through the following towns in Osceola County. Ashton Sibley IA St Rt 60 is not multi-plexed in Osceola County. IA St Rt 60 intersects the following highway in Osceola County. Iowa State Route 9, near Sibley.