Illinois State Route 62 runs briefly through Mc Henry County. This is the western most county that this highway passes through. It runs from the Kane/Mc Henry County Line to Illinois State Route 31 at Algonquin. IL St Rt 62 passes through the following town in Mc Henry County. Algonquin
IL St Rt 62 is not multi-plexed in Mc Henry County. IL St Rt 62 intersects the following highway in Mc Henry County. Illinois State Route 31, at Algonquin.