Ohio State Route 21 is a short north-south highway in Northwestern Summit County. This runs along the eastside of Interstate 77 near Richfield. OH St Rt 21 passes through the following town in Summit County. Richfield OH St Rt 21 is not multi-plexed in Summit County. OH St Rt 21 intersects the following highways in Summit County. Interstate 77, at Richfield. Interstate 80, (Ohio Turnpike) at Richfield.
