Ohio State Route 84 is an east-west highway across Central Lake County. OH St Rt 84 passes through the following towns in Lake County. Willoughby Hills Wickliffe Willoughby Mentor Painesville Madison OH St Rt 84 is multi-plexed in Lake County. Ohio State Route 174, near Willoughby. Ohio State Route 86, near Painesville. Ohio State Route 528, near Madison. OH St Rt 84 intersects the following highways in Lake County. U.S. Rt. 6, at Willoughby Hills. Interstate 90, at Wickliffe. Ohio State Route 91, at Willoughby. Ohio State Route 174, at Willoughby. Ohio State Route 174, at Willoughby. Ohio State Route 306, at Mentor. Ohio State Route 615, at Mentor. Ohio State Route 44, near Mentor. Ohio State Route 86, near Painesville. Ohio State Route 86, near Painesville. Ohio State Route 528, at Madison. Ohio State Route 528, at Madison.
