Along its way, State Route 302 travels through portions of Wayne and Ashland Counties.

There is no part of this highway that is included within the National Highway System, a network of routes deemed most important for the nation's economy, mobility and defense.

From there, State Route 302 ran along its present alignment northwest to the hamlet of Lattasburg, where it came to an end at its intersection with what is today the eastern terminus of State Route 301.

[2][3] Three years after its inception, State Route 302 was extended to the northwest along its current alignment to a new western terminus at State Route 89 just south of Polk.

When U.S. Route 250 was re-routed to join U.S. Route 30 further west of Wooster in the hamlet of Jefferson via County Road 157, State Route 302 was extended to the southeast to a new terminus at its present intersection with Old Lincoln Way just west of the Wooster city limits.