Ohio State Route 257 is a north-south highway in Northwestern Franklin County. It runs from U.S. Rt. 33/Ohio State Route 161, at Dublin, to the Franklin/Delaware County Line, near Shawnee Hills. OH St Rt 257 passes through the following town in Franklin County. Dublin
OH St Rt 257 is not multi-plexed in Franklin County. OH St Rt 257 crosses the following towns in Franklin County. U.S. Rt. 33, at Dublin. Ohio State Route 161, at Dublin. Interstate 270, at Dublin. (NO Interchange)
A guide marker on EB U.S. Rt. 33/OH St Rt 161. A guide marker on WB OH St Rt 161.
