U.S. Route 23 in Ohio
| Route of US 23 highlighted in red | ||||
| Route information | ||||
| Maintained by ODOT | ||||
| Length | 234.83 mi (377.92 km) | |||
| Existed | 1926–present | |||
| Major junctions | ||||
| South end | US 23 at U.S. Grant Bridge in Portsmouth | |||
| North end | US 23 / US 223 at Michigan-Ohio state line near Sylvania | |||
| Location | ||||
| Country | United States | |||
| State | Ohio | |||
| Counties | Scioto, Pike, Ross, Pickaway, Franklin, Delaware, Marion, Wyandot, Seneca, Sandusky, Wood, Lucas | |||
| Highway system | ||||
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U.S. Route 23 (US 23) is a United States Numbered Highway that runs from Jacksonville, Florida, to Mackinaw City, Michigan. In the state of Ohio, it is a major north–south state highway that runs from the Kentucky border at Portsmouth to the Michigan border at Sylvania.