Ohio State Route 100
| Route information | ||||
|---|---|---|---|---|
| Maintained by ODOT | ||||
| Length | 39.02 mi (62.80 km) | |||
| Existed | 1924–present | |||
| Major junctions | ||||
| South end | SR 309 near Iberia | |||
| North end | SR 53 in Tiffin | |||
| Location | ||||
| Country | United States | |||
| State | Ohio | |||
| Counties | Marion, Crawford, Seneca | |||
| Highway system | ||||
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State Route 100 (SR 100) is a north–south highway in northwestern Ohio. Its southern terminus is at State Route 309 near Iberia, and its northern terminus is at State Route 53 in Tiffin.