Route information | ||||
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Maintained by ODOT | ||||
Length | 39.02 mi[1] (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.