Route information | ||||
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Maintained by ODOT | ||||
Length | 35.94 mi[1][2] (57.84 km) | |||
Existed | 1924–present | |||
Major junctions | ||||
South end | SR 121 near New Paris | |||
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North end | SR 47 / SR 185 in Versailles | |||
Location | ||||
Country | United States | |||
State | Ohio | |||
Counties | Preble, Darke | |||
Highway system | ||||
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State Route 121 (SR 121) is a state highway in western Ohio. It starts at Indiana State Road 121 near New Paris, Ohio, and ends at State Route 47 and State Route 185 in Versailles, Ohio.