State Route 121 (SR 121) is a state highway in western

Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...

. It starts at

Indiana State Road 121 State Road 121 (SR 121) is a part of the Indiana State Road that exists in two sections. The first runs between Metamora and Connersville and the second from Richmond to the Ohio state line in US state of Indiana. The of SR 121 that ...

near

New Paris, Ohio New Paris is a village (United States)#Ohio, village in Preble County, Ohio, Preble County, Ohio, United States. The population was 1,629 at the 2010 United States Census, 2010 census. It is part of the Dayton, Ohio, Dayton Greater Dayton, Metrop ...

, and ends at State Route 47 and State Route 185 in

Versailles, Ohio Versailles ( ) is a village in Darke County, Ohio, United States. It is the only village in Wayne Township. The population was 2,687 at the 2010 census. History Founded in 1819, the village is named after the city of Versailles in France. Versa ...

Major intersections

References

{{Reflist 121 Transportation in Darke County, Ohio Transportation in Preble County, Ohio