Ohio State Route 721

State Route 721
Route information
Maintained by ODOT
Length17.91 mi (28.82 km)
Existed1937–present
Major junctions
South end SR 49 near Potsdam
Major intersections US 36 near Bradford
North end SR 185 near Bradford
Location
CountryUnited States
StateOhio
CountiesMiami, Darke
Highway system
  • Ohio State Highway System
SR 720 SR 722

State Route 721 (SR 721) is a northsouth state highway located in the western portion of the U.S. state of Ohio. The southern terminus of SR 721 is at a T-intersection with SR 49 approximately 2.75 miles (4.43 km) south of the village of Potsdam. Its northern terminus is also at a T-intersection, this time with SR 185 on the DarkeMiami County Line nearly 1.50 miles (2.41 km) north of Bradford.