Ohio State Route 189

State Route 189 marker
State Route 189
Route information
Maintained by ODOT
Length11.58 mi[1] (18.64 km)
Existed1923[2][3]–present
Major junctions
West end US 224 / SR 66 in Ottoville
East end SR 12 / SR 115 in Vaughnsville
Location
CountryUnited States
StateOhio
CountiesPutnam
Highway system
  • Ohio State Highway System
← SR 188→ SR 190

State Route 189 (SR 189, OH 189) is a 11.58-mile (18.64 km) long state highway in the northwestern portion of the U.S. state of Ohio. The highway runs from its western terminus at its junction with U.S. Route 224 (US 224) and SR 66 in Ottoville to its eastern terminus at the intersection of SR 115 and SR 12 in Vaughnsville, nearly 5 miles (8.0 km) southwest of Columbus Grove. SR 189 runs entirely within Putnam County and is entirely a two-lane highway.

The SR 189 designation was applied in the early 1920s. The designation was on a route that was to the south of the current. In the mid 1920s SR 189 was rerouted onto its current route between Fort Jennings and Vaughnsville. The route was extended to Ottoville in the early 1930s.

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