State Route 37 (SR 37) is a northwest-southeast highway (signed east–west) in Ohio. It is the ninth longest state route in Ohio. Its western terminus is at U.S. Route 224 and SR 12 in Findlay, and its eastern terminus is at SR 60 and SR 78 in McConnelsville. History State Route 37 is an original state highway that went from Lancaster to Marietta. In 1932, the route was extended to Findlay along its current route. In 1935, its eastern terminus was shortened to its current terminus, giving that route to State Route 78 and the now defunct State Route 77 (now part of State Route 60). Major junctions References 037 Transportation in Hancock County, Ohio Transportation in Hardin County, Ohio Transportation in Wyandot County, Ohio Transportation in Marion County, Ohio Transportation in Union County, Ohio Transportation in Delaware County, Ohio Transportation in Licking County, Ohio Transportation in Fairfield County, Ohio Transportation in Perry County, Ohio Transportation in Morgan County, Ohio