Ohio State Route 242

State Route 242
Map of SR 242 c. 2012
Route information
Maintained by ODOT
Length	3.67 mi[1] (5.91 km)
Existed	1924–2013
Major junctions
West end	US 127 near Greenville
East end	SR 121 near Versailles
Location
Country	United States
State	Ohio
Counties	Darke
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 241 → SR 243

State Route 242 (SR 242) was an east–west state highway in the west-central portion of Ohio. The western terminus of the route was at U.S. Route 127, approximately 5 miles (8.0 km) north of Greenville. Its eastern terminus was at a T-intersection with SR 121, adjacent to Darke County Airport about 1.5 miles (2.4 km) southwest of Versailles.

Created in the middle of the 1920s, SR 242 ran through very flat farm country in the northeastern portion of Darke County. The highway abutted the western and northern edges of Darke County Airport along the way. The entire route was turned over to county and township control around 2013 in conjunction with a plan to extend the runway of the Darke County Airport.