Ohio State Route 139

State Route 139
Route information
Maintained by ODOT
Length	33.99 mi[1] (54.70 km)
Existed	1924–present
Major junctions
South end	US 52 in New Boston
North end	SR 93 in Jackson
Location
Country	United States
State	Ohio
Counties	Scioto, Jackson
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 138 → SR 140

State Route 139 (SR 139) is a north–south road that stretches from New Boston at its southern terminus to Jackson, Ohio at its northern terminus. This route offers a quick, yet narrow and sharp route to Jackson. US 23 and SR 32 offer a more straight route with a higher speed limit, though less direct.

SR 139 begins at an intersection with US 52 in New Boston. The route goes north through a couple of traffic lights before passing through Portsmouth, Eden Park, Twin Valley, Rubyville, and Clarktown before it continues due east toward Minford. From there it crosses SR 335 and then begins to turn north once again. After reaching the Scioto County and Jackson County line, SR 279 splits off of State Route 139 and heads toward Oak Hill. SR 139 crosses SR 32 just outside Jackson and SR 776 within less than mile of downtown. The route then briefly overlaps SR 93 in downtown Jackson, terminating 0.15 miles (0.24 km) north where State Route 93 turns east.