Missouri Route 139

Route 139
Route information
Maintained by MoDOT
Length	107 mi (172 km)
Major junctions
South end	U.S. Route 24 east of Carrollton
North end	Wayne CR S40 in Iowa state line
Location
Country	United States
State	Missouri
Highway system
Missouri State Highway System Interstate US State Supplemental
← Route 138 → Route 141

Route 139 is a highway in northern and central Missouri. Its northern terminus is at the Iowa state line where it continues as Wayne County Route S40; its southern terminus is at U.S. Route 24 east of Carrollton.