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. Major intersections References 139 Transportation in Carroll County, Missouri Transportation in Livingston County, Missouri Transportation in Chariton County, Missouri Transportation in Linn County, Missouri Transportation in Sullivan County, Missouri Transportation in Grundy County, Missouri Transportation in Putnam County, Missouri