Mississippi State Route 302 is a east-west highway across Northern De Soto County. It runs from U.S. Rt. 61, near Walls to the De Soto/Marshall County Line. From U.S. Rt. 78, at Olive Branch, to the De Soto/Marshall County Line it is a four-lane divided highway. MS St Rt 302 passes through the following towns in De Soto County. Horn Lake Southaven Olive Branch
A BGS on NB U.S. Rt. 61. A BGS on SB I-55. EB MS St Rt 302 in Southaven. A BGS on WB U.S. Rt. 78. EB MS St Rt 302 in Olive Branch. EB MS St Rt 302 east of Olive Branch. EB MS St Rt 302 near the Marshall/De Soto County Line.