Madison County is served by I-55, running straight through the middle of the county. I-55 connects Madison County with Memphis, Tennessee; Saint Louis, Missouri; and Chicago to the north and to Baton Rouge, Louisiana to the South, where it connects with Interstate 10 near New Orleans.
Madison County has easy access to I-20, a major east/west interstate artery in the Southern United States. I-20 easily connects Madison County with virtually all the major metropolitan areas in the South. To the east, I-20 provides access to Meridian, Birmingham, Atlanta, Columbia, SC, and terminates in Florence, SC with Interstate 95–the major north-south trade route in the Eastern US. To the west from Jackson, I-20 connects your business or industry with Dallas and El Paso where I-20 terminates with Interstate 10.
Two other US highways, US 49 and US 51, connect Madison County to many destinations in the United States. US 49 terminates south of Madison County at Gulfport on the Gulf of Mexico and travels north to Arkansas. US 51 is a north-south highway that runs for 1,286 miles from northern Wisconsin to the western suburbs of New Orleans.
The Natchez Trace Parkway, a famous national scenic highway, travels directly through Madison County paralleling the Pearl River. The 444-mile Natchez Trace Parkway is a National Scenic Byway which is popular for driving, hiking, biking, horseback riding, and camping. Commercial traffic is prohibited on the Trace.