Interstate 55 in Mississippi

Interstate 55
I-55 highlighted in red
Route information
Maintained by MDOT
Length	290.41 mi[1] (467.37 km)
Existed	1955 (proposed in 1939)–present
NHS	Entire route
Major junctions
South end	I-55 at the Louisiana state line near Osyka
Major intersections	US 98 near McComb US 84 in Brookhaven I-20 / US 49 in Jackson and Richland MS 25 in Jackson I-220 in Ridgeland US 82 in Winona US 278 / MS 6 in Batesville I-69 / I-269 in Hernando
North end	I-55 / I-69 at the Tennessee state line near Southaven
Location
Country	United States
State	Mississippi
Counties	Pike, Lincoln, Copiah, Hinds, Madison, Yazoo, Holmes, Carroll, Montgomery, Grenada, Yalobusha, Panola, Tate, DeSoto
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Mississippi State Highway System Interstate US State
← MS 53 → MS 57

Interstate 55 (I-55) is a major north–south Interstate Highway that serves the middle of the United States. It runs 963.5 miles (1,550.6 km) from I-10 in Laplace, Louisiana—about 25 miles (40 km) west of New Orleans—to U.S. Highway 41 (US 41) in Chicago, Illinois. In Mississippi, it runs for about 290.41 miles (467.37 km), entering the state at the Louisiana state line near Osyka and leaving at the Tennessee state line near Southaven, just south of Memphis.