List of Interstate Highways in Mississippi

In the U.S. state of Mississippi, Interstate Highways are maintained by the Mississippi Department of Transportation (MDOT).

Standard route shields
Interstate Highways highlighted in red
Highway names
Interstates	Interstate X (I-X)
US Highways	U.S. Route X (US X)
State	Mississippi Highway X (MS X)
System links
Mississippi State Highway System Interstate US State

Primary highways

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-10	77.056	124.010	I-10 at Louisiana state line (East Pearl River) east of Slidell	I-10 at Alabama state line near Missala	—	—
I-14	—	—	Louisiana state line	Alabama state line	proposed	—	Proposed across the central part of the state, from the Louisiana state line (Mississippi River) near Natchez to the Alabama state line near Meridian; Proposal for the Fourteenth Amendment Highway
I-20	154.5	248.6	I-20 at Louisiana state line (Vicksburg Bridge) near Vicksburg	I-20/I-59 at Alabama state line near Kewanee	—	—
I-22	106.0	170.6	US 78/I-269 in Byhalia	I-22 at Alabama state line east of Tremont	—	—
I-55	290.41	467.37	I-55 at Louisiana state line near Osyka	I-55 at Tennessee state line near Southaven	—	—
I-59	169	272	I-59 at Louisiana state line (East Pearl River) near Nicholson	I-20/I-59 at Alabama state line near Kewanee	—	—
I-69	23.390	37.643	MS 304/MS 713 east of Banks	I-55 north of Hernando	—	—	Present highway co-signed with I-55 from eastern terminus to Tennessee state line. Proposed section to run from western terminus using existing US 61 roadbed to Greenville Bridge near Refuge

Auxiliary highways

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-110	4.10	6.60	US 90 in Biloxi	I-10 in D'Iberville	01988-01-011988	current
I-220	12.01	19.33	I-20 in Jackson	I-55 in Ridgeland	01981-01-011981	current	Beltway around northwestern Jackson
I-269	23.79	38.29	I-55/I-69 in Hernando	I-269 at Tennessee state line near Southaven	02015-01-012015	current	Outer beltway of Memphis, northern beltway in Tennessee signed as SR 385
I-310	6	9.7	US 90 in Gulfport	I-10 in Gulfport	proposed	—	Proposed connector to the Port of Gulfport; also has the designation of MS 601

See also

• Mississippi portal
• U.S. Roads portal