The U.S. state with the shortest stretch of the Mississippi River within its borders is Iowa.

Iowa boasts the shortest stretch of the Mississippi River of any state, spanning approximately 11 miles along its eastern border. Despite its brevity, this segment is crucial to Iowa's economy and ecology, offering essential habitat for diverse wildlife and serving as a recreational resource. The river enhances local tourism by providing opportunities for fishing, boating, and appreciating picturesque views, underscoring the link between Iowa's culture and this important waterway.