Jesup is a city in Buchanan County and only partly in Black Hawk County in the U.S. state of Iowa. The population was 2,520 at the 2010 census. It was named for Morris Ketchum Jesup, president of the Dubuque and Sioux City Railroad.
The Black Hawk County portion of Jesup is part of the Waterloo–Cedar Falls Metropolitan Statistical Area.
The community of Jesup has undergone many changes in recent years. With new subdivisions, the population for the small community is on the rise due to the town's proximity to the Waterloo-Cedar Falls Metropolitan Area metropolitan area.