Madison County is a county in the U.S. state of Nebraska. As of the 2020 United States Census, the population was 35,585. Its county seat is Madison and its largest city is Norfolk. Madison County was likely named for Madison, Wisconsin, which is where many of the county’s residents came from; the city was named for James Madison, fourth President of the United States.

Norfolk is a city in Madison County, Nebraska, United States, 113 miles northwest of Omaha and 83 miles west of Sioux City at the intersection of U.S. Routes 81 and 275. The population was 24,955 at the 2020 census, making it the seventh-most populous city in Nebraska. It is the principal city of the Norfolk Micropolitan Statistical Area.