Lincoln is the capital city of the U.S. state of Nebraska. The city covers 103.9 square miles (269.1 km2) and had a population of 291,082 as of the 2020 census. It is the second-most populous city in Nebraska and the 72nd-most populous in the United States. The county seat of Lancaster County, Lincoln is the economic and cultural anchor of the Lincoln, Nebraska metropolitan area, home to approximately 345,000 people.