Template:Wp-Douglas County, Nebraska

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Douglas County is a county located in the U.S. state of Nebraska. As of the 2020 United States Census, the population is 584,526. It is the state's most populous county, home to well over one-fourth of Nebraska's residents. Its county seat is Omaha, the state's largest city. The county was established in 1854 and named after Stephen A. Douglas (1813–1861), who was then serving as Senator from Illinois.

Douglas County is part of the Omaha-Council Bluffs, NE-IA Metropolitan Statistical Area.

In the Nebraska license plate system, Douglas County was represented by the prefix "1" (as it had the largest number of vehicles registered in the state when the license plate system was established in 1922). In 2002, the state discontinued the 1922 system in the three most populous counties: Douglas, Lancaster, and Sarpy counties.