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.
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.
Douglas County is governed by a board of seven county commissioners, elected to staggered four–year terms. County courthouse positions are also elected on a partisan basis. Most of the county’s offices are located at the Douglas County Courthouse.
For much of the time after World War II, Douglas County was one of the more conservative urban counties in the United States. It supported the Republican candidate for president in all but one election from 1952 to 2004. However, it has become a far more competitive county in national elections compared to the rest of the state in the last ten years. Barack Obama won a majority of the county’s votes in 2008, becoming the first Democrat to do so since 1964. He also narrowly carried the 2nd congressional district as well, garnering him one electoral vote statewide. It swung back to the Republican column in 2012 with Mitt Romney winning the county by an even closer majority. The county swung back to Democratic hands in 2016 with Hillary Clinton winning a plurality of its votes, but unlike Obama eight years prior she failed to carry the 2nd congressional district. In 2020, Joe Biden won the county by 11 points, a 56-year high for Democrats, and flipped the 2nd district back into the Democratic column. Congressman Don Bacon, a Republican won Douglas County in his race.