Omaha is the most populous city in the U.S. state of Nebraska. It is located in the Midwestern United States along the Missouri River, about 10 mi north of the mouth of the Platte River. Omaha had a population of 486,051 at the 2020 census, and with a 2025 population estimate of 488,797, it is the 42nd-most populous U.S. city. The eight-county Omaha–Council Bluffs metropolitan area extending into Iowa has approximately 1 million residents, the 55th-largest metropolitan area in the U.S. It is the county seat of Douglas County. Omaha's pioneer period began in 1854, when the city was founded along the Missouri River by speculators from neighboring Council Bluffs, Iowa. It originally comprised a crossing called Lone Tree Ferry earning the city its nickname, the "Gateway to the West". Omaha introduced this new West to the world in 1898, when it played host to the World's Fair, dubbed the Trans-Mississippi Exposition.

County: Douglas
Founded: 1854
Incorporated: 1857
Named for: Omaha people
Type: Strong mayor–council
Mayor: John Ewing Jr. (D)
City Clerk: Elizabeth Butler
Population (2020): 486,051
Estimate (2025): 488,797
Rank: 42nd in the United States, 1st in Nebraska
Urban: 819,508 (US: 55th)
Metro: 1,001,010 (US: 55th)
Demonym(s): Omahan
Time zone: CST (UTC−06:00)
Summer (DST): CDT (UTC−05:00)
ZIP Codes: 68101-68114, 68116-68119, 68122, 68124, 68127, 68130-68132, 68134-68139, 68142, 68144-68145, 68147, 68152, 68154, 68157, 68164, 68172, 68175-68176, 68178-68180, 68182-68183, 68197-68198
Area code: 402 and 531
FIPS code: 31-37000
GNIS feature ID: 0835483
Website: [www.cityofomaha.org cityofomaha.org]
Official Website: https://www.cityofomaha.org/
Wikidata description: seat of Douglas County, and largest city in State of Nebraska, United States
Wikidata id: Q43199
Wikidata label: Omaha
Wikidata aliases: Array
Source
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