Approximately 1.5 million people reside within the Greater Omaha area, within a 50 mi (80 km) radius of Downtown Omaha. The Omaha-Council Bluffs-Fremont, NE-IA Combined Statistical Area (CSA) totaled 1,004,771, according to 2020 estimates. The Omaha Metropolitan Area is the 58th-largest in the United States, with a population of 967,604.
Omaha is the anchor of the eight-county, bi-state Omaha-Council Bluffs metropolitan area. The nation's 39th-largest city, Omaha's 2020 census population was 486,051. Omaha is in the Midwestern United States on the Missouri River, about 10 miles (15 km) north of the mouth of the Platte River. state of Nebraska and the county seat of Douglas County. Omaha ( / ˈ oʊ m ə h ɑː/ OH-mə-hah) is the largest city in the U.S.