Omaha is the largest city in the State of Nebraska, United States. It is the county seat of Douglas County. As of the 2000 census, the city had a population of 390,007. According to the 2006 census estimate, Omaha's population rose to 427,872, which includes an extra population count of approximately 8,300 people by annexing the smaller city of Elkhorn. Located on the eastern edge of Nebraska, it is on the Missouri River, about 20 miles north of the mouth of the Platte River. Omaha is the anchor of the Omaha-Council Bluffs metropolitan area. Council Bluffs, Iowa lies directly across the Missouri River from Omaha. The city and its suburbs formed the 60th-largest metropolitan area in the United States in 2000, with an estimated population of 822,549 residing in eight counties or about.2 million within a 50 mile radius. Omaha apartments for rent comparison page shows most up to date rent information on Omaha apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.