Omaha (pronounced /ˈoʊməhɑː/) is the largest city in the state of Nebraska, United States, and is the county seat of Douglas County.[5] It is located in the Midwestern United States on the Missouri River, about 20 miles (30 km) north of the mouth of the Platte River. Omaha is the anchor of the Omaha-Council Bluffs metropolitan area, which includes Council Bluffs, Iowa, across the Missouri River from Omaha.
According to the 2010 Census, Omaha's population was 408,958, making it the nation's 42nd-largest city. Including its suburbs, Omaha formed the 60th-largest metropolitan area in the United States in 2010, with an estimated population of 865,350 residing in eight counties. There are more than 1.2 million residents within a 50-mile (80-km) radius of the city's center, forming the Greater Omaha area.
Omaha's pioneer period began in 1854 when the city was founded by speculators from neighboring Council Bluffs, Iowa. The city was founded along the Missouri River, and a crossing called Lone Tree Ferry earned the city its nickname, the "Gateway to the West." During the 19th century, Omaha's central location in the United States caused the city to become an important national transportation hub. Throughout the rest of the 19th century, the transportation and jobbing sectors were important in the city, along with its railroads and breweries. In the 20th century, the Omaha Stockyards, once the world's largest, and its meatpacking plants, gained international prominence.
Today, Omaha is the home to five Fortune 500 companies: ConAgra Foods, Union Pacific Corporation, Mutual of Omaha, Peter Kiewit and Sons, Inc., and Berkshire Hathaway.[6] Berkshire Hathaway is headed by local investor Warren Buffett, who was the richest person in the world for the first half of 2008.[7] Omaha is also the home to four Fortune 1000 headquarters, TD Ameritrade, West Corporation, Valmont Industries, and Werner Enterprises. First National Bank of Omaha is the largest privately held bank in the United States. Headquarters for Leo A Daly, HDR, Inc. and DLR Group, three of the US's top 30 architectural and engineering firms, are located in Omaha.
The modern economy of Omaha is diverse and built on skilled knowledge jobs. In 2009, Forbes identified Omaha as the nation's number one "Best Bang-For-The Buck City" and number one on "America's Fastest-Recovering Cities" list. Tourism in Omaha benefits the city's economy greatly, with the annual College World Series providing important revenue and the city's Henry Doorly Zoo serving as the top attraction in Nebraska. Omaha hosted the Olympic swim trials in 2008, and is scheduled to do so again in 2012.
A historic preservation movement in Omaha has led to a number of historic structures and districts being designated Omaha Landmarks or listed on the National Register of Historic Places. Since its founding, ethnic groups in the city have clustered in enclaves in north, south and downtown Omaha. In its early days, the city's history i