The City of Dallas is the third-largest city in the state of Texas and the ninth-largest city in the United States. The city covers 385 square miles (997 km²) and is the county seat of Dallas County.As of July 1, 2006, U.S. Census estimates put Dallas at a population of 1,232,940. The city is the main cultural and economic center of the 12-county Dallas–Fort Worth–Arlington metropolitan area—at 6 million people, it is the fourth-largest metropolitan area in the United States.Dallas is listed as a gamma world city by the Loughborough University Globalization and World Cities Study Group & Network.---------Dallas was founded in 1841 and formally incorporated as a city on 2 February 1856. The city is well known for its role in the petroleum industry, telecommunications, computer technology, banking, and transportation. It is the core of the largest inland metropolitan area in the United States and lacks any navigable link to the sea.—Dallas's prominence despite this comes from its historical importance as a center for the oil and cotton industries, its position along numerous railroad lines, and its powerful industrial and financial tycoons.----------The City of Dallas has many communities and neighborhoods. Major areas in the city include:Central Dallas is anchored by Downtown, the center of the city and the epicenter of urban revival, coupled with Oak Lawn and Uptown Dallas, new urbanist areas anchored by dense retail, restaurants, and nightlife. Downtown Dallas has a variety of neighborhoods, including the West End Historic District, the Arts District, the Main Street District, Farmers Market District, the City Center business district, the Convention Center District, the Reunion District and Victory Park. North of downtown is Oak Lawn, a densely-populated area that contains beautiful parks along Turtle Creek and the popular Uptown area with LoMac, Cityplace and the West Village.
The east side of Dallas contains the community of east Dallas, home to Deep Ellum, a trendy arts area close to downtown, homey Lakewood, the historic Vickery Place, Bryan Place, and historically and architecturally significant homes on Swiss Avenue. Above the Park Cities is north Dallas, home to mansions as palatial as Versailles in Preston Hollow, strong middle and upper-class communities north into Bent Tree and Far North Dallas, and high-powered shopping at Galleria Dallas, NorthPark Center, and Preston Center. East of north Dallas and north of east Dallas is Lake Highlands, one of the most unified middle-class areas in the city, with the strongest definition—it is in the northeastern part of the city above White Rock Lake and east Dallas.-----------------The southern portion of Dallas is home to Oak Cliff, a hilly area in southwest Dallas that is predominantly Hispanic and includes entertainment districts such as the Bishop Arts District. South Oak Cliff became a predominantly African American district after the early 1970s and has struggled with high rates of poverty and crime. To the east, south Dallas lays claim to the Cedars, an eclectic artist hotbed south of downtown, Fair Park, and areas west of the Trinity River and east of Interstate 35E. The University of North Texas at Dallas, currently located south of Oak Cliff along Interstate 20, is being built in the area along Houston School Road.Further east, above (north and east of) the Trinity River, is Pleasant Grove—once an independent city, it is a predominantly black collection of neighborhoods stretching to Seagoville to the southeast.
The city is further surrounded by many suburbs and encloses the following enclaves: Cockrell Hill, Highland Park and University Park.