Midland is a city in and the county seat of Midland County, Texas, United States, on the Southern Plains of the state's western area. At the 2010 census, the population of Midland was 111,147, and a 2011 estimate of 113,931, making it the twenty-eighth most populous city in the state of Texas. Due to the oil boom in Midland, certain officials have estimated the population to be hovering around 155,000 to 165,000. The Midland metropolitan area's, composed of Midland County, population grew 4.6 percent to 151,662 between July 1, 2011, and July 1, 2012, according to the U.S. Census Bureau. People in Midland are called Midlanders.