The Nashville metropolitan area (officially, the Nashville-Davidson–Murfreesboro–Franklin, TN Metropolitan Statistical Area) is a metropolitan statistical area centered on Nashville, Tennessee, the capital and largest city in Tennessee, in the United States. With a population of just over 2 million, it is the most populous metropolitan area in Tennessee. It is also the largest metropolitan area in Tennessee, in terms of land area. The Office of Management and Budget defines the metro area for statistical use by the United States Census Bureau and other agencies. The area is the 35th largest metropolitan area in the United States. The metropolitan statistical area was first designated in 1950 and initially included only Davidson County. As surrounding counties increased in population and densities and in the number of their residents employed in Davidson County, the OMB added new counties to the MSA. Today, the metro area includes Davidson and 12 other counties.