Greensboro is a city in the U.S. state of North Carolina. It is the third-largest city by population in North Carolina and the largest city in Guilford County and the surrounding Piedmont Triad metropolitan region. According to the 2011 U.S. Census Estimate, Greensboro's population is 273,425. The city is located at the intersection of two major interstate highways (I-85 and I-40) in the Piedmont region of central North Carolina. In 2003, the previous Greensboro Winston-Salem High Point metropolitan statistical area (MSA) was re-defined by the U.S. Office of Management and Budget, resulting in the formation of the Greensboro-High Point MSA and the Winston-Salem MSA. The 2010 population for the Greensboro-High Point MSA was 723,801. The Greensboro Winston-Salem High Point combined statistical area (CSA), popularly referred to as the Piedmont Triad, had a population of 1,599,477.
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