Greater Orlando, commonly referred to as the Orlando metropolitan area, Metro Orlando, and for U.S. Census purposes as the Orlando–Kissimmee–Sanford, Florida Metropolitan Statistical Area, is a metropolitan area in the central region of the U.S. state of Florida. Its principal cities are Orlando, Kissimmee and Sanford. The U.S. Office of Management and Budget defines it as consisting of the counties of Lake, Orange (including Orlando), Osceola, and Seminole.