This market size measures the number of degree-granting institutes of higher education. The enrollment figure excludes students taking classes by mail, radio or TV as well as students attending branches of U.S. institutions operated outside the United States.

Geographic reference: United States
Year: 2006
Market size: 4,352 institutions enrolling 17.76 million students
Source: Statistical Abstract of the United States: 2010, Table 271, December 2009 available online here.
Original Source: U.S. Bureau of the Census and the U.S. National Center for Education Statistics