This article presents lists of the top ten schools with most students, largest enrollment, and other categories for 2011 in the U.S. The school districts with most student for 2010-2011 are New York City with 1,043,886 followed by Los Angeles with 667,251, Chicago with 403,770 and down to the 10th spot Orange County (Fla.) with 175,986. The higher-education institutions with the largest enrollment for fall 2010 include the University of Phoenix-online with 307,965, Kaplan University with 77,966, Arizona State University with 70,440 and with Lone Star (Texas) College System with 54,412 on the tenth place. Topping the list of states with most students in public elementary and secondary schools are California with more than 6 million, Texas with more than 4 million and New York with over 2 million students.