U of Phoenix-Online Campus is first with 442,033.

Incidentally, both enroll 20,000 or more students.

beat American Public Univ System (110,644), Miami Dade College (100,855), Liberty Univ (95,639), and Arizona State (81,789), and others, ending with Lester E Cox Medical Center-School of Medical Technology (7).

7 out of the other 3,121 colleges were ruled out due to missing, unknown, or not-applicable values for yearly for-credit students, e.g., Chamberlain College of Nursing-Georgia.

1. The number of yearly for-credit students is from the 12-month Unduplicated Head Count Data File, 2011-12 (Provisional release) as reported by the National Center for Education Statistics (http://nces.ed.gov/ipeds).
   

Ashford Univ is in Clinton, IA, is private and for-profit, degree-granting, has its top Associates major in business, has its top major in business, offers on-campus housing, is on the semester system, its top Masters major is business administration and management, and enrolls 20,000 or more students.

• PayScale mid-career median salary ranking (1,006th place)
• average full-time teaching salary ($57,054)
• in-state undergrad tuition & fees ($9,936)
• out-of-state undergrad tuition & fees ($9,936)
• average undergrad student loan ($7,138)
• average grant aid to undergrads ($6,291)
• cost of a shared room ($2,600)
• endowment per full-time student ($0)
• undergrads who get financial aid (95%)
• undergrads who receive student loans (87%)
• undergrads who get Pell grants (84%)
• ratio of female full-time freshmen (70.4%)
• minorities (48.3%)
• full-time retention rate (39%)
• Blacks or African Americans (37%)
• tuition & fees increase over three years (15.3%)
• Hispanics (9%)
• in-state freshmen (3.6%)
• average teaching salary differential (women vs. men, 1.4%)
• Asians (1.2%)
• American Indians or Alaska Natives (1.1%)
• foreign students (0.1%)
• non-resident tuition & fees surcharge (0%)
• average teaching salary differential (men vs. women, -1.4%)
• 25th percentile SAT math score (440)
• 25th percentile SAT reading score (400)
• 25th percentile SAT writing score (380)
• 75th percentile SAT math score (550)
• 75th percentile SAT reading score (510)
• 75th percentile SAT writing score (470)
• alumni who played in the National Football League (0)
• average January temperature (21.4 degrees)
• dorm capacity (560)
• first-year applicants (5,951)
• foreign students (175)
• members of the National Academy of Sciences (0)
• men's basketball Final Four appearances (0)
• Rhodes Scholar alumni (0)
• total 75th percentile SAT score (1,530)
• yearly for-credit students (169,843)
• on-campus yearly property crimes per thousand students (0.0)
• students per faculty member (21)
• annual rainfall (33.6 inches)
• diversity and inclusion ratio (0.04)
• elevation (198 meters)

Sources