Adrian College is first with 99.8%.

Incidentally, both are religiously affiliated.

beat Olivet College (97.3%), College for Creative Studies (96.1%), Northern Michigan Univ (92.5%), and U of Phoenix-West Michigan Campus (92.3%), and others, ending with Walsh College of Accountancy and Business Administration (34%).

51 out of the other 77 colleges were ruled out due to missing, unknown, or not-applicable values for undergrads among full-time students, e.g., Baker College of Allen Park.

1. The percentage of ethnic groups or other types of students among all full-time students is calculated 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).
   
2. College geographic information is from the IPEDS Directory, 2012-13 (Provisional release) by the National Center for Education Statistics (http://nces.ed.gov/ipeds).
   

Kuyper College is in Grand Rapids, MI, is private and nonprofit, degree-granting, religiously affiliated, offers on-campus housing, requires test scores for undergrad admissions, its top major is social work, is on the semester system, its top Associates major is executive assistant/executive secretary, Bible/biblical studies, liberal arts and sciences, general studies and humanities, other, and liberal arts and sciences/liberal studies, and enrolls fewer than 1,000 students.

• average full-time teaching salary ($54,353)
• endowment per full-time student ($23,601)
• in-state undergrad tuition & fees ($17,950)
• out-of-state undergrad tuition & fees ($17,950)
• average grant aid to undergrads ($8,435)
• cost of typical room and board ($6,720)
• average undergrad student loan ($6,198)
• research spending ($0.0K)
• research spending per student ($0.0)
• undergrads among full-time students (98.8%)
• undergrads who get financial aid (98%)
• full-time retention rate (76%)
• undergrads who receive student loans (74%)
• in-state freshmen (73.5%)
• ratio of female full-time freshmen (54.4%)
• undergrads who get Pell grants (46%)
• grad students who are under 25 years old (25%)
• tuition & fees increase over three years (18%)
• undergrads who are 25 years or older (15.5%)
• average teaching salary differential (men vs. women, 9%)
• minorities (8.7%)
• foreign students (3.8%)
• Blacks or African Americans (3.5%)
• Hispanics (1.9%)
• Asians (1.9%)
• American Indians or Alaska Natives (1.4%)
• non-resident tuition & fees surcharge (0%)
• average teaching salary differential (women vs. men, -8.2%)
• 25th percentile SAT math score (470)
• 25th percentile SAT reading score (420)
• 25th percentile SAT writing score (420)
• 75th percentile SAT math score (560)
• 75th percentile SAT reading score (610)
• 75th percentile SAT writing score (600)
• alumni who played in the National Football League (0)
• average January temperature (24.4 degrees)
• dorm capacity (166)
• first-year applicants (201)
• foreign students (16)
• full-time grad students (2)
• full-time undergrads (272)
• grad students (4)
• members of the National Academy of Sciences (0)
• men's basketball Final Four appearances (0)
• Rhodes Scholar alumni (0)
• total 75th percentile SAT score (1,770)
• undergrads (316)
• yearly for-credit students (426)
• on-campus yearly property crimes per thousand students (0.8)
• students per faculty member (13)
• annual rainfall (38.3 inches)
• elevation (245 meters)

Sources