Note: Only four-year public and private nonprofit degree-granting institutions that had tenure systems in 2018-19 and were eligible to participate in the federal Title IV student financial-aid program were considered for this analysis. Colleges with fewer than 200 full-time-equivalent undergraduates in 2018-19 or fewer than 10 full-time instructional-staff members in the fall of 2018 were excluded. The number of full-time-equivalent, or FTE, students is the sum of the numbers of full-time-equivalent undergraduate, graduate, and doctor-of-professional-practice students in the 2018-19 academic year. The U.S. Department of Education estimated the FTE numbers using formulas based on the total number of credit or contact hours of students at the institution. Most colleges accepted those estimates as an accurate assessment; in some cases, colleges disagreed with the estimates and reported their own figures, which are used here. Tenured and tenure-track faculty members were counted only if they were full-time instructional-staff members in the fall of 2018. Part-time faculty members, who carry a substantial part of the teaching load at many institutions, were not considered. A college where 100 percent of full-time faculty members are tenured or on the tenure track may still have numerous courses taught by part-time adjunct professors. The absence of data is represented by a dash. Institutions are ranked by the lowest to highest number of FTE students per full-time tenured or tenure-track faculty member. The numbers of FTE students per tenured or tenure-track faculty members are rounded, but institutions were ranked before rounding. Tied institutions are listed alphabetically.