The university is classified among "D/PU: Doctoral/Professional Universities". Total enrollment in fall 2015 was 14,265, the largest overall enrollment in the university's history. The new freshman class of 2015 of 2,096, representing the second largest group of new freshmen in SIUE's history. The average ACT Score for SIUE's fall 2015 freshman class was 23.2; the national average freshman ACT score is 20.9. There are more than 91,000 living alumni. The student body in the fall of 2013 came from all 102 Illinois counties, 38 states, and 43 foreign nations. The international student population exceeds 300. The top five countries represented on campus are India, Turkey, Iran, China, and Nigeria.