Not sure if this is the most recent list, but it is the latest one that I could find from this thread:
http://talk.collegeconfidential.com/musical-theater-major/503504-audition-class-size-numbers-p20.html
These numbers can vary from year-to-year for various programs, so I would regard them as “indicative” as opposed to “definitive.”
This list is from 2014:
Baldwin Wallace MT (BM): 18 (10 men and 8 women)
Ball State MT (BFA): 22 (11 men and 11 women)
Boston Conservatory MT (BFA): 56 (16 men and 40 women)
Cincinnati Conservatory MT (BFA): 20 (13 men and 7 women)
Coastal Carolina University MT (BFA): 10 (4 men and 6 women)
Elon University MT (BFA): 20 (9 men and 11 women)
Florida State University (BFA/BM): 9 (6 men and 3 women)
Ithaca MT (BFA): 25 (15 men and 10 women)
James Madison MT (BA): 11 freshmen + 1 transfer = 12 (6 men and 6 women)
U of Michigan MT (BFA): 21 (10 men and 11 women)
Montclair MT (BFA): 21 (10 Men/11 Women)
Ohio Northern (BFA) 20 (6 Men/14 Women)
Otterbein MT (BFA): 8 (4 men and 4 women)
Pace MT (BFA): 31 (14 men and 17 women)
Penn State MT (BFA): 16 (10 men and 6 women)
Rider MT (BFA): 49 (11 Men and 38 women)
Royal Conservatoire of Scotland MT (3-yr BA): 18 (9 men/9 women. Americans: 2 men/3 women)
Shenandoah MT (BFA): 18 (7 men and 11 women)
Texas State MT (BFA): 14 (8 men and 6 women)
Viterbo MT (BFA): 9 (1 man and 8 women)
Western Michigan (BFA): 15 (typically something like 8 men/7 women)
Wright State MT (BFA): 13 (7 men/6 women)
This list is from 2012-13:
Baldwin Wallace MT: 16 (7 men and 9 women)
Ball State MT (BFA): 20 (8 men and 12 women)
Boston Conservatory MT: 65 total (15 more accepted than anticipated)
Carnegie Mellon MT (BFA): 12 (7 men and 5 women)
CCM MT (BFA): 18 (9 men and 9 women)
Coastal Carolina MT (BFA): 12 (4 men and 8 women - twice the women accepted offer than anticipated)
Coastal Carolina Acting (BFA): 10 (4 men and 6 women)
Elon MT (BFA): 18 (9 men and 9 women)
Emerson MT: 14 (13 women and 1 man)
University of Florida MT: 4 (2 men and 1 woman, 1 sophomore transfer)
Florida State MT: (BFA) 7; (BM) 3 (3 men and 4 women total)
Illinois Wesleyan MT: 7 (4 women, 3 men)
Hartt MT: (BFA) 23 (15 women, 8 men) Acting (BFA) 12 (8 men, 4 women)
Ithaca College (BFA): 26 MT (15 women, 11 men), 34 Acting
James Madison MT (BA): 11 (6 men and 5 women)
Michigan MT (BFA): 21 (11 men and 10 women)
Montclair: 20 (10 men and 10 women)
New York University: Tisch NSB - 61,
NYU Steinhardt: 24
Northwestern U (BA/MT Cert): 15 frosh (6 M and 9 F) {see post #21}
Ohio Northern (BFA): 5 (4 women and 1 man)
Oklahoma City MT: 27 (14 men and 13 women)
Otterbein MT (BFA): 9 (4 men and 5 women)
Otterbein Acting (BFA): 6 (2 men and 2 women)
Pace (BFA-MT): 35 (17 men and 18 women)
Penn State MT (BFA): 11 (4 men, 7 women) (usually alternate odd years 12, even years 14)
Point Park (BA/BFA MT) 35 (22 men, 13 women)
Rider (BM MT): 10 men 20 women
Roosevelt/CCPA: MT Voice Emphasis -27, Dance Emphasis -17
Royal Conservatoire of Scotland MT (BA): 18 (3 American Students)
Shenandoah MT (BFA): 18 (7 men and 11 women)
SUNY Fredonia MT (BFA): 14 (4 men and 10 women)
SUNY Fredonia Acting (BFA): 4 (1 man and 3 women)
Syracuse MT (BFA) 20 (8 men and 12 women)
Texas State Acting (BFA): 12 (6 men and 6 women)
Texas State MT (BFA): 14 (5 men and 9 women)
U of California, Los Angeles MT: 7 (3 men and 4 women)
U of Northern Colorado MT: 16 (5 F and 11 M + 2 sophomore F transfers)
U Michigan MT (BFA): 21 (11 men and 10 women)
U of Utah (BFA): 22 (8 men and 14 women)
Wagner College (BA MT): 30 (15 men and 15 women)
Webster University (BFA MT): 19 Total
Webster University (BFA Acting) : 16 Total
Wright State (BFA MT): 14 (7 men and 7 women)
Wright State (BFA Acting): 14 (7 men and 7 women)