@par72 is correct. Holy Cross has an outstanding classics department. Probably the best of any liberal arts college in America. Of course, Holy Cross is Catholic (Jesuit) and Catholic schools are probably more likely to be committed to the classics than is any other type of college. So, Georgetown is probably a good choice.
Others to look at:
Northwestern
Fordham
University of North Carolina - Chapel Hill (if memory serves, UNC has the most classics professors in the country)
University of Michigan (maybe it’s UM which has the most profs, I dunno)
Ohio State (plus the “not to be confused with” Ohio University-Athens)
Boston University (has a “Classics House” residential program)
http://www.bu.edu/classics/undergraduate/classics-house/
U.Kentucky – okay, stop laughing, it has an excellent program and also holds “conversational Latin” seminars each summer.
http://mcl.as.uky.edu/conversational-latin-seminar-2015-english
http://mcl.as.uky.edu/conventiculum-latinum-lexingtoniense-2015-latine
