Allow me to throw in my two cents worth.
First, I would have your daughter consider Tulane. Most of the students there are not from Louisiana, but are from New York, California, and Florida; and, for what it’s worth, the student body is about 30-35% Jewish. Also, having lived in New Orleans myself, I would say that the part of town that Tulane is in (“Uptown”) is not a high-crime part of NOLA (of course, there is going to be crime everywhere); and I think that the campus does a good job with security. If you just use common sense, your daughter shouldn’t have any problems. And if your daughter has high test scores and GPA, Tulane can be generous with merit aid. Generally, you may want to look at some of the threads on the Tulane forum.
Second, several of the schools in the South that have been mentioned by posters here have a relatively large percentage of people from north of the Mason-Dixon line: Duke, UNC, Emory, and University of Richmond come readily to mind. (When I visited the University of Richmond last year, the admissions officer giving our tour pointed out that 18% of the undergraduates at Richmond were from Virginia, and that most of the undergraduates there hailed from Pennsylvania, New Jersey, and Connecticut – so a good mixture of North and South.) You might also look at Vanderbilt; it is making a real effort to admit even more kids from outside Tennessee than it usually does, in order to be perceived as more of a “national” university, a la Duke. Additionally, Rice might fit your bill; it has a very diverse student population as well even though it is located in Texas.
Third, the College of Charleston is about 2/3 female, which would make me concerned about distorted social dynamics because of the male/female imbalance. Also, the president of College of Charleston is a political appointee, as well as a Confederate civil war re-enactor – I’m not sure how well that’s going over these days.
Fourth, the matter of rowing – I think that some of the larger schools probably have varsity female rowing teams (a look at their athletics websites should tell you that). If your daughter attends Emory and wants to row, but is not varsity material, then Atlanta has a pretty good community rowing program through the Atlanta Rowing Club; the ARC co-sponsors the Head of the Hooch (Chattahoochee) regatta every fall, although the actual race venue has been moved to Chattanooga because it outgrew the facilities in Atlanta.
I sum, I think that there are a good number of places where your daughter can attend college in the South, and not feel out of place.