It's actually my understanding that Morehouse(probably one of the most prominent black only universities) has been having trouble in recent years getting enough students because so many blacks are going to other universities.
I was reading an article about black universities the other day and I was suprised to see that almost every black university in the country is in the south. From the list I only saw 2-3 universities in northern states while 45 or so were in the south.
I can think of two in the Greater Philadelphia Area, Cheney and Lincoln; I suspect your article is wrong.
Well coming from a black magazine I'd hope it's not. It listed all the major black colleges in the US.
Out of curiosity, why were you reading a black magazine?