It seems that in Brooklyn, Queens, Bronx, and Staten Island, the Republicans did well in the predominately white areas, but in Manhattan, even the predominately white areas went massively Democrat. Could this have something do with wealth and education as I believe Manhattan is quite wealthy and has a very high percentage with university degrees. Also, how much of Manhattan is Jewish since it seems the Republicans did well amongst the Irish and Italian (Catholics) and Orthodox Jews, but got clobbered amongst the non-Orthodox Jews.
Also I believe Kerry won every precinct in Manhattan in 2004. If I am not mistaken I believe it was the only borough to go for Kerry in every precinct. One precinct in Brooklyn though went 96% for Bush. I would be interested in knowing where that one was.