Actually, if you look at the area you were canvassing on Google's Election Maps, it looks like you were in a pretty affluent and white area that went solidly for the Republicans in the past several elections.
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More diverse areas are to the west, in Durham, which is substantially more liberal than Raleigh. I can't say, from looking at these maps, that Raleigh is in any way more liberal than the rest of the state. But it is surrounded by some areas which are: to the north west bordering on VA, and to the west in Durham and Chapel Hill.
I'll see if I can add the map info to your Facebook... it doesn't seem to want to work here.
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