Since it's been mentioned several times on this thread, here's a a link to an image of the municipalities in the Triangle area. In this image, the darker the color, the more densely populated. This map does not account for development that's outside of the municipal limits, and will likely stay a bit wonky south of Raleigh proper for quite some time since recent state law makes it nearly impossible for Raleigh to annex that void, which is mostly in Raleigh's ETJ. I doctored the map to show where RTP (Research Triangle Park) and RDU International are, since they show up as non-municipal voids. You'll also notice that the the SW and NE sides of the group of municipalities on the map have two reservoirs. These areas are also unincorporated because of their watersheds and the low density housing zoning that protects the drinking water from the reservoirs.
Yes folks, according to the OMB, this is two different MSAs. It's head scratching if you ask me.
https://www.city-data.com/forum/atta...angle-copy.png