The area's with a bunch of talent lately seems to be:
Carolina's for Pass Rushers
Georgia for Lineman, WR, QB's
Louisiana for RB/DT/WR
DMV for good defensive players
Cali
Texas
Florida
Like someone mentioned above, if we're talking about talent in a concentrated area, Georgia isn't that far behind the Top 3 states. Not even a stretch anymore to consider it a Top 4 now, with Georgia being right up there.