The good news? MA and NY are the only states losing population, hence less seats (for dems) in the House.
Statewide, the ratio is 5 to 3 Dem. It's NYC that's 90 percent Dem, while Staten Island is pretty evenly split (and usually doesn't count itself as part of NYC, although technically it is).
I won't even get into the Bronx-Brooklyn feud. ;-)