There are over 700 lines of XML matching the neighborhood names with their corresponding coordinates on this map, so there will probably be some mistakes or tiles with no assigned neighborhood names. Please report any problems you encounter and I'll try to fix them :)

FYI the neighborhood names and location of this map is based on this NYC neighborhoods map: https://www.google.com/maps/d/u/0/viewer?mid=1_gsxJNfmcGZI4ZL_7LnEHj72YpvgNq-w&hl=en&ll=40.84485106795776%2C-73.8465249127383&z=14

Beyond NYC, the parts of New York State that connect to the 5 Boroughs also got some neighborhood names, but I only did them roughly and they may not be very accurate. There is no plan to add neighborhood names to New Jersey.