Below is a preliminary precinct map of the 2017 NYC Mayoral Race. New York doesn’t count absentees until well after election day, so this is only of the election day vote. Not all precincts are reporting yet.
As you can see, Malliotakis cleaned up on Staten Island, Southern Brooklyn, and the white parts of Queens and the Bronx. She even won the tonier parts of the Upper East Side. de Blasio won everywhere else. As of right now, Albanese is ahead in one Coney Island precinct.
Here’s a “swing” map of de Blasio’s 2017 general election percentage minus Clinton’s 2016 general election percentage (I took off the precinct lines to make it easier to see Manhattan):
de Blasio outperformed Clinton in many of the Orthodox Jewish neighborhoods, like Borough Park. This probably shouldn’t be so surprising, since Orthodox Jews tend to be less Republican down ballot and Trump won a lot of the Orthodox neighborhoods by large margins. The rest of the map is pretty much the racial map of NYC, with Clinton-supporting whites generally living in the darker blue areas. (Note: I made a computational mistake on my original swing map. It was updated on 11/11).
Perhaps still more to come.