TIL that Brooklyn New York has a bigger Jewish population than Jerusalem. 1 out of every 4 people in Brooklyn is Jewish and it has been called "the most Jewish spot on Earth".

https://www.hadassahmagazine.org/2018/01/11/brooklyn-jewish-spot-earth/

https://www.reddit.com/r/todayilearned/comments/15ystcx/til_that_brooklyn_new_york_has_a_bigger_jewish/