Where would Batman be without his cave or his bats? It is often assumed Gotham City is a neighbor to NYC or Chicago but neither is particularly known for its karst geology. If Gotham City is “close” to Chicago it is more likely deeper into the Ohio River Valley and closer to its intricate limestone cave systems. Batman is therefore likely to be a Hoosier and Gotham somewhere in Indiana. In this essay I will
Taking this too seriously, I bet BUT
Officially it's in "the Northeastern United States" on the Atlantic Coast.
Traditionally it's in New Jersey.
@jenny753 it IS true that NJ is oddly weak in the area of caves, for a hero who’s whole schtick is being named after cave bats but they do have a few manmade ones! (aka defunct mines or excavated underground springs)
However the mountains in PA and NY have wayyy more caves so it definitely is tempting to nudge Gotham over a little while still acknowledging its east coast vibes
