USA is know, for electronic music fans from the rest of the world, as epicentre of EDM, but States are so much more.
Techno originated from Detroit, and House originated from Chicago, Movement in Detroit pushes the boundaries every year and most notable techno names such as Richie Hawtin and Nina Kraviz are playing at even most commercial festivals as Coachella.
So Which US City Has The Most Thriving Underground Techno Scene?
This answer is definitely qualified by what you consider “underground,” but most people would say its New York. Other cities may have larger turnouts & bigger profits for electronic music events, but New York gets the greatest number of lesser-known but critically-acclaimed DJs from overseas while still being close enough to Detroit, Chicago, Montreal, Boston and Philly to draw North American artists without high cost. NYC is the most thriving.