Here is a link to an interesting table of where all the Tesla Superchargers (in the US) are located sorted by category of location, year by year since 2012.
There are a total of about 1500 US locations as of the end of Q2 including a few in final construction.
Surprisingly more than half the locations are at existing gas stations or malls (desperate for customers to park and spend time???). Gas stations are behind malls (338 vs 416) but are gaining ground.
This doesn’t take into account the number of plugs per location which is about 9 worldwide. Destination chargers at locations like hotels are not considered superchargers.
Worldwide there are ~4000 locations with 36000 plugs.
https://en.wikipedia.org/wiki/Tesla_Supercharger
Mike