Tesla just updated its global map of Supercharging stations, expanding it with new stations planned for installation.
There are currently some 1,229 Supercharger stations in the world, with 9,623 Superchargers stalls. Between January 1 and May 12 of 2018, Tesla added 121 new stations.
Elon Musk said that there are 1,000s of Superchargers in permitting/construction phases, so let's look at the global map of Tesla Superchargers here. Maybe there are now some new stations coming to routes near you?
Tesla Supercharging network