According to PlugShare.com, the growth rate in 2019 was about 33% year-over-year, from roughly 60,000 in 2018.
Those numbers include both SAE J1772 AC charging points (usually several kW, up to 19.2 kW) as well as the DC chargers (all types and power output usually from 20 to 350 kW).
The expansion of charging infrastructure - publicly available charging points (often called also "stations", even if there is just single AC charging terminal).
The charging network is highly diverse geographically and, as it turns out, about a quarter of all public charging points are located in California.
However, there is not much to envy California, as almost half of all plug-ins were sold there, which makes the relative availability of charging points per number of plug-ins lower than average in the country (at least in theory).
The top four states by the number of charging points:
- California: 20,904
- Texas: 4,393
- New York: 4,268
- Florida: 3,602
And here is the list of all states alphabetically: