I've found they tend to be out of the way or attached to shopping centers/big box stores/other places you wouldn't expect. It's rare to find a charging station with gas-station-like visibility, the numbers just aren't there yet I guess.
The closest Supercharger is about 40 miles away, but that other map shows a 120V charger about 12km away at a golf course. I wonder if it's specifically for car charging, though. Even this far south in Minnesota, some places do have plug-ins for engine heaters in winter.
And Tesla's supercharger map: https://www.tesla.com/supercharger
I've found they tend to be out of the way or attached to shopping centers/big box stores/other places you wouldn't expect. It's rare to find a charging station with gas-station-like visibility, the numbers just aren't there yet I guess.