Tesla Motors

Yes, you too can impress friends at cocktail parties by knowing that the last state to go without a registered Tesla Model S battery-electric sedan was indeed Mississippi. And the second-to-last one was West Virginia. That's what Edmunds is saying, citing data from Polk.

Mississippi was the final hold-out until one intrepid Jackson resident made the Model S plunge. The state's non-Tesla stature wasn't a surprise, given that Mississippi has the lowest percentage of plug-in vehicles in the country (on the flip side, Washington, Hawaii and California are there three most plug-in prevalent states by percentage of registrations). Another fun cocktail party fact: more than 20 percent of Mississippi's registered vehicles are trucks.

Tesla took about a year and a half to finally register a vehicle all 50 states. Comparatively, the Nissan Leaf took almost two years to be registered in all states, while the Chevrolet Volt extended-range plug-in took just 11 months. Tesla sold about 22,300 Model S vehicles last year, and the approximately 6,900 units sold during the fourth quarter made it the country's best-selling plug in during that time.

The bad news is that our Mississippi Tesla owner can't count on getting free electric charging from Tesla any time soon. The nearest Superchargers are in Texas and Florida, two states away.