Tesla's flagship Model S is now registered in every state, according to a report by Edmunds, which cited Polk registration analysis.

Mississippi was the last place to have record a Model S registration. Mississippi confirmed its only Model S registration took place last November.

It took approximately 18 months for every state to have at least one Tesla Model S vehicle.

"It was no surprise that Mississippians weren't rushing to acquire a Model S since the state has the smallest market share of EVs in the nation," said Jessica Caldwell, senior director of pricing & industry analysis for Edmunds.

"They prefer large trucks which are the most popular segment in the state, comprising over 20 percent of new-vehicle registrations in 2013," Caldwell added.

West Virginia was the second to last state to confirm a Model S registration, which took place in April 2013, according to the Polk analysis.

California leads all Tesla ownership, as over 48 percent of all Model S registrations have occurred in the state.

California is behind Washington and Hawaii in "electric-vehicle market share" however, according to Edmunds.

It took Nissan 23 months to cover the U.S. with its electric Nissan Leaf, and 11 months for the Chevrolet Volt plug-in hybrid electric to cover the whole country, according to Polk.

The Nissan Leaf and Chevy Volt are considered to be among the Model S' biggest competitors currently.

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