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In 2016, there were six states with more than two plug-in vehicles (PEVs) registered per 1,000 people. California had the highest concentration of PEVs with 6.65 PEVs per 1,000 people. Hawaii had the second highest concentration with nearly four PEVs per 1,000 people followed by Washington and Oregon with about three PEVs per 1,000 people. Vermont and Georgia round out the top six with over two PEVs per 1,000 people. Mississippi had the lowest concentration of PEVs, but all 50 states and the District of Columbia had at least some PEVs. PEV registrations within a state are influenced by many factors, including state and local incentive programs, charging infrastructure, and fuel pricing.

PEV Registrations per 1,000 People by State, 2016

Map of the US showing PEV registrations per 1,000 people in each state.

Note: For a list of state laws and incentives, please visit the Alternative Fuels Data Center website.


PEV registrations – U.S. Department of Energy analysis, IHS/R.L. Polk, Population Profile, September 2017.

Population – U.S. Census Bureau, Population Estimates, Annual Estimates of the Resident Population.

Fact #1004 Dataset

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