Best State to Charge an EV in 2026

Washington State has the cheapest residential electricity in the country at roughly $0.10/kWh, and combined with the highest gas prices on the West Coast ($4.30/gal), an EV driver there saves about $1,755/year compared to a 25 MPG gas car. Idaho, Oregon, and Utah are next — all benefit from cheap hydro or coal power that keeps electricity rates well below the national average.

Hawaii has the highest residential electricity rate in the US at roughly $0.40/kWh, more than four times the national average. California ($0.32), Connecticut ($0.30), Massachusetts ($0.28), and Rhode Island ($0.27) round out the top five. In these states the per-mile EV cost climbs, but they usually also have high gas prices so the savings gap stays meaningful.

California has the highest gas prices in the continental US, currently averaging about $4.80/gallon. Hawaii is the highest overall at around $4.50/gal, and the Pacific Northwest follows with Washington ($4.30), Oregon ($4.20), and Nevada ($4.05). These states benefit the most from EV adoption because the gap between gas and electric is widest.

Mississippi has the cheapest regular gas in the country at roughly $2.80/gal, followed by Alabama, Arkansas, Louisiana, and Oklahoma — all under $3.00. In these Gulf South states gas is so affordable that EV savings shrink to $400-$700/year, though they still beat gas on maintenance and tailpipe emissions.

Washington, Oregon, Utah, Idaho, and California are the top 5 states for EV savings. The pattern is clear: states with high gas prices AND low-to-moderate electricity rates offer the biggest financial incentive. Savings in these states range from $1,500 to $1,800 per year for a typical 12,000-mile driver.

Yes — even in the worst state for EV economics, you still come out ahead. Mississippi, the lowest-savings state, still saves about $400/year on fuel alone. Add typical EV maintenance savings ($200-$500/year) and the total annual benefit stays positive everywhere in the US. The variable is how much, not whether.

We use US Energy Information Administration (EIA) quarterly averages as our source. Actual rates vary by utility, time-of-use plan, and specific region within a state — for example, Pacific Power customers in rural Oregon may pay different rates than Portland General customers in the city. We recommend checking your local utility bill for your exact rate.

Slightly. West Virginia and Wyoming have the dirtiest grids in the US (over 1.20 lbs CO2/kWh from coal), so an EV there produces more lifetime CO2 than a clean-grid state like Washington (0.40 lbs CO2/kWh from hydro). However, even on the dirtiest US grid an EV still produces 30-40% less CO2 than a gas car over its lifetime. See the CO2 column in the table for your state.

Time-of-use (TOU) plans drop your effective electricity rate by 30-50% if you charge between 10pm and 6am. For example, a California driver paying the headline $0.32/kWh during the day can drop to $0.18-$0.22/kWh overnight — that pushes their annual savings from $1,200 to $1,700. Most utilities require a smart meter or separate EV meter to enroll.

Yes, though range drops 20-30% in sub-freezing temperatures so you charge more often. Minnesota and Vermont have moderate gas prices ($3.25-$3.45) and average-to-high electricity rates ($0.14-$0.21). The math still favors EVs by $700-$1,000/yr, and preconditioning the battery while plugged in (warming it from grid power before you leave) preserves range. Both states also offer cold-weather EV incentives that further tilt the math.