Nevada gas prices are the third-highest in the nation. While Nevada’s average gasoline price is down 13 cents since last month, according to AAA’s fuel gauge report, Nevada’s average gasoline price registered at $2.44 per gallon for unleaded regular. Reno has the highest gasoline price in the state, with a cost of $2.65 per gallon for unleaded regular, while Carson City has the lowest, at $2.31 a gallon. The national average price for regular unleaded gasoline is $2.12 per gallon.