Which state has the cheapest gas?
The current state with the lowest gas is Wyoming as a whole at $3.61. If you wanted to go by city only, then it would be Tucson, AZ with a price of $3.60. http://gasbuddy.com/ is where you can find the current figures.
The cheapest gas in the US can currently be found in Laredo, TX, at $2.59 a gallon. The state with the lowest average gas price is currently Colorado, with prices averaging $2.67 a gallon