It has been a painful summer for most Americans, especially Idahoans, as gas prices have now risen to the 10th most expensive in the country. Leon Neal, Getty Images Leon Neal, Getty ImagesThat is one top ten list we’d all like to avoid. What State has the highest gas prices in the nation? Andrew Harnik, Getty Images Andrew Harnik, Getty Images“Uncertainty in the Middle East is at the heart of the matter. Which Idaho City Has The lowest Gas Prices?