The cheapest states to get gas, ranked

Getty/Justin Sullivan

Many of the cheapest states to gas up are in the South and Midwest.

• The average price of gas in the US is $2.662, but many states fall below the national average.
• The five cheapest states to get gas were Alabama, Arkansas, South Carolina, Mississippi, and Louisiana.
• Here are the cheapest states to get gas, ranked in order of lowest average price for regular gas to highest.
• Visit Business Insider's homepage for more stories.

When it comes to putting gas in your vehicle, you may have to cross state lines to get the best price.

AAA keeps track of the average price of regular, mid-grade, premium, and diesel gas in all 50 states. The averages are updated daily, so you can always know whether you're scoring the best possible deal in your state.

Read more: The cheapest gas station chain in every state

As of October 2, 2019, the national average price of gas in the US is $2.662. Many states across America, however, have average prices much lower than the national average.

To find the cheapest states to get gas, Business Insider looked at the average prices to get regular gas in states that fell below the national average. We also included the prices for mid-grade, premium, and diesel gas in those states.

Here are the cheapest states to get gas, listed in order of highest average price for regular gas to lowest.