In 2019 the average annual gasoline price by region ranged from a low of $2.35/gallon in the Gulf Coast to a high of $3.43/gallon in the West Coast region, which includes California. The higher average price there is likely influenced by California’s use of cleaner, reformulated gasoline.
Note: Regions are defined as the Petroleum Administration for Defense Districts (PADDs) and contain the following states.
Gulf Coast - Alabama, Arkansas, Louisiana, Mississippi, New Mexico, Texas
Lower Atlantic - Florida, Georgia, North Carolina, South Carolina, Virginia, West Virginia
Midwest - Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, Ohio, Oklahoma, Tennessee, Wisconsin
New England - Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
Central Atlantic - Delaware, District of Columbia, Maryland, New Jersey, New York, Pennsylvania
Rocky Mountain - Colorado Idaho, Montana, Utah, Wyoming
West Coast - Alaska, Arizona, California, Hawaii, Nevada, Oregon, Washington
Source: U.S. Energy Information Administration, Weekly Retail Gasoline and Diesel Prices.