Thanks to Uncle Sam, the states and some local governments, gasoline taxes typically raise the price of a gallon of gas by nearly 50 cents.

According to the American Petroleum institute, Americans pay an average of 48.8 cents per gallon in taxes. The federal gas tax is 18.4 cents per gallon, while states set their own gas taxes.

How much does your state charge? Check out our interactive map to find out.

Click on a state to see its state, federal and combined gasoline taxes. The darker the red, the higher that state’s gas taxes are.

People in North Carolina pay the highest in state and federal gas taxes, at 57.55 cents per gallon. Georgians pay the lowest, at 25.9 cents per gallon.

County and/or city gas taxes also get tacked on to the price in some places.

Map data sources: Alabama Department of Revenue, Alaska Tax Division 2011 Annual Report, Arizona Department of Transportation, Arkansas Department of Finance and Administration, California State Board of Equalization, Delaware Department of Finance, Florida Department of Revenue, Illinois Department of Revenue, Hawaii Department of Taxation, Michigan State Attorney’s Office, New York State Department of Taxation and Finance, and the American Road and Transportation Builders Association.