Georgia's county-by-county average retail price for regular unleaded as of Wednesday Aug. 3. Gas averaged $3.72 per gallon in the state while the national average for a gallon of regular unleaded was $4.16. The average price in Georgia has fallen roughly 66 cents since June 29, when the average price per gallon in the state was $4.38. The average price of regular unleaded in Georgia was $3.84 a week ago, $4.32 a month ago, and $2.97 one year ago, according to AAA. Darker counties show the highest average price. No data was available from Echols County.