Indiana, In. – The average price of gasoline in Indiana was $3.05 earlier this week which is 10.9 cents less than last week 21 cents per gallon lower than a month ago and 56.5 cents cheaper than a year ago. The GasBuddy website reports that gas prices in the state range from $2.61 to $3.69. The national average price of gasoline rose to $3.10 per gallon in the last week