Gas in the Charleston-North Charleston area is down 19¢ from last week, now averaging $3.78 a gallon. Filling a 15-gallon tank in the Charleston-North Charleston area costs about $16 more than a year ago. It is $3.78 a gallon, $1.08 more than a year ago. Filling a 15-gallon tank costs about $16 more. It is $3.78 a gallon, down 19¢ from last week but still $1.08 above a year ago. Prices are AAA's daily averages for regular gas, last updated October 20.

Local Gas Prices Charleston, SC Loading...