The average cost of gas in Westmoreland County is above the $3.10 gallon mark, according to Gasbuddy.com.
On average, the cost of a gallon of regular, unleaded gas in Westmoreland County is $3.11 a gallon. In surrounding counties, the cheapest average gas price is Fayette County at $3.01 a gallon, with the highest average belonging to Allegheny County at $3.17 a gallon.
The statewide average is $3.02 a gallon.
