The average gas price in Sonoma County is back to within a few cents of five dollars. The average price of a gallon of regular gas briefly hit five-dollars one week ago. It’s at $4.96 today, as it was Monday. Sonoma County has one of the highest averages in the North Bay. Among five counties, only Napa County is higher at $4.98 per gallon. The cheapest gas is at the Valero at Coddingtown where a gallon of unleaded is $4.59.
