The average gas price in Sonoma County is inching up a bit but still remains below five dollars per gallon. Today’s average is $4.88 for a gallon of regular gas. That’s three cents higher than last Monday. Mendocino County still has the most expensive gas in the North Bay, at $4.94 per gallon. The statewide average is $4.61 while the national average is $3.35.
