Bay Area gas prices are mostly down a few cents this week compared to last, according to the latest numbers. The lowest average price can be found in Solano County ($6.10), while the highest is in neighboring Napa County ($6.38). The average in Santa Clara County is sitting at $6.13. San Francisc o’s average is $6.36. Contra Costa County is the only local county where the average price held steady compared to last week. The national average is above $4.50, which is 50% higher than when the war in Iran started. ...read more read less