Westamerica Bank Address: 9470 Main St, Upper Lake, CA 95485 Phone: (707) 275-8170 Banks Other Businesses: The Lodge At Blue Lakes at 5135 W Highway 20, Upper Lake, CA 95485 Lodge At Blue Lakes The at 5135 W Hwy 20, Upper Lake, CA 95485 Pine Acres Resort at 5328 Blue Lakes Rd, Upper Lake, CA 95485 Le Trianon Resort at 5845 W Highway 20, Upper Lake, CA 95485