Bank Branches › California › Sonoma County › 18615 Sonoma Highway, Suite 108
Full-service office · FDIC office no. 427065
Westamerica Bank
18615 Sonoma Highway, Suite 108, Sonoma, CA 95476
Last reported 2016
$13.0M
peak deposits
2004
established
—
rank in county
2
names on the sign
This office filed its last FDIC deposit report in 2016. It is missing from every report since, which usually means it closed. The FDIC record doesn't give a reason. Sonoma County has 92 offices open today, listed below.
| Date | Bank on the sign | Deposits | Change |
|---|---|---|---|
| Jun 30 2026 | NOT REPORTED missing from the 2026 report (and every year since 2017) | ||
| Jun 30 2016 | Westamerica Bank | $4.7M | −8% |
| Jun 30 2015 | Westamerica Bank | $5.1M | −6% |
| Jun 30 2014 | Westamerica Bank | $5.4M | +1% |
| Jun 30 2013 | Westamerica Bank | $5.3M | −19% |
| Jun 30 2012 | Westamerica Bank | $6.6M | −29% |
| Jun 30 2011 | Westamerica BankNEW NAME | $9.3M | −14% |
| Jun 30 2010 | Sonoma Valley Bank | $10.8M | −7% |
| Jun 30 2009 | Sonoma Valley Bank | $11.5M | 0% |
| Jun 30 2008 | Sonoma Valley Bank | $11.6M | −11% |
| Jun 30 2007 | Sonoma Valley Bank | $13.0M | +3% |
| Jun 30 2006 | Sonoma Valley Bank | $12.6M | +30% |
| Jun 30 2005 | Sonoma Valley Bank | $9.6M | +354% |
| Jun 30 2004 | Sonoma Valley Bank | $2.1M | |
Nearest open offices in Sonoma County
- 0.7 miMechanics Bank · 19245 Sonoma Highway, Sonoma
- 1.2 miWells Fargo Bank, National Association · 480 W Napa St, Sonoma
- 1.3 miExchange Bank · 435 W Napa St, Sonoma
- 1.4 miWestamerica Bank · 202 W Napa St, Sonoma
- 1.5 miBMO Bank National Association · 201 W Napa St, Sonoma
- 1.5 miBank of Marin · 136 W Napa St, Ste 100, Sonoma
- 1.6 miBank of America, National Association · 35 W Napa St, Sonoma
- 1.6 miJPMorgan Chase Bank, National Association · 501 Broadway, Sonoma
All banks in Sonoma County →
Every Westamerica Bank office →
What became of Westamerica Bank →
Names on the sign
2004–2010Sonoma Valley Bank2011–2016Westamerica Bank
The FDIC office number stays with the building when banks merge or rename, so the same office appears under each owner. Follow an earlier name to see what became of that bank.
Deposits are the balances the bank assigned to this office on June 30 of each year, in nominal dollars. Source: FDIC Summary of Deposits, office (UNINUMBR) 427065.