Banks in Sonoma, California
We list 9 bank branches in Sonoma from 9 FDIC-insured banks, in 1 ZIP code. The most branches belong to BMO Bank National Association (1), Mechanics Bank (1), Bank of Marin (1) and Westamerica Bank (1).
- 9branches
- 9banks
- 1ZIP codes
All bank branches in Sonoma
Showing 9 of 9
| Bank | Branch | Address | ZIP | Map |
|---|---|---|---|---|
| BMO Bank National Association | Sonoma Branch | 201 W Napa St | 95476 | Map |
| Mechanics Bank | Sonoma Branch | 19245 Sonoma Highway | 95476 | Map |
| Bank of Marin | Sonoma Branch | 136 W Napa St | 95476 | Map |
| Westamerica Bank | Sonoma Branch | 202 W Napa St | 95476 | Map |
| Bank of America, National Association | Sonoma Branch | 35 W Napa St | 95476 | Map |
| Wells Fargo Bank, National Association | Sonoma Branch | 480 W Napa St | 95476 | Map |
| JPMorgan Chase Bank, National Association | Sonoma Branch | 501 Broadway | 95476 | Map |
| U.S. Bank National Association | Sonoma Branch | 500 Broadway | 95476 | Map |
| Exchange Bank | Sonoma Branch | 435 W Napa St | 95476 | Map |
Source: FDIC BankFind Suite, retrieved 2026-09-20. Hours and phone numbers are not part of this data: check the bank’s website before you visit.
Frequently asked questions
How many banks are in Sonoma, CA?
Our list has 9 banks with 9 branches in Sonoma. Branches open and close, so confirm with the bank.
Which bank has the most branches in Sonoma?
In our list it is BMO Bank National Association, with 1 branches.
How do I contact a branch?
The FDIC data has no phone numbers. Open the bank’s official website from its profile page here, or use the number on your card or statement.