Banks in Sonoma County, California
FDIC-insured institutions in Sonoma County held $19.7 billion in deposits as of June 30, 2026, according to the FDIC.
14 FDIC-insured institutions held $19.7 billion in deposits in 92 offices in Sonoma County at June 30, 2026; Wells Fargo Bank, National Association held the most, 24.5% of the county's.
Sonoma County, June 30, 2026
- $19.7 billion
- Deposits in the county
- $19,680,623,000
- At June 30, 2026, against $19.4 billion a year before, each year's own dollars.
- 14
- Institutions with deposits
- FDIC-insured banks and savings institutions with an office here that reported deposits.
- 92
- Offices
- Every office the survey lists here, against 94 in 2025.
- 24.5%
- The largest share
- Wells Fargo Bank, National Association, with $4.8 billion in 11 offices.
Each institution’s share of the county’s deposits
3 more columns on a wider screen
| Institution | Deposits | Share |
|---|---|---|
| Wells Fargo Bank, National Association | $4.8 billion | 24.5% |
| Poppy Bank | $3.5 billion | 17.8% |
| Exchange Bank | $2.7 billion | 13.8% |
| JPMorgan Chase Bank, National Association | $2.3 billion | 11.8% |
| Bank of America, National Association | $2.0 billion | 9.9% |
| WaFd Bank | $1.1 billion | 5.6% |
| Summit State Bank | $846.1 million | 4.3% |
| Westamerica Bank | $650.8 million | 3.3% |
| BMO Bank National Association | $527.8 million | 2.7% |
| U.S. Bank National Association | $397.8 million | 2.0% |
| Columbia Bank | $372.4 million | 1.9% |
| Bank of Marin | $355.1 million | 1.8% |
| Mechanics Bank | $71.4 million | 0.4% |
| Tri Counties Bank | $36.0 million | 0.2% |
An institution with no office in the county in 2025 shows none for that year; a name is the survey’s for 2026, and one without a link has no page because it did not file a Call Report for the newest quarter.
Sources
- FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey — Federal Deposit Insurance Corporation · Public domain — U.S. Government work · retrieved September 27, 2026
Compiled automatically from FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey by a checked SQL query · Editor: Kian O'Connor · How this site is built
Data retrieved