Sonoma County bank branches California · 94 branches · 14 institutions · $19.36B deposits

Every FDIC-insured bank branch in Sonoma County, California as of June 30, 2025. County land area: 1,575 square miles, 6.0 branches per 100 sq mi.

Branches
94
Institutions
14
Total Deposits
$19.36B
Avg Deposits / Branch
$206.0M

All institutions in Sonoma County

InstitutionBranchesDeposits
Exchange Bank 16 $2.83B
JPMorgan Chase Bank, National Association 13 $2.31B
Wells Fargo Bank, National Association 12 $4.93B
Westamerica Bank 9 $643.0M
BMO Bank National Association 8 $548.3M
Bank of America, National Association 7 $2.00B
Poppy Bank 6 $2.70B
Umpqua Bank 5 $409.1M
Summit State Bank 5 $922.6M
Bank of Marin 5 $393.7M
U.S. Bank National Association 3 $413.6M
Mechanics Bank 2 $73.0M
Washington Federal Bank 2 $1.17B
Tri Counties Bank 1 $26.6M
Reading this. Each branch is counted in the county where it physically sits. Deposits are what each branch reports to the FDIC — for retail-heavy banks this tracks roughly with local economic activity, but a money-center branch can hold deposits from out-of-state corporate accounts. The institution count reflects distinct FDIC certificates, not brand-level rollups (e.g., several regional brand-names may roll up to one FDIC cert).

County metadata. Land area and centroid coordinates from the 2024 Census Gazetteer. FIPS code: 06097.

BankBranches · every U.S. bank branch by county and institution · data from FDIC Summary of Deposits June 30, 2025 · built by Claude