Marin County, California, a core county of the San Jose-San Francisco-Oakland, CA market, holds $14.9B in deposits across 18 insured institutions and 67 branches. Wells Fargo Bank, National Association is the largest deposit holder at 20.3% share. The top three banks hold 52% of deposits, which places the county in the Moderate band. Deposits have grown 0.5% since 2020 while the branch count fell by 21.2%. It produces $29.9B of output, ranking #158 of the 1,523 ranked counties by economic output.
Ranks show where the county stands among the 1,523 ranked counties (those within a Combined or Metropolitan Statistical Area that have a branch). They describe relative position, not a rating of market quality or suitability.
Deposit trend
Branches: 85 in 2020 to 67 in 2025. Institutions: 19 to 18. Top-three share: 56% to 52%.
Institutions by deposits
| Institution | Deposits | Share | 5‑yr deposits |
|---|---|---|---|
| Wells Fargo Bank | $3.0B | 20.3% | -24% |
| JPMorgan Chase Bank | $2.5B | 16.9% | -8% |
| Bank of America | $2.2B | 14.5% | -13% |
| Citizens Bank | $2.1B | 13.9% | no 2020 presence |
| Bank of Marin | $1.7B | 11.4% | -7% |
| Westamerica Bank | $802M | 5.4% | -27% |
| U.S. Bank | $556M | 3.7% | -17% |
| Citibank | $502M | 3.4% | -1% |
| Washington Federal Bank | $495M | 3.3% | no 2020 presence |
| Poppy Bank | $308M | 2.1% | +200% |
| Umpqua Bank | $176M | 1.2% | -26% |
| Heritage Bank of Commerce | $170M | 1.1% | +30% |
| BMO Bank | $139M | 0.9% | -41% |
| Mechanics Bank | $101M | 0.7% | +63% |
| First Federal Savings and Loan Association of San Rafael | $82M | 0.6% | +6% |
| The Northern Trust Company | $68M | 0.5% | +17% |
| EverBank | $46M | 0.3% | no 2020 presence |
| Exchange Bank | $0M | 0.0% | no 2020 presence |
The 18 insured institutions with a branch presence in this county, per the FDIC Summary of Deposits, June 30, 2025. Five-year change compares the same institution’s county deposits in 2020 and 2025. Institutions are tracked by FDIC certificate number, and where an institution acquired another bank, the acquired bank’s prior deposits are folded into the baseline so the change reflects the combined, continuing franchise rather than reading as new. “No 2020 presence” means neither the institution nor a bank it later absorbed reported deposits in this county that year. Deposit figures are nominal and are not adjusted for inflation.
Part of the San Jose-San Francisco-Oakland market
Marin County is one of 13 counties that make up the San Jose-San Francisco-Oakland, CA market, a Combined Statistical Area (ranked #3 of 293 U.S. markets by economic output). It produces 2.5% of the market’s output and holds 2.2% of its deposits.
| Measure | Marin County | Share of parent market |
|---|---|---|
| 2024 GDP | $29.9B | 2.5% |
| Deposits | $14.9B | 2.2% |
| Population | 253,694 | 2.8% |
View the full San Jose-San Francisco-Oakland market profile →
Recruiting in Marin County
Deposits are split among a moderate number of institutions. Who holds the deposits, and how contested the market is, shapes both the runway for growth and the competition you would be recruiting against. We recruit commercial relationship managers, banking teams, and market leaders for banks building in markets like Marin County.
See how we help banks recruit commercial banking talent