| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Mechanics Bank | Bank | 4 | $376.8M | 30.94% |
| 2 | Tri Counties Bank | Bank | 3 | $229.7M | 18.86% |
| 3 | JPMorgan Chase Bank, National Association | Bank | 2 | $189.5M | 15.56% |
| 4 | Banner Bank | Bank | 3 | $159.9M | 13.13% |
| 5 | Siskiyou Credit Union | Credit union | 2 | $133.6M* | 10.97% |
| 6 | U.S. Bank National Association | Bank | 1 | $85.0M | 6.98% |
| 7 | Columbia Bank | Bank | 1 | $43.3M | 3.55% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $1.22B | 7 | 16 | Mechanics Bank | 30.9% | 1,909 |
| 2025 | $1.20B | 7 | 15 | Mechanics Bank | 30.6% | 1,895 |
| 2024 | $1.15B | 7 | 16 | Mechanics Bank | 29.4% | 1,855 |
| 2023 | $1.12B | 7 | 16 | Mechanics Bank | 28.6% | 1,830 |
| 2022 | $1.11B | 7 | 16 | Mechanics Bank | 28.8% | 1,837 |
Every institution above links to its profile — ratios, peer medians and this quarter’s change signals. Pro adds the full table, share movement and CSV export.