Mechanics Bank holds $14.0B in deposits across 34 counties in 14 ranked markets and 1 state. Its deposit footprint is concentrated: the top three counties (Contra Costa County, San Luis Obispo County, Orange County) hold 41% of its deposits. It ranks among the three largest institutions in 3 of the 34 counties where it operates.
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Data as of June 30, 2025 (FDIC Summary of Deposits)
| County | Deposits | County’s % of Bank’s Deposits | Bank’s % of County Deposits | Branches | |
|---|---|---|---|---|---|
| 1. | Contra Costa County, CA | $2.9B | 20.8% | 5.6% | 15 |
| 2. | San Luis Obispo County, CA | $1.5B | 10.4% | 16.9% | 12 |
| 3. | Orange County, CA | $1.3B | 9.5% | 0.8% | 1 |
| 4. | Santa Barbara County, CA | $1.1B | 7.8% | 7.7% | 12 |
| 5. | Monterey County, CA | $1.0B | 7.4% | 8.9% | 9 |
| 6. | Ventura County, CA | $829M | 5.9% | 3.5% | 7 |
| 7. | Alameda County, CA | $670M | 4.8% | 1.0% | 4 |
| 8. | Imperial County, CA | $621M | 4.4% | 24.5% | 3 |
| 9. | Riverside County, CA | $405M | 2.9% | 1.0% | 5 |
| 10. | Kern County, CA | $382M | 2.7% | 3.4% | 4 |
| 11. | Placer County, CA | $368M | 2.6% | 2.7% | 1 |
| 12. | Siskiyou County, CA | $368M | 2.6% | 34.4% | 4 |
| 13. | Butte County, CA | $342M | 2.4% | 5.4% | 4 |
| 14. | Merced County, CA | $332M | 2.4% | 10.0% | 3 |
| 15. | Tulare County, CA | $332M | 2.4% | 4.5% | 3 |
| 16. | Napa County, CA | $210M | 1.5% | 4.9% | 2 |
| 17. | Fresno County, CA | $185M | 1.3% | 1.0% | 2 |
| 18. | Stanislaus County, CA | $133M | 0.9% | 1.2% | 3 |
| 19. | Kings County, CA | $106M | 0.8% | 6.7% | 1 |
| 20. | Marin County, CA | $101M | 0.7% | 0.7% | 1 |
| 21. | Santa Cruz County, CA | $92M | 0.7% | 1.2% | 1 |
| 22. | Sutter County, CA | $90M | 0.6% | 3.2% | 1 |
| 23. | San Benito County, CA | $81M | 0.6% | 6.9% | 1 |
| 24. | Sonoma County, CA | $73M | 0.5% | 0.4% | 2 |
| 25. | Tehama County, CA | $72M | 0.5% | 7.1% | 2 |
| 26. | San Francisco County, CA | $72M | 0.5% | 0.0% | 1 |
| 27. | El Dorado County, CA | $68M | 0.5% | 1.7% | 1 |
| 28. | San Joaquin County, CA | $49M | 0.4% | 0.3% | 1 |
| 29. | Calaveras County, CA | $48M | 0.3% | 6.6% | 1 |
| 30. | Tuolumne County, CA | $44M | 0.3% | 3.0% | 1 |
| 31. | Santa Clara County, CA | $33M | 0.2% | 0.0% | 1 |
| 32. | Shasta County, CA | $30M | 0.2% | 0.7% | 1 |
| 33. | Los Angeles County, CA | $13M | 0.1% | 0.0% | 1 |
| 34. | San Diego County, CA | $3M | 0.0% | 0.0% | 1 |
Deposits are as reported to the FDIC at branch level, June 30, 2025, and are nominal. “County’s % of Bank’s Deposits” is this county’s share of the institution’s total deposits; “Bank’s % of County Deposits” is this institution’s deposits as a percent of all deposits booked in that county. Counties within a Combined or Metropolitan Statistical Area link to their full profile; other counties are shown for completeness.
All 293 markets and the 1,533 counties within a CSA or MSA are covered in the Market Intelligence resource. See the methodology for how each figure is built and when to expect updates.