Santander Bank holds $79.5B in deposits across 56 counties in 9 ranked markets and 9 states. Its deposit footprint is broadly distributed: the top three counties (Suffolk County, Berks County, Kings County) hold 39% of its deposits, and Massachusetts accounts for 42% of the total. It ranks among the three largest institutions in 4 of the 56 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. | Suffolk County, MA | $20.5B | 25.8% | 5.8% | 23 |
| 2. | Berks County, PA | $5.9B | 7.4% | 27.7% | 6 |
| 3. | Kings County, NY | $4.7B | 6.0% | 6.9% | 17 |
| 4. | Philadelphia County, PA | $4.1B | 5.2% | 5.6% | 12 |
| 5. | Middlesex County, MA | $3.4B | 4.3% | 4.1% | 31 |
| 6. | Monmouth County, NJ | $3.3B | 4.1% | 11.0% | 15 |
| 7. | Richmond County, NY | $2.8B | 3.5% | 15.2% | 14 |
| 8. | Ocean County, NJ | $2.2B | 2.8% | 9.3% | 13 |
| 9. | Essex County, MA | $2.0B | 2.5% | 6.4% | 17 |
| 10. | Providence County, RI | $2.0B | 2.5% | 6.7% | 14 |
| 11. | Norfolk County, MA | $1.8B | 2.3% | 5.1% | 15 |
| 12. | New York County, NY | $1.8B | 2.3% | 0.1% | 10 |
| 13. | Worcester County, MA | $1.8B | 2.2% | 7.5% | 13 |
| 14. | Capitol County, CT | $1.7B | 2.1% | 3.3% | 11 |
| 15. | Middlesex County, NJ | $1.7B | 2.1% | 3.3% | 13 |
| 16. | Bristol County, MA | $1.6B | 2.0% | 9.7% | 10 |
| 17. | Essex County, NJ | $1.4B | 1.7% | 4.8% | 12 |
| 18. | Union County, NJ | $1.3B | 1.6% | 5.2% | 9 |
| 19. | Plymouth County, MA | $1.2B | 1.6% | 6.5% | 10 |
| 20. | Queens County, NY | $1.2B | 1.5% | 1.5% | 10 |
| 21. | Hudson County, NJ | $1.2B | 1.5% | 2.4% | 5 |
| 22. | Delaware County, PA | $1.1B | 1.4% | 7.0% | 10 |
| 23. | Montgomery County, PA | $1.1B | 1.3% | 2.7% | 11 |
| 24. | Mercer County, NJ | $905M | 1.1% | 4.2% | 9 |
| 25. | Bucks County, PA | $839M | 1.1% | 3.3% | 8 |
| 26. | Rockingham County, NH | $683M | 0.9% | 5.5% | 6 |
| 27. | Morris County, NJ | $542M | 0.7% | 2.0% | 5 |
| 28. | Barnstable County, MA | $529M | 0.7% | 4.6% | 6 |
| 29. | Hillsborough County, NH | $498M | 0.6% | 3.3% | 4 |
| 30. | York County, PA | $460M | 0.6% | 4.8% | 5 |
| 31. | Nassau County, NY | $453M | 0.6% | 0.5% | 5 |
| 32. | Lehigh County, PA | $437M | 0.5% | 4.2% | 5 |
| 33. | Kent County, RI | $390M | 0.5% | 6.8% | 3 |
| 34. | Bergen County, NJ | $385M | 0.5% | 0.6% | 3 |
| 35. | Cumberland County, PA | $382M | 0.5% | 3.3% | 4 |
| 36. | Chester County, PA | $306M | 0.4% | 1.9% | 3 |
| 37. | Lancaster County, PA | $291M | 0.4% | 1.6% | 3 |
| 38. | Schuylkill County, PA | $266M | 0.3% | 9.6% | 1 |
| 39. | Camden County, NJ | $250M | 0.3% | 1.7% | 2 |
| 40. | Northampton County, PA | $242M | 0.3% | 3.2% | 2 |
| 41. | Naugatuck Valley County, CT | $193M | 0.2% | 1.5% | 2 |
| 42. | Dauphin County, PA | $193M | 0.2% | 2.5% | 3 |
| 43. | Somerset County, NJ | $188M | 0.2% | 1.1% | 2 |
| 44. | Miami-Dade County, FL | $176M | 0.2% | 0.1% | 2 |
| 45. | Sussex County, NJ | $158M | 0.2% | 3.5% | 1 |
| 46. | Burlington County, NJ | $144M | 0.2% | 1.0% | 2 |
| 47. | Bristol County, RI | $128M | 0.2% | 7.6% | 1 |
| 48. | Merrimack County, NH | $118M | 0.1% | 1.9% | 1 |
| 49. | Dukes County, MA | $114M | 0.1% | 8.3% | 1 |
| 50. | Bronx County, NY | $111M | 0.1% | 0.6% | 4 |
| 51. | Washington County, RI | $103M | 0.1% | 1.9% | 1 |
| 52. | Hampden County, MA | $95M | 0.1% | 0.7% | 1 |
| 53. | Newport County, RI | $75M | 0.1% | 2.8% | 1 |
| 54. | Lebanon County, PA | $60M | 0.1% | 1.9% | 1 |
| 55. | Suffolk County, NY | $48M | 0.1% | 0.1% | 1 |
| 56. | New Castle County, DE | $24M | 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.