Frost Bank holds $42.2B in deposits across 26 counties in 10 ranked markets and 1 state. Its deposit footprint is concentrated: the top three counties (Bexar County, Tarrant County, Harris County) hold 57% of its deposits. It ranks among the three largest institutions in 9 of the 26 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. | Bexar County, TX | $11.4B | 27.0% | 6.9% | 32 |
| 2. | Tarrant County, TX | $6.6B | 15.8% | 10.7% | 25 |
| 3. | Harris County, TX | $6.2B | 14.6% | 2.1% | 47 |
| 4. | Travis County, TX | $3.7B | 8.8% | 7.3% | 17 |
| 5. | Dallas County, TX | $3.0B | 7.2% | 1.1% | 22 |
| 6. | Midland County, TX | $1.9B | 4.5% | 20.7% | 4 |
| 7. | Nueces County, TX | $1.6B | 3.7% | 23.4% | 7 |
| 8. | Hidalgo County, TX | $901M | 2.1% | 5.9% | 4 |
| 9. | Fort Bend County, TX | $823M | 2.0% | 4.2% | 6 |
| 10. | Kendall County, TX | $800M | 1.9% | 41.4% | 1 |
| 11. | Williamson County, TX | $726M | 1.7% | 5.7% | 4 |
| 12. | Comal County, TX | $656M | 1.6% | 19.7% | 1 |
| 13. | Hays County, TX | $583M | 1.4% | 17.0% | 4 |
| 14. | Collin County, TX | $500M | 1.2% | 1.2% | 11 |
| 15. | Ector County, TX | $397M | 0.9% | 10.3% | 3 |
| 16. | Montgomery County, TX | $395M | 0.9% | 2.2% | 3 |
| 17. | Galveston County, TX | $343M | 0.8% | 5.0% | 5 |
| 18. | Cameron County, TX | $297M | 0.7% | 4.7% | 2 |
| 19. | San Patricio County, TX | $289M | 0.7% | 32.5% | 1 |
| 20. | Brazoria County, TX | $278M | 0.7% | 4.6% | 2 |
| 21. | Guadalupe County, TX | $272M | 0.6% | 10.2% | 1 |
| 22. | Denton County, TX | $187M | 0.4% | 0.1% | 6 |
| 23. | Victoria County, TX | $163M | 0.4% | 6.9% | 1 |
| 24. | Brazos County, TX | $105M | 0.2% | 1.4% | 2 |
| 25. | Rockwall County, TX | $54M | 0.1% | 1.8% | 1 |
| 26. | Bastrop County, TX | $46M | 0.1% | 2.4% | 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.