Prosperity Bank holds $27.8B in deposits across 90 counties in 18 ranked markets and 2 states. Its deposit footprint is broadly distributed: the top three counties (Harris County, Collin County, Dallas County) hold 29% of its deposits, and Texas accounts for 95% of the total. It ranks among the three largest institutions in 37 of the 90 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. | Harris County, TX | $3.3B | 11.8% | 1.1% | 33 |
| 2. | Collin County, TX | $3.1B | 11.1% | 7.7% | 16 |
| 3. | Dallas County, TX | $1.6B | 5.7% | 0.6% | 24 |
| 4. | Lubbock County, TX | $1.3B | 4.6% | 10.8% | 18 |
| 5. | Victoria County, TX | $1.3B | 4.5% | 53.1% | 5 |
| 6. | Fort Bend County, TX | $1.1B | 3.8% | 5.4% | 9 |
| 7. | Ector County, TX | $1.0B | 3.7% | 26.9% | 4 |
| 8. | Midland County, TX | $1.0B | 3.7% | 11.1% | 5 |
| 9. | Brazos County, TX | $980M | 3.5% | 13.0% | 10 |
| 10. | Tulsa County, OK | $895M | 3.2% | 2.7% | 9 |
| 11. | Wharton County, TX | $770M | 2.8% | 46.8% | 3 |
| 12. | Travis County, TX | $762M | 2.7% | 1.5% | 9 |
| 13. | Oklahoma County, OK | $541M | 1.9% | 1.2% | 8 |
| 14. | Howard County, TX | $533M | 1.9% | 38.0% | 2 |
| 15. | Nueces County, TX | $462M | 1.7% | 7.0% | 8 |
| 16. | Liberty County, TX | $443M | 1.6% | 31.7% | 3 |
| 17. | Tarrant County, TX | $414M | 1.5% | 0.7% | 11 |
| 18. | Ellis County, TX | $411M | 1.5% | 10.9% | 3 |
| 19. | Taylor County, TX | $331M | 1.2% | 7.3% | 7 |
| 20. | Matagorda County, TX | $326M | 1.2% | 62.0% | 2 |
| 21. | Henderson County, TX | $313M | 1.1% | 20.0% | 5 |
| 22. | Denton County, TX | $279M | 1.0% | 0.1% | 5 |
| 23. | Wichita County, TX | $271M | 1.0% | 6.6% | 4 |
| 24. | Montgomery County, TX | $267M | 1.0% | 1.5% | 5 |
| 25. | Comal County, TX | $256M | 0.9% | 7.7% | 4 |
| 26. | Bastrop County, TX | $248M | 0.9% | 12.6% | 4 |
| 27. | San Patricio County, TX | $224M | 0.8% | 25.2% | 5 |
| 28. | Williamson County, TX | $203M | 0.7% | 1.6% | 4 |
| 29. | De Witt County, TX | $194M | 0.7% | 11.7% | 3 |
| 30. | Bee County, TX | $187M | 0.7% | 45.4% | 1 |
| 31. | Brazoria County, TX | $186M | 0.7% | 3.1% | 3 |
| 32. | Aransas County, TX | $177M | 0.6% | 38.5% | 1 |
| 33. | Terry County, TX | $177M | 0.6% | 82.3% | 1 |
| 34. | Walker County, TX | $174M | 0.6% | 16.2% | 2 |
| 35. | Fayette County, TX | $165M | 0.6% | 8.3% | 3 |
| 36. | Waller County, TX | $165M | 0.6% | 47.8% | 1 |
| 37. | Madison County, TX | $164M | 0.6% | 66.4% | 1 |
| 38. | Houston County, TX | $148M | 0.5% | 33.0% | 2 |
| 39. | Navarro County, TX | $143M | 0.5% | 13.2% | 3 |
| 40. | Cooke County, TX | $140M | 0.5% | 9.9% | 2 |
| 41. | Galveston County, TX | $140M | 0.5% | 2.0% | 2 |
| 42. | Llano County, TX | $137M | 0.5% | 14.7% | 2 |
| 43. | Jackson County, TX | $129M | 0.5% | 39.1% | 1 |
| 44. | Parker County, TX | $126M | 0.5% | 3.2% | 2 |
| 45. | Chambers County, TX | $124M | 0.4% | 20.4% | 2 |
| 46. | Burleson County, TX | $123M | 0.4% | 18.8% | 1 |
| 47. | Eastland County, TX | $116M | 0.4% | 19.4% | 2 |
| 48. | Hale County, TX | $111M | 0.4% | 15.0% | 1 |
| 49. | Robertson County, TX | $107M | 0.4% | 20.5% | 1 |
| 50. | Gonzales County, TX | $104M | 0.4% | 15.4% | 1 |
| 51. | Scurry County, TX | $100M | 0.4% | 18.3% | 1 |
| 52. | Anderson County, TX | $100M | 0.4% | 12.4% | 1 |
| 53. | Grimes County, TX | $93M | 0.3% | 17.8% | 1 |
| 54. | Atascosa County, TX | $92M | 0.3% | 12.9% | 1 |
| 55. | Smith County, TX | $87M | 0.3% | 0.9% | 3 |
| 56. | Jim Wells County, TX | $86M | 0.3% | 15.0% | 1 |
| 57. | Bexar County, TX | $84M | 0.3% | 0.1% | 1 |
| 58. | Lee County, TX | $71M | 0.3% | 9.3% | 2 |
| 59. | Jefferson County, TX | $70M | 0.3% | 1.2% | 3 |
| 60. | Hockley County, TX | $68M | 0.2% | 10.3% | 1 |
| 61. | Brown County, TX | $67M | 0.2% | 8.5% | 2 |
| 62. | Upshur County, TX | $62M | 0.2% | 5.1% | 1 |
| 63. | Calhoun County, TX | $62M | 0.2% | 12.3% | 1 |
| 64. | Jack County, TX | $62M | 0.2% | 23.2% | 1 |
| 65. | Randall County, TX | $61M | 0.2% | 2.0% | 2 |
| 66. | Goliad County, TX | $56M | 0.2% | 30.6% | 1 |
| 67. | Gregg County, TX | $51M | 0.2% | 1.1% | 1 |
| 68. | Clay County, TX | $49M | 0.2% | 41.8% | 2 |
| 69. | Panola County, TX | $48M | 0.2% | 7.0% | 1 |
| 70. | Cherokee County, TX | $48M | 0.2% | 4.5% | 2 |
| 71. | Van Zandt County, TX | $47M | 0.2% | 4.3% | 1 |
| 72. | Hays County, TX | $43M | 0.2% | 1.3% | 1 |
| 73. | Freestone County, TX | $42M | 0.1% | 13.3% | 2 |
| 74. | Somervell County, TX | $42M | 0.1% | 10.0% | 1 |
| 75. | Burnet County, TX | $41M | 0.1% | 2.7% | 1 |
| 76. | Lavaca County, TX | $39M | 0.1% | 4.0% | 1 |
| 77. | Hood County, TX | $36M | 0.1% | 2.0% | 1 |
| 78. | Tom Green County, TX | $34M | 0.1% | 1.1% | 2 |
| 79. | Comanche County, TX | $34M | 0.1% | 7.7% | 1 |
| 80. | Floyd County, TX | $32M | 0.1% | 15.7% | 1 |
| 81. | Colorado County, TX | $31M | 0.1% | 4.0% | 1 |
| 82. | Cleveland County, OK | $30M | 0.1% | 0.5% | 1 |
| 83. | Guadalupe County, TX | $29M | 0.1% | 1.1% | 1 |
| 84. | Kleberg County, TX | $28M | 0.1% | 5.1% | 1 |
| 85. | Wise County, TX | $23M | 0.1% | 1.5% | 1 |
| 86. | Gillespie County, TX | $22M | 0.1% | 1.4% | 1 |
| 87. | Wood County, TX | $21M | 0.1% | 1.8% | 1 |
| 88. | Franklin County, TX | $20M | 0.1% | 7.0% | 1 |
| 89. | Lamb County, TX | $19M | 0.1% | 5.1% | 1 |
| 90. | Milam County, TX | $19M | 0.1% | 3.0% | 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.