| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Prosperity Bank | Bank | 6 | $1.31B | 45.76% |
| 2 | Wells Fargo Bank, National Association | Bank | 3 | $479.8M | 16.76% |
| 3 | Texas Dow Employees Credit Union | Credit union | 3 | $379.8M* | 13.26% |
| 4 | Frost Bank | Bank | 1 | $162.9M | 5.69% |
| 5 | Cal-Com Federal Credit Union | Credit union | 2 | $131.5M* | 4.59% |
| 6 | NewFirst National Bank | Bank | 1 | $111.9M | 3.91% |
| 7 | TrustTexas Bank, SSB | Bank | 2 | $105.2M | 3.67% |
| 8 | The First State Bank | Bank | 1 | $38.4M | 1.34% |
| 9 | First National Bank in Port Lavaca | Bank | 1 | $29.6M | 1.03% |
| 10 | Crossroads Bank | Bank | 1 | $25.1M | 0.88% |
| 8 more institutions, year-over-year share and branch changes with Pro →$29/mo, cancel any time. | |||||
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $2.86B | 18 | 32 | Prosperity Bank | 45.8% | 2,638 |
| 2024 | $2.80B | 18 | 32 | Prosperity Bank | 45.2% | 2,639 |
| 2023 | $2.85B | 18 | 32 | Prosperity Bank | 44.3% | 2,585 |
| 2022 | $3.05B | 19 | 34 | Prosperity Bank | 45.7% | 2,691 |
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.