| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | First National Bank in Port Lavaca | Bank | 3 | $266.3M | 38.23% |
| 2 | Texas Dow Employees Credit Union | Credit union | 1 | $118.9M* | 17.07% |
| 3 | International Bank of Commerce | Bank | 1 | $90.6M | 13.00% |
| 4 | Wells Fargo Bank, National Association | Bank | 1 | $73.4M | 10.54% |
| 5 | Prosperity Bank | Bank | 1 | $71.9M | 10.33% |
| 6 | Cal-Com Federal Credit Union | Credit union | 1 | $66.1M* | 9.49% |
| 7 | Woodforest National Bank | Bank | 1 | $5.2M | 0.74% |
| 8 | First National Bank Texas | Bank | 1 | $4.2M | 0.60% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $696.6M | 8 | 10 | First National Bank in Port Lavaca | 38.2% | 2,231 |
| 2025 | $693.1M | 8 | 10 | First National Bank in Port Lavaca | 39.1% | 2,297 |
| 2024 | $804.6M | 8 | 11 | First National Bank in Port Lavaca | 34.7% | 2,325 |
| 2023 | $832.2M | 8 | 11 | First National Bank in Port Lavaca | 35.6% | 2,363 |
| 2022 | $795.5M | 8 | 10 | First National Bank in Port Lavaca | 41.5% | 2,417 |
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