| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Banco Popular de Puerto Rico | Bank | 4 | $1.09B | 37.32% |
| 2 | FirstBank Puerto Rico | Bank | 3 | $767.7M | 26.31% |
| 3 | Pentagon Federal Credit Union | Credit union | 1 | $522.6M* | 17.91% |
| 4 | Merchants Commercial Bank | Bank | 1 | $319.2M | 10.94% |
| 5 | Oriental Bank | Bank | 1 | $183.9M | 6.30% |
| 6 | St. Thomas Federal Credit Union | Credit union | 1 | $35.1M* | 1.20% |
| 7 | Vitelco Employees Federal Credit Union | Credit union | 1 | $748K* | 0.03% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $2.92B | 7 | 12 | Banco Popular de Puerto Rico | 37.3% | 2,567 |
| 2025 | $2.45B | 6 | 11 | Banco Popular de Puerto Rico | 43.1% | 3,313 |
| 2024 | $2.43B | 6 | 11 | Banco Popular de Puerto Rico | 40.6% | 3,300 |
| 2023 | $2.53B | 6 | 12 | FirstBank Puerto Rico | 40.5% | 3,341 |
| 2022 | $2.93B | 6 | 12 | Banco Popular de Puerto Rico | 42.8% | 3,537 |
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