| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Bank of America, National Association | Bank | 20 | $5.49B | 15.93% |
| 2 | JPMorgan Chase Bank, National Association | Bank | 26 | $5.06B | 14.67% |
| 3 | Wells Fargo Bank, National Association | Bank | 16 | $3.67B | 10.63% |
| 4 | Citibank, National Association | Bank | 10 | $3.30B | 9.58% |
| 5 | Manufacturers and Traders Trust Company | Bank | 22 | $2.61B | 7.58% |
| 6 | Bankwell Bank | Bank | 6 | $2.19B | 6.35% |
| 7 | Union Savings Bank | Bank | 15 | $1.77B | 5.12% |
| 8 | First County Bank | Bank | 12 | $1.63B | 4.72% |
| 9 | Fairfield County Bank | Bank | 14 | $1.15B | 3.34% |
| 10 | Ives Bank | Bank | 13 | $1.13B | 3.28% |
| 31 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 | $34.49B | 41 | 227 | Bank of America, National Association | 15.9% | 875 |
| 2024 | $34.24B | 24 | 204 | Bank of America, National Association | 19.2% | 983 |
| 2023 | $29.59B | 23 | 173 | JPMorgan Chase Bank, National Association | 20.2% | 1,095 |
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.