| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Manufacturers and Traders Trust Company | Bank | 39 | $9.44B | 19.66% |
| 2 | Bank of America, National Association | Bank | 26 | $7.11B | 14.79% |
| 3 | JPMorgan Chase Bank, National Association | Bank | 35 | $6.57B | 13.68% |
| 4 | Wells Fargo Bank, National Association | Bank | 18 | $4.01B | 8.34% |
| 5 | Citibank, National Association | Bank | 12 | $3.65B | 7.60% |
| 6 | Bankwell Bank | Bank | 8 | $2.47B | 5.14% |
| 7 | Union Savings Bank | Bank | 16 | $1.83B | 3.82% |
| 8 | TD Bank, National Association | Bank | 12 | $1.77B | 3.68% |
| 9 | First County Bank | Bank | 13 | $1.76B | 3.65% |
| 10 | Fairfield County Bank | Bank | 17 | $1.43B | 2.98% |
| 42 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 | $48.03B | 52 | 303 | Manufacturers and Traders Trust Company | 19.7% | 1,019 |
| 2024 | $47.60B | 52 | 314 | Manufacturers and Traders Trust Company | 17.2% | 1,004 |
| 2023 | $50.87B | 53 | 319 | Manufacturers and Traders Trust Company | 17.8% | 1,060 |
| 2022 | $58.72B | 52 | 340 | Manufacturers and Traders Trust Company | 19.4% | 1,142 |
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.