| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Manufacturers and Traders Trust Company | Bank | 16 | $6.55B | 46.90% |
| 2 | Bank of America, National Association | Bank | 6 | $1.66B | 11.90% |
| 3 | JPMorgan Chase Bank, National Association | Bank | 8 | $1.54B | 11.00% |
| 4 | Sikorsky Financial Credit Union | Credit union | 6 | $683.5M* | 4.89% |
| 5 | TD Bank, National Association | Bank | 5 | $679.5M | 4.86% |
| 6 | Webster Bank, National Association | Bank | 6 | $452.6M | 3.24% |
| 7 | Wells Fargo Bank, National Association | Bank | 2 | $366.0M | 2.62% |
| 8 | Citibank, National Association | Bank | 2 | $344.0M | 2.46% |
| 9 | Newtown Savings Bank | Bank | 4 | $309.2M | 2.21% |
| 10 | Fairfield County Bank | Bank | 3 | $300.5M | 2.15% |
| 20 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 |
|---|---|---|---|---|---|---|
| 2026 | $13.97B | 30 | 83 | Manufacturers and Traders Trust Company | 46.9% | 2,550 |
| 2025 | $13.99B | 29 | 82 | Manufacturers and Traders Trust Company | 48.8% | 2,714 |
| 2024 | $11.68B | 16 | 63 | Manufacturers and Traders Trust Company | 46.9% | 2,637 |
| 2023 | $41.53B | 20 | 99 | Webster Bank, National Association | 54.5% | 3,340 |
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.