Port Jefferson, New York
Banks & credit unions in Port Jefferson
6 federally insured institutions operate a branch in Port Jefferson, New York, across 5 locations.
Each institution’s branch count below is for Port Jefferson only. Select one to see its branches in this town.
| # | Institution | Type | Branches in Port Jefferson | Total assets |
|---|---|---|---|---|
| 1 | JPMorgan Chase Bank, National Association | Bank | 1 | $4.02T |
| 2 | Manufacturers and Traders Trust Company | Bank | 1 | $214.2B |
| 3 | Dime Commercial Bank | Bank | 1 | $14.99B |
| 4 | ConnectOne Bank | Bank | 1 | $14.2B |
| 5 | Hanover Community Bank | Bank | 1 | $2.37B |
| 6 | Suffolk | Credit union | 1 | $2.07B |
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026