Banks in Lewis County, New York
6 active bank branches operated by 3 institutions, per FDIC records.
Active branches
6
Banks present
3
Deposits (2025)
$388M
Closings since 2020
1
0 openings
Largest banks by deposits in Lewis County (2025)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Community Bank | $286M | 73.7% | 4 |
| KeyBank | $85M | 22% | 1 |
| Carthage Savings and Loan | $17M | 4.3% | 1 |
Deposit location reflects the office to which deposits are reported and may not represent the residence of depositors.
Cities and towns
Transcribed from FDIC BankFind Suite active-location records and the annual Summary of Deposits. County assignment follows the FDIC branch record.