Banks in Jefferson County, New York
FDIC-insured institutions in Jefferson County held $2.2 billion in deposits as of June 30, 2026, according to the FDIC.
8 FDIC-insured institutions held $2.2 billion in deposits in 29 offices in Jefferson County at June 30, 2026; Watertown Savings Bank held the most, 36.5% of the county's.
Jefferson County, June 30, 2026
- $2.2 billion
- Deposits in the county
- $2,150,214,000
- At June 30, 2026, against $2.1 billion a year before, each year's own dollars.
- 8
- Institutions with deposits
- FDIC-insured banks and savings institutions with an office here that reported deposits.
- 29
- Offices
- Every office the survey lists here, against 30 in 2025.
- 36.5%
- The largest share
- Watertown Savings Bank, with $784.3 million in 10 offices.
Each institution’s share of the county’s deposits
3 more columns on a wider screen
| Institution | Deposits | Share |
|---|---|---|
| Watertown Savings Bank | $784.3 million | 36.5% |
| Community Bank, National Association | $673.5 million | 31.3% |
| Carthage Savings and Loan, National Association | $241.7 million | 11.2% |
| KeyBank National Association | $229.1 million | 10.7% |
| WSB Municipal Bank | $98.5 million | 4.6% |
| Gouverneur Savings and Loan Association | $89.4 million | 4.2% |
| The Upstate National Bank | $17.9 million | 0.8% |
| GS&L Municipal Bank | $15.9 million | 0.7% |
An institution with no office in the county in 2025 shows none for that year; a name is the survey’s for 2026, and one without a link has no page because it did not file a Call Report for the newest quarter.
Sources
- FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey — Federal Deposit Insurance Corporation · Public domain — U.S. Government work · retrieved September 27, 2026
Compiled automatically from FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey by a checked SQL query · Editor: Kian O'Connor · How this site is built
Data retrieved