Banks in Williams County, North Dakota
FDIC-insured institutions in Williams County held $2.1 billion in deposits as of June 30, 2026, according to the FDIC.
6 FDIC-insured institutions held $2.1 billion in deposits in 11 offices in Williams County at June 30, 2026; American State Bank & Trust Company of Williston held the most, 27.1% of the county's.
Williams County, June 30, 2026
- $2.1 billion
- Deposits in the county
- $2,103,680,000
- At June 30, 2026, against $2.1 billion a year before, each year's own dollars.
- 6
- Institutions with deposits
- FDIC-insured banks and savings institutions with an office here that reported deposits.
- 11
- Offices
- Every office the survey lists here, against 11 in 2025.
- 27.1%
- The largest share
- American State Bank & Trust Company of Williston, with $569.1 million in 2 offices.
Each institution’s share of the county’s deposits
3 more columns on a wider screen
| Institution | Deposits | Share |
|---|---|---|
| American State Bank & Trust Company of Williston | $569.1 million | 27.1% |
| First International Bank & Trust | $465.0 million | 22.1% |
| First State Bank & Trust | $358.7 million | 17.1% |
| The Bank of Tioga | $334.2 million | 15.9% |
| Gate City Bank | $271.2 million | 12.9% |
| U.S. Bank National Association | $105.4 million | 5.0% |
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