Every FDIC-insured bank branch in Sheridan County, Wyoming as of June 30, 2025. County land area: 2,523 square miles, 0.6 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| First Interstate Bank | 2 | $330.0M |
| First Federal Bank & Trust | 2 | $505.5M |
| Cowboy State Bank | 2 | $45.4M |
| Little Horn State Bank | 1 | $23.0M |
| Security State Bank | 1 | $90.3M |
| BMO Bank National Association | 1 | $30.6M |
| First Northern Bank of Wyoming | 1 | $146.3M |
| Buffalo Federal Bank | 1 | $26.2M |
| Glacier Bank | 1 | $37.6M |
| Wells Fargo Bank, National Association | 1 | $64.1M |
| U.S. Bank National Association | 1 | $61.1M |