Every FDIC-insured bank branch in Stephens County, Oklahoma as of June 30, 2025. County land area: 870 square miles, 2.4 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| BancFirst | 5 | $341.4M |
| The First National Bank in Marlow | 3 | $61.2M |
| First Bank & Trust Co. | 3 | $345.3M |
| Arvest Bank | 3 | $209.5M |
| Legacy Bank | 2 | $101.0M |
| American Nation Bank | 1 | $29.9M |
| First National Bank and Trust Company of Ardmore | 1 | $47.5M |
| The City National Bank and Trust Company of Lawton, Oklahoma | 1 | $5.2M |
| Bank of Commerce | 1 | $174.2M |
| International Bank of Commerce | 1 | $21.3M |