| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | BancFirst | Bank | 3 | $389.8M | 21.97% |
| 2 | American Nation Bank | Bank | 5 | $386.2M | 21.77% |
| 3 | First National Bank and Trust Company of Ardmore | Bank | 5 | $327.2M | 18.44% |
| 4 | Citizens Bank and Trust Company of Ardmore | Bank | 4 | $271.4M | 15.30% |
| 5 | First Bank & Trust Co. | Bank | 3 | $231.1M | 13.02% |
| 6 | Communication Federal Credit Union | Credit union | 1 | $74.1M* | 4.17% |
| 7 | Simmons Bank | Bank | 1 | $36.3M | 2.05% |
| 8 | Mtc Federal Credit Union | Credit union | 1 | $26.0M* | 1.47% |
| 9 | BMO Bank National Association | Bank | 1 | $20.9M | 1.18% |
| 10 | International Bank of Commerce | Bank | 1 | $11.2M | 0.63% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $1.77B | 10 | 25 | BancFirst | 22.0% | 1,726 |
| 2024 | $1.71B | 10 | 25 | American Nation Bank | 22.0% | 1,694 |
| 2023 | $1.70B | 10 | 25 | American Nation Bank | 23.4% | 1,702 |
| 2022 | $1.80B | 9 | 25 | American Nation Bank | 21.5% | 1,639 |
Every institution above links to its profile — ratios, peer medians and this quarter’s change signals. Pro adds the full table, share movement and CSV export.