Every FDIC-insured bank branch in Atascosa County, Texas as of June 30, 2025. County land area: 1,220 square miles, 0.9 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Texas Champion Bank | 2 | $23.8M |
| SouthTrust Bank, N.A. | 1 | $34.0M |
| Security State Bank | 1 | $138.6M |
| TXN Bank | 1 | $35.7M |
| The Lytle State Bank of Lytle, Texas | 1 | $94.3M |
| Prosperity Bank | 1 | $91.9M |
| Atascosa Bank | 1 | $78.6M |
| First Commercial Bank, National Association | 1 | $96.8M |
| First National Bank Texas | 1 | $7.6M |
| Wells Fargo Bank, National Association | 1 | $112.4M |