Banks in Flatonia, Texas, the US. Banks locations in Flatonia, Texas. Find the nearest banks locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Lawyer Real estate School All banks in Flatonia Flatonia National Bank ATM Finance Bank +1 361-865-3800 114 North La Grange Street, Flatonia, Texas 78941 Write a review Phone Website Directions Flatonia National Bank Finance Bank e 78941, 518 East 7th Street, Flatonia, Texas 78941 Write a review Phone Website Directions