CornerStone State Bank is a locally owned and operated, full-service financial institution that offers a range of savings and checking accounts for individuals and businesses. It also provides certificates of deposit and deferred retirement accounts. The bank offers home equity, stock, ready reserve, construction, and personal secured and unsecured loans, as well as loans for boats and motorcycles, recreational vehicles and home equity lines of credit. CornerStone State Bank provides mortgage loans for the purchase of homes. Additionally, the bank offers online calculators for loan amount calculation. It is a member of the Federal Deposit Insurance Corporation (FDIC). CornerStone State Bank maintains a location in Le Sueur, Minn.