First Financial Bank Address: 1775 E State Road 163, Clinton, IN 47842 Phone: (765) 832-5546 Banks Other Businesses: First Financial Bank at 221 S Main St, Clinton, IN 47842 Old National Bank at 407 S Main, Clinton, IN 47842 License Branch at 123 N Main St, Clinton, IN 47842 A Oaks Septic Tank Service at 384 N Kibby St, Clinton, IN 47842