Trustmark Financial Services Address: 117 Cowles Creek Rd, Clinton, MS 39056 Phone: (601) 631-3226 Banks, Financial Advisory Services Other Businesses: Trustmark National Bank at 500 Clinton Center Dr, Clinton, MS 39056 BankPlus at 108 Cynthia St, Clinton, MS 39056 Copiah Bank at 767 Clinton Pkwy, Clinton, MS 39056 Trustmark Bank at 1151 Pinehaven Rd, Clinton, MS 39056-3444