About Us: Southeastern Bank, established in 1888, has a long history of serving its customers and communities. From traditional deposit and loan services to long-term mortgage originations and credit cards, Southeastern Bank has the financial products you need most. The Bank has 10 branch locations throughout coastal Georgia and northeast Florida, including Brunswick, Callahan, Darien, Eulonia, Folkston, Hilliard, Kingsland, Nahunta, Richmond Hill and St. Simons Island, and a loan production office in Hinesville.