Four horizontal stripes alternating green and yellow. In the canton, five white stars arranged in an 'X' on a field of blue.
The flag's design is based on the flag designed by industrialist José Rodrigues Bastos Coelho who needed a way to identify which state his ships originated from. Coelho's flag included the four small stars in the canton to represent the four rivers of the state . The fifth flag was added to represent the actual number of estuaries in Sergipe.