Codó is a city in the Maranhão, Brazil. It has an estimated population of 123,116 and an area of 4,361.344 km². Therefore, the sixth most pop…Codó is a city in the Maranhão, Brazil. It has an estimated population of 123,116 and an area of 4,361.344 km². Therefore, the sixth most populous municipality in the state. It has the largest concentration of religious centers of African origin in Brazil, with 400 terreiros.