Theobroma is a municipality located in the Brazilian state of Rondônia. Its population was 10,395 and its area is 2,197 km². It is named after th…Theobroma is a municipality located in the Brazilian state of Rondônia. Its population was 10,395 and its area is 2,197 km². It is named after the plant genus Theobroma, which includes the economically significant Theobroma cacao.