The position of United States ambassador to Sri Lanka and the Maldives has existed since 1949. Sri LankaâÂÂUnited States relations and MaldivesâÂÂUnited States relations have been friendly throughout the history of Sri Lanka and the history of the Maldives. The diplomatic mission representing the United States in both countries is located in Colombo, Sri Lanka. Jefferson House is the ambassadorial residence of the ambassador in Colombo.