Choiseul Province for the island are Choiseul and Lauru. San Marcos is not commonly used at this present day. Choiseul Province was initially not part of the British Solomon Islands. Like Buka, Bougainville (both now part of Papua New Guinea's North Solomons Province), Santa Isabel, and the Ontong Islands, it was part of the German Solomon Islands in 1884. Fifteen years later, in 1899, Germany ceded Choiseul, Isabel and Ontong Java to the British to become part of the British Solomon Islands. In 1900, Charles Woodford, the Resident Commissioner for the Solomon Islands sailed to Choiseul via Isabel on a ship named
Choiseul Province Torch and planted the British flag on Choiseul on 23 August 1900. Proclaiming Choiseul as part of the British Solomon. During World War II, North West Choiseul, along the Nukiki to Voza corridor was partly occupied by Japanese military forces whose garrison was raided by US marine forces in October and November 1943. The protectorate sets up the Choiseul Council in 1948. The council consists of representatives of the seven sub districts in Choiseul. The Council meets twice a year with the District Commissioner to discuss its business. On 25 February 1992, a separate Choiseul province was created by separation