Cowichan was one of the first twelve electoral districts created when British Columbia became a Canadian province in 1871. It was located on southern Vancouver Island. It was a one-member riding only (unlike other early ridings). Its last appearance on the husting was in 1920. It was then superseded by Cowichan-Newcastle, which appeared in provincial elections from 1924 to 1963, after which a revised riding is named Cowichan-Malahat, which is extant today.
7th General Election, 1894
For the 1894 election, the Cowichan area was part of the Cowichan-Alberni electoral district. It resumed by the name Cowichan the next election after that, in 1898:
16th General Election, 1924
In the 1924 election, the Cowichan area became part of the new Cowichan-Newcastle riding.
Elections BC website - historical election data