The 1857 Onkaparinga colonial by-election was held on 23 December 1857 to elect one of two members for Onkaparinga in the South Australian House of Assembly, after sitting member William Bower Dawes resigned on 24 November 1857.
William Townsend won the by-election with 53 per cent of the vote.
Background The by-election was trigged after William Bower Dawes resigned on 24 November 1857.
1857 election result
Results
See also List of South Australian House of Assembly by-elections
References