A by-election was held in Botany electorate on Saturday March 5, 2011.
In the 2011 Botany by-election there were:
- 42,960 people enrolled.
- A total of 15,655 votes cast.
- 2,227 advance votes.
- 741 special votes, including 19 overseas votes.
Voter turnout for the 2011 Botany by-election was 36.44% of the 42,960 people enrolled.
The results by polling place are available from www.electionresults.govt.nz.