Southend-on-Sea City Council, formerly known as Southend-on-Sea Borough Council, is the local authority for the unitary authority of Southend-on-Sea in Essex, England. Until 1 April 1998 it was a non-metropolitan district.
A by-election occurs when seats become vacant between council elections. Below is a summary of by-elections from 1983 onwards. [5] Full by-election results are listed under the last regular election preceeding the by-election and can be found by clicking on the ward name.
| Ward | Date | Incumbent party | Winning party | ||
|---|---|---|---|---|---|
| Leigh | 7 March 1985 | Alliance | Alliance | ||
| Belfairs | 4 October 1985 | Alliance | Alliance | ||
| Leigh | 20 February 1986 | Alliance | Alliance | ||
| Blenheim | 7 September 1989 | SLD | Conservative | ||
| Blenheim | 7 September 1989 | SLD | SLD | ||
| Victoria | 7 February 1991 | Labour | Labour | ||
| Belfairs | 26 September 1991 | Liberal Democrats | Conservative | ||
| Belfairs | 9 April 1992 | Conservative | Conservative | ||
| Belfairs | 30 September 1993 | Conservative | Liberal Democrats | ||
| Ward | Date | Incumbent party | Winning party | ||
|---|---|---|---|---|---|
| Chalkwell | 19 February 1998 | Liberal Democrats | Conservative | ||
| Shoeburyness | 19 July 2001 | Labour | Conservative | ||
| West Shoebury | 7 December 2006 | Conservative | Conservative | ||
| Ward | Date | Incumbent party | Winning party | ||
|---|---|---|---|---|---|
| Shoeburyness | 20 September 2007 | Conservative | Independent | ||
| West Leigh | 23 January 2014 | Conservative | Conservative | ||
| Shoeburyness | 25 May 2017 | Independent | Independent | ||
| Milton | 21 March 2019 | Labour | Labour | ||
| Ward | Date | Incumbent party | Winning party | ||
|---|---|---|---|---|---|
| Southchurch | 3 March 2022 | Conservative | Conservative | ||
| Kursaal | 4 July 2024 | Labour | Labour | ||