Blenheim Park is an electoral ward of Southend-on-Sea. It was first used at the 2001 elections. The ward returns three councillors to Southend-on-Sea City Council.
The ward has been represented by three councillors since the first election in 1973.
Councillors elected by party at each regular election.
There was a revision of ward boundaries in Southend-on-Sea in 2001 with all seats up for election that year. The subsequent election cycle for the first Blenheim Park seat was 2002, 2006, 2010, 2014, 2018 and 2022. The cycle for the second seat was 2003, 2007, 2011, 2015, 2019 and 2023. The cycle for the third seat was 2004, 2008, 2012, 2016, 2021 and 2024.
The election took place on 2 May 2024.
The election took place on 4 May 2023.
The election took place on 4 May 2022.
The election took place on 6 May 2021.
The election took place on 2 May 2019.
No UKIP candidate as previous (-4.1).
Green candidate compared with 2016 election.
The election took place on 3 May 2018.
Floyd Waterworth defected from UKIP to the Conservatives before the election.
No Green candidate as previous (-4.2).
The election took place on 5 May 2016.
The election took place on 7 May 2015.
The election took place on 22 May 2014.
The election took place on 3 May 2012.
The election took place on 5 May 2011.
The election took place on 6 May 2010.
The election took place on 1 May 2008.
The election took place on 3 May 2007.
The election took place on 4 May 2006.
The election took place on 10 June 2004.
The election took place on 1 May 2003.
The election took place on 2 May 2002.
The election took place on 7 June 2001.