Ockendon is an electoral ward of Thurrock. It was first used at the 1979 elections. The ward returns three councillors to Thurrock Council.
There was a revision of ward boundaries in Thurrock in 2004 with all seats up for election that year. The subsequent election cycle for the first Ockendon seat was 2006, 2010, 2014, 2018 and 2022. The cycle for the second seat was 2007, 2011, 2015, 2019 and 2023. The cycle for the third seat was 2008, 2012, 2016, 2021 and 2024.
The by-election took place 1 May 2025, following the resignations of Ryan Polston and Andrew Jefferies.
The election took place on 2 May 2024.
The election took place on 4 May 2023.
The election took place on 5 May 2022.
The election took place on 6 May 2021.
The election took place on 2 May 2019.
The election took place on 3 May 2018.
The by-election took place on 22 March 2018, following the resignation of Kevin Wheeler. Andrew Jefferies and Les Strange each received 696 votes and the tie was resolved by picking the name of the winner out of a box.
The election took place on 5 May 2016.
The election took place on 7 May 2015.