[1] All 78 seats were up for election, with each ward returning either one or two councillors by first-past-the-post voting for a four-year term of office.

After the previous election in 2017, the Conservatives held 56 seats, the Liberal Democrats 19, Labour 2, and Community Campaign Hart 1.

In July 2019, Cllr Floss Mitchell resigned from the Conservative Party to sit as an unaffiliated independent.

[4][5] In December 2019, Cllr Michael Westbrook left the Labour Party alongside borough councillors to form the Basingstoke & Deane Independent Group[6] sitting with Community Campaign Hart as an independent grouping on the County Council.

[16] By-election triggered by resignation of Conservative councillor and former leader of Hampshire County Council, Rob Humby.