The Derbyshire County Council elections took place alongside the other 2021 local elections. All 64 seats to Derbyshire County Council were contested.[1] The Conservatives retained control of the council with an increased majority. In addition, the Green Party gained representation for the first time.[2]
In March 2023, Philip Rose and Alex Stevenson, both of whom had been elected as Conservatives, defected to Reform UK. In January 2025 they left and became Independents.[4] In May 2024, Nigel Gourlay was suspended by the Conservatives before resigning from the party and becoming an Independent.[5]