The 2021 Derbyshire County Council election took place alongside the other 2021 local elections. All 64 seats to Derbyshire County Council were contested. The Conservatives retained control of the council with an increased majority. In addition, the Green Party gained representation for the first time.
Former MPs Ruth George and Edwina Currie stood against each other in Whaley Bridge with Ruth George emerging victorious. George lost her High Peak seat in 2019 and Currie lost her South Derbyshire seat in 1997.
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(10 seats, 9 electoral divisions)
(9 seats, 9 electoral divisions)
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. In May 2024, Nigel Gourlay was suspended by the Conservatives before resigning from the party and becoming an Independent.
The Long Eaton by-election was triggered by the death of Conservative councillor Alan Griffiths in July 2022.
The Swadlincote South by-election was triggered by the death of Conservative councillor Roger Redfern.