[3] [4] The Eckington South and Renishaw by-election was triggered by the disqualification of Labour councillor Clive Hunt for non-attendance.

[5] The Killamarsh East by-election in May 2021 was triggered by the resignation of Conservative councillor Kevin Bone.

[7] The Barlow and Holmesfield by-election was triggered by the resignation of Conservative councillor Carol Huckerby.

The Killamarsh by-election in September 2021 was triggered by the resignation of Conservative councillor Nick Whitehead.

[6] The Pilsley and Morton by-election was triggered by the death of Labour councillor Patricia Holmes.