The Ranskill, Sutton and Tuxford and Trent wards all voted blue.
It comes during a great day for Bassetlaw Conservatives in the Nottinghamshire County Council elections, with the party seizing control of the authority.
The Tories retained or gained six of the nine available Bassetlaw posts – most notably in Labour strongholds Worksop South and Worksop North, with Bassetlaw District councillor and Kevin Greaves and Nottinghamshire Labour group leader Alan Rhodes losing their seats.
Here are the by-election results in full:
Conservatives: Gerald Bowers - 454 votes (ELECTED)
Liberal Democrats: Leon Duveen - 74 votes
Independent: Michael Gray - 193 votes
Conservative: Denise Depledge - 422 votes (ELECTED)
Liberal Democrats: Richard Harris - 107 votes
Labour: Laura Sanders - 134 votes
Tuxford and Trent
Labour: David Naylor - 472 votes
Liberal Democrats: James Nixon - 75 votes