This article is about elections to the Dorset County Council abolished in 2019. For elections to the successor Dorset Council, see Dorset Council elections.
Dorset County Council was a non-metropolitan county in England. Elections were first held on 23 January 1889, thereafter elections were held every three years, with all members being elected by the first past the post system of election on the same day. Later, the cycle was changed to one election in every four years, and the last such election was in 2017. There were also occasional by-elections, the last of which took place in December 2016.
By-elections occur when seats become vacant between council elections. Below is a summary of recent by-elections;[14] full by-election results can be found by clicking on the by-election name.
^Liberal prior to 1981, SDP-Liberal Alliance from 1981 to 1988.
^Rallings, Colin; Thrasher, Michael (1973). Local Elections Handbook 1973: The 1973 Local Election Results. Plymouth: The Elections Centre. pp. 374–81.
^Rallings, Colin; Thrasher, Michael (1977). Local Elections Handbook 1977: The 1977 Local Election Results. Plymouth: The Elections Centre. p. 8.
^Rallings, Colin; Thrasher, Michael (1981). Local Elections Handbook 1981: The 1981 Local Election Results. Plymouth: The Elections Centre. p. 8.
^Rallings, Colin; Thrasher, Michael (1985). Local Elections Handbook 1985: The 1985 Local Election Results. Vol. 1. Plymouth: The Elections Centre. p. 218.
^Rallings, Colin; Thrasher, Michael (1989). Local Elections Handbook 1989: The 1989 Local Election Results. Vol. 1. Plymouth: The Elections Centre. p. 76.
^Rallings, Colin; Thrasher, Michael (1993). Local Elections Handbook 1993: The 1993 Local Election Results. Plymouth: The Elections Centre. p. 1.
^Rallings, Colin; Thrasher, Michael (1997). Local Elections Handbook 1997: The 1997 Local Election Results. Plymouth: The Elections Centre. p. 4.
^Rallings, Colin; Thrasher, Michael (2001). Local Elections Handbook 2001: The 2001 Local Election Results. Plymouth: The Elections Centre. p. 4.
^Rallings, Colin; Thrasher, Michael (2005). Local Elections Handbook 2005: The 2005 Local Election Results. Plymouth: The Elections Centre. pp. 3–4.