Hillingdon London Borough Council elections

The members of the Hillingdon London Borough Council in London, England are elected every four years. Since the 2022 boundary changes, the council is composed of 53 councillors.

Council elections

 * 1964 Hillingdon London Borough Council election
 * 1968 Hillingdon London Borough Council election
 * 1971 Hillingdon London Borough Council election
 * 1974 Hillingdon London Borough Council election
 * 1978 Hillingdon London Borough Council election (boundary changes increased the number of seats by nine)
 * 1982 Hillingdon London Borough Council election
 * 1986 Hillingdon London Borough Council election
 * 1990 Hillingdon London Borough Council election
 * 1994 Hillingdon London Borough Council election (boundary changes took place but the number of seats remained the same)
 * 1998 Hillingdon London Borough Council election
 * 2002 Hillingdon London Borough Council election (boundary changes reduced the number of seats by four)
 * 2006 Hillingdon London Borough Council election
 * 2010 Hillingdon London Borough Council election
 * 2014 Hillingdon London Borough Council election
 * 2018 Hillingdon London Borough Council election
 * 2022 Hillingdon London Borough Council election (boundary changes reduced the number of seats by twelve)

1964-1968
There were no by-elections.

1982-1986
There were no by-elections.

1990-1994
The by-election was called following the resignation of Cllr. Graham E. Sewell.

The by-election was called following the resignation of Cllr. John Walker.

The by-election was called following the death of Cllr. Gordon Mcl. Bogan.

The by-election was called following the death of Cllr. Derek J. Tow.

The by-election was called following the death of Cllr. Kenneth R. Abel.

1994-1998
The by-election was called following the death of Cllr. Christopher J. Mullen.

The by-election was called following the resignation of Cllr. Gulab S. Sharma.

The by-election was called following the death of Cllr. Philip Kordun.

1998-2002
The by-election was called following the disqualification of Cllr. Mark J. Chester.

The by-election was called following the resignation of Cllr. Timothy J. Freeman.

2002-2006
The by-election was called following the resignation of Cllr. Jagjit S. Sidhu.

The by-election was called following the death of Cllr. James J. O'Neill

The by-election was called following the death of Cllr. Margaret A. Grant.

2006-2010
The by-election was called following the death of Cllr. Norman H. Nunn-Price.

The by-election was called following the death of Cllr. Solveig Stone.

The by-election was called following the disqualification of Cllr. D Ian Oakley.

2014-2018
By-election triggered by resignation of Labour councillor David Horne.

2018-2022
By-election triggered by resignation of Conservative councillor Pat Jackson.

By-election triggered by death of Conservative councillor Neil Fyfe.