2015 Swale Borough Council election

An election was held to Swale Borough Council in England as part of the United Kingdom local elections on 7 May 2015. All 47 seats were up for election under new ward boundaries.

The party results were as follows: Conservatives: 32, UKIP: 9, Labour: 4, and Independents: 2.

Milton Regis
A by-election was held in Milton Regis on 3 August 2017 after the death of UKIP councillor Katy Coleman. The seat was gained for Labour by former councillor Tony Winckless with a majority of 318 votes over Conservative candidate Kane Roy Blackwell.

Sheppey East
A by-election was held in Sheppey East on 3 May 2018 after the resignation of Conservative councillor Lesley Ingham. The seat was held for the Conservatives by Lynd Ernest Taylor with a majority of 184 votes over Labour candidate Gill Smith.

Changes between 2015 and 2019
UKIP councillor Katy Coleman (Milton Regis) died suddenly on 30 May 2017. At the consequent by-election on 3 August 2017 Labour gained the seat. New councillor Tony Winckless.

Conservative councillor Lesley Ingham (Sheppey East) resigned her seat in March 2018. At the consequent by-election on 3 May 2018 the Conservatives held the seat. New councillor Lynd Taylor.

In April 2018, all 8 remaining UKIP councillors chose to sit as 'The Swale Group'. This was reduced by one on the 7 April 2019 when former UKIP councillor Padmini Nissanga (Sheppey East) was expelled from The Swale Group following accusations of racism and now sits as an Independent