Canterbury and Whitstable will have different MPs under proposals published by The Boundary Commission for England today.
The country could see the number of MPs cut from 650 to 600.
The changes are designed to refine voting boundaries as the population shifts and areas grow while others shrink.
Under the changes Whitstable would form part of the North Thanet constituency which has consistently elected Conservative Roger Gale since its creation in 1983.
Faversham, which currently falls under fellow Conservative Helen Whately, is set to join Canterbury.
On the east side of the constituency, Wingham and Ash would be absorbed by the new Canterbury and Faversham constituency.
Historically, Whitstable has tended towards a left-wing vote while Herne Bay has typically voted to the right. Faversham has been a safe Conservative seat, but Liberal Democrat Antony Hook confounded expectations with a promising win in the 2017 county elections.
Nationally, Labour has accused the government of “gerrymandering” – the act of redrawing political boundaries to suit a particular party, but the Tories have insisted the boundaries are decided by population figures, which are currently out of date.
The Canterbury Conservative association is yet to select a successor to Julian Brazier whose surprise loss to Labour’s Rosie Duffield made national headlines. The position is currently vacant should Oxford-educated Helen Whately choose to contest it, although the boundary changes may not be implemented in time should a snap election occur.
The report will now be presented to Parliament where MPs will have the opportunity to vote on the proposals.