1918–1950: The Boroughs of Dover and Deal, the Urban District of Walmer, and the Rural Districts of Dover and
Eastry.
1950–1983: The Boroughs of Dover, Deal, and Sandwich, the Rural District of Dover, and the Rural District of Eastry, except the parishes included in the
Isle of Thanet constituency.
1983–2010: The
District of Dover wards of Aylesham, Barton, Buckland, Capel-le-Ferne, Castle, Cornilo, Eastry, Eythorne, Lower Walmer, Lydden and Temple Ewell, Maxton and Elms Vale, Middle Deal, Mill Hill, Mongeham, Noninstone, North Deal, Pineham, Priory, Ringwould, River, St Margaret's-at-Cliffe, St Radigund's, Shepherdswell with Coldred, Tower Hamlets, Town and Pier, and Upper Walmer.
2010–2024: The District of Dover wards of Aylesham, Buckland, Capel-le-Ferne, Castle, Eastry, Eythorne and Shepherdswell, Lydden and Temple Ewell, Maxton, Elms Vale and Priory, Middle Deal and Sholden, Mill Hill, North Deal, Ringwould, River, St Margaret's-at-Cliffe, St Radigund's, Tower Hamlets, Town and Pier, Walmer, and Whitfield.
2024–present: The District of Dover wards of Alkham & Capel-le-Ferne, Aylesham, Eythorne & Shepherdswell, Buckland, Dover Downs & River, Eastry Rural, Guston, Kingsdown & St. Margaret's-at-Cliffe, Maxton & Elms Vale, Middle Deal, Mill Hill, North Deal, St. Radigunds, Tower Hamlets, Town & Castle, Walmer, and Whitfield. :
Minor changes due to revision of ward boundaries. ==Charlie Elphicke scandal==