Dal 2010 al 2024 collegio comprendeva i ward del distretto di West Wiltshire di Dilton Marsh, Ethandune, Mid Wylye Valley, Shearwater, Southwick and Wingfield, Summerham, Trowbridge Adcroft, Trowbridge College, Trowbridge Drynham, Trowbridge John of Gaunt, Trowbridge Park, Warminster East, Warminster West, Westbury Ham e Westbury Laverton e i ward del distretto di Salisbury di Donhead, Fonthill and Nadder, Knoyle, Tisbury and Fovant, e Western and Mere.
Dal 2024 comprende le seguenti divisioni elettorali del Wiltshire: Ethandune; Hilperton; Mere; Southwick; Trowbridge Adcroft; Trowbridge Central; Trowbridge Drynham; Trowbridge Grove; Trowbridge Lambrok; Trowbridge Park; Trowbridge Paxcroft; Warminster Broadway; Warminster East; Warminster North and Rural; Warminster West; Westbury East; Westbury North; Westbury West e Wylye Valley.[1]