The Salisbury constituency covers not just the City of Salisbury but also large areas of the Cranborne Chase Area of Outstanding Natural Beauty, as far West as parts of the historic market town of Shaftesbury. It also includes the magnificent villages of villages of Tisbury and Tollard Royal to the West, Downton in the South East and Porton Down in the North East.

At the last census Salisbury constituency had 70,242 voters in 18 electoral wards.