Stratford , Warwick , and Kenilworth all house populations with more than 20,000 inhabitants , the smaller towns of Atherstone , Alcester , Coleshill , Southam , Bulkington , Polesworth , Kingsbury , Henley-in-Arden , Studley , Shipston and Whitnash have populations between 5,000 and 12,000 . Stratford , Warwick , and Kenilworth all house 20,000-25 ,000 inhabitants , while the smaller towns of Atherstone , Alcester , Coleshill , Southam , Bulkington , Polesworth , Kingsbury , Henley-in-Arden , Studley , Shipston . Wellesbourne and Whitnash have populations between 5,000 and 12,000 .