Following their review of parliamentary representation in Suffolk the Boundary Commission for England has recommended minor alterations to the existing constituency arrangement. The electoral wards used in the creation of this seat are:
From the district of Mid Suffolk:Bacton and Old Newton, Badwell Ash, Elmswell and Norton, Gislingham, Haughley and Wetherden, Needham Market, Onehouse, Rattlesden, Rickinghall and Walsham, Ringshall, Stowmarket Central, Stowmarket North, Stowmarket South, Stowupland, Thurston and Hessett, and Woolpit
From the district of St Edmundsbury: Abbeygate, Eastgate, Fornham, Great Barton, Horringer and Whelnetham, Minden, Moreton Hall, Northgate, Pakenham, Risbygate, Rougham, St Olaves, Southgate, and Westgate.