1918-1983: i Municipal Borough di Chard e Yeovil, i distretti urbani di Crewkerne e Ilminster e i distretti rurali di Chard, Langport e Yeovil.
1983-1997: i ward del distretto du Yeovil di Blackdown, Chard North East, Chard North West, Chard Parish, Chard South East, Chard South West, Chinnock, Coker, Crewkerne Town, Dowlish, Egwood, Hazelbury, Houndstone, Ilminster Town, Lynches, Mudford, Neroche, St Michael's, South Petherton, Stoke, Windwhistle, Yeovil Central, Yeovil East, Yeovil North, Yeovil Preston, Yeovil South e Yeovil West.
1997-2010: i ward del distretto di South Somerset di Blackdown, Chard Avishayes, Chard Combe, Chard Crimchard, Chard Holyrood, Chard Jocelyn, Coker, Crewkerne, Egwood, Hamdon, Houndstone, Ilminster, Mudford, Neroche, Parrett, St Michael's, South Petherton, Tatworth and Forton, Windwhistle, Yeovil Central, Yeovil East, Yeovil Preston, Yeovil South, Yeovil West e Yeovil Without.
2010-2024: i ward del distretto di South Somerset di Blackdown, Brympton, Chard Avishayes, Chard Combe, Chard Crimchard, Chard Holyrood, Chard Jocelyn, Coker, Crewkerne, Egwood, Hamdon, Ilminster, Ivelchester, Neroche, Parrett, St Michael’s, South Petherton, Tatworth and Forton, Windwhistle, Yeovil Central, Yeovil East, Yeovil South, Yeovil West e Yeovil Without.
dal 2024: le divisioni elettorali del Somerset di Brympton; Chard North; Chard South; Coker; Crewkerne; Ilminster; South Petherton and Islemoor; Yeovil Central; Yeovil East; Yeovil South e Yeovil West.[1]
Nelle piccole modifiche implementate dalla Boundary Commission for England, la città di Ilchester fu restituita al collegio di Yeovil per le elezioni generali del 2010.
^Con (S) sono indicate le elezioni suppletive, svoltesi in anni diversi dalle elezioni generali per eleggere un deputato per il seggio divenuto vacante per dimissioni o morte