Of the some 75,000 inhabitants of the commune listed in the census statistics, grossly 60,000 live in the city proper: the remaining are distributed in several frazioni, including Marina di Grosseto, the biggest one, Roselle (cfr. infra), Principina a Mare, Montepescali, Braccagni, Istia d'Ombrone, Batignano and Alberese.