 The gmina covers an area of , and as of 2006 its total population is 12,792 (out of which the population of Krobia amounts to 4,022, and the population of the rural part of the gmina is 8,770).Apart from the town of Krobia, Gmina Krobia contains the villages and settlements of Bukownica, Chumiętki, Chwałkowo, Ciołkowo, Dębina, Domachowo, Florynki, Gogolewo, Grabianowo, Karzec, Kuczyna, Kuczynka, Niepart, Pijanowice, Posadowo, Potarzyca, Przyborowo, Pudliszki, Rogowo, Stara Krobia, Sułkowice, Wymysłowo, Ziemlin and Żychlewo.Gmina Krobia is bordered by the gminas of Gostyń, Miejska Górka, Pępowo, Piaski and Poniec.