In the Šumadija regions - Kačer, Gruža, Lepenica, Kragujevačka Jasenica, Smederevsko Podunavlje and Jasenica, Kosmaj and in the villages around Belgrade, 8,894 kin families with 52,475 households were included in the study of J. Cvijić. Of these, only 464 families with 3,603 houses were old (starinci, also called natives), which is close to the number of families of unknown descent (470 families with 2,464 houses), with the rest of the population being settlers (7,960 families, 46,408 houses). Šumadija was settled from almost all of the regions of the then Kingdom of Yugoslavia, though most of which came from the Dinaric areas, that is, Montenegro, Bosnia and Herzegovina, from Raška and Sandžak, Dalmatia, Lika, and the rest of the Dinaric areas. In lesser numbers they hailed from Kosovo, from Metohija, and the rest of the Yugoslav regions.