<< 1929Population density (people per sq. km) 19301931 >>WorldEuropeAsiaNorthern AmericaCentral AmericaSouth AmericaAfricaOceaniaSee also>Population pyramidImmigrant stockFertilityMortalityAt risk poverty<< 1929Comparison: Population 19301931 >>CountriesDensityPopulationCh.United States [+]13123,075,0001.07%