Demography of the United States - Wikipedia, the free encyclopedia
Demographics of the United States Population 322,268,000 (3rd) Density 84.54 people/sq mi (180th) 32.54 people/km 2 Growth rate 0.77% (143rd) Birth rate 13.42 births/1,000 population (147th) Death rate 8.15/1,000 population (100th) Life expectancy 79.56 y...