year rank population 1840 67 6071 1850 41 17034 1860 21 43417 1870 15 92829 1880 11 160146 1890 10 261353 1900 7 381768 1910 6 560663 1920 5 796841 1930 6 900429 1940 6 878336 1950 7 914808 1960 8 876050 1970 10 750903 1980 18 573822 1990 23 505616