year rank population 1840 92 4470 1850 24 29963 1860 9 112172 1870 5 298977 1880 4 503185 1890 2 1099850 1900 2 1698575 1910 2 2185283 1920 2 2701705 1930 2 3376438 1940 2 3396808 1950 2 3620962 1960 2 3550404 1970 2 3366957 1980 2 3005072 1990 3 2783726