Graves County, Kentucky (Formed 1824) Land Area Year Population (sq.mi) Density 2010 37,121 551.7 67.3 2000 37,028 555.6 66.6 1990 33,550 555.7 60.4 1980 34,049 555.7 61.3 1970 30,939 555.7 55.7 1960 30,021 555.7 54.0 1950 31,364 555.7 56.4 1940 31,763 555.7 57.2 1930 30,778 555.7 55.4 1920 32,483 555.7 58.5 1910 33,539 551.0 60.9 1900 33,204 550.0 60.4 1890 28,534 550.0 51.9 1880 24,138 557.2 43.3 1870 19,398 557.2 34.8 1860 16,233 557.6 29.1 1850 11,397 557.2 20.5 1840 7,465 557.6 13.4 1830 2,504 557.6 4.5