Boone County, Kentucky (Formed 1799) Land Area Year Population (sq.mi) Density 2010 118,811 246.4 482.3 2000 85,991 246.3 349.2 1990 57,589 246.3 233.8 1980 45,842 246.3 186.1 1970 32,812 246.3 133.2 1960 21,940 246.3 89.1 1950 13,015 246.3 52.8 1940 10,820 246.3 43.9 1930 9,595 246.3 39.0 1920 9,572 246.3 38.9 1910 9,420 251.0 37.5 1900 11,170 242.0 46.2 1890 12,246 242.0 50.6 1880 11,996 250.7 47.9 1870 10,696 250.7 42.7 1860 11,196 259.1 43.2 1850 11,185 255.2 43.8 1840 10,034 259.1 38.7 1830 9,075 278.7 32.6 1820 6,542 259.9 25.2 1810 3,608 256.6 14.1 1800 1,534 257.0 6.0