Hopkins County, Kentucky (Formed 1807) Land Area Year Population (sq.mi) Density 2010 46,920 542.0 86.6 2000 46,519 550.6 84.5 1990 46,126 550.6 83.8 1980 46,174 550.6 83.9 1970 38,167 550.6 69.3 1960 38,458 550.6 69.8 1950 38,815 550.6 70.5 1940 37,789 550.6 68.6 1930 37,449 550.6 68.0 1920 34,133 550.6 62.0 1910 34,291 546.0 62.8 1900 30,995 555.0 55.8 1890 23,505 555.0 42.4 1880 19,122 554.4 34.5 1870 13,827 554.4 24.9 1860 11,875 553.3 21.5 1850 12,441 722.9 17.2 1840 9,171 725.3 12.6 1830 6,763 725.3 9.3 1820 5,322 725.3 7.3 1810 2,964 691.6 4.3