Lewis County, Kentucky (Formed 1807) Land Area Year Population (sq.mi) Density 2010 13,870 482.8 28.7 2000 14,092 484.5 29.1 1990 13,029 484.5 26.9 1980 14,545 484.5 30.0 1970 12,355 484.5 25.5 1960 13,115 484.5 27.1 1950 13,520 484.5 27.9 1940 15,686 484.5 32.4 1930 14,315 484.5 29.5 1920 15,829 484.5 32.7 1910 16,887 491.0 34.4 1900 17,868 476.0 37.5 1890 14,803 476.0 31.1 1880 13,154 484.6 27.1 1870 9,115 484.6 18.8 1860 8,361 493.5 16.9 1850 7,202 498.7 14.4 1840 6,306 497.2 12.7 1830 5,229 495.8 10.5 1820 3,973 495.8 8.0 1810 2,357 491.7 4.8