Caldwell County, Kentucky (Formed 1809) Land Area Year Population (sq.mi) Density 2010 12,984 344.8 37.7 2000 13,060 347.0 37.6 1990 13,232 347.0 38.1 1980 13,473 347.0 38.8 1970 13,179 347.0 38.0 1960 13,073 347.0 37.7 1950 13,199 347.0 38.0 1940 14,499 347.0 41.8 1930 13,781 347.0 39.7 1920 13,975 347.0 40.3 1910 14,063 322.0 43.7 1900 14,510 338.0 42.9 1890 13,186 338.0 39.0 1880 11,282 348.9 32.3 1870 10,826 348.9 31.0 1860 9,318 349.8 26.6 1850 13,048 601.7 21.7 1840 10,365 620.2 16.7 1830 8,324 620.2 13.4 1820 9,022 670.6 13.5 1810 4,268 752.3 5.7