Todd County, Kentucky (Formed 1820)
                Land Area          
Year  Population  (sq.mi)   Density
2010     12,460     374.5     33.3
2000     11,971     376.4     31.8
1990     10,940     376.4     29.1
1980     11,874     376.4     31.5
1970     10,823     376.4     28.8
1960     11,364     376.4     30.2
1950     12,890     376.4     34.2
1940     14,234     376.4     37.8
1930     13,520     376.4     35.9
1920     15,694     376.4     41.7
1910     16,488     367.0     44.9
1900     17,371     373.0     46.6
1890     16,814     373.0     45.1
1880     15,994     368.6     43.4
1870     12,612     368.6     34.2
1860     11,575     364.8     31.7
1850     12,268     372.3     33.0
1840      9,991     372.0     26.9
1830      8,680     372.0     23.3