Grayson County, Kentucky (Formed 1810)
                Land Area          
Year  Population  (sq.mi)   Density
2010     25,746     496.7     51.8
2000     24,053     503.7     47.8
1990     21,050     503.7     41.8
1980     20,854     503.7     41.4
1970     16,445     503.7     32.6
1960     15,834     503.7     31.4
1950     17,063     503.7     33.9
1940     17,562     503.7     34.9
1930     17,055     503.7     33.9
1920     19,927     503.7     39.6
1910     19,958     497.0     40.2
1900     19,878     525.0     37.9
1890     18,688     525.0     35.6
1880     15,784     504.7     31.3
1870     11,580     504.7     22.9
1860      7,982     505.3     15.8
1850      6,837     511.0     13.4
1840      4,461     496.3      9.0
1830      3,880     495.1      7.8
1820      4,055     617.2      6.6