Boyle County, Kentucky (Formed 1842) Land Area Year Population (sq.mi) Density 2010 28,432 180.2 157.8 2000 27,697 181.9 152.3 1990 25,641 181.6 141.2 1980 25,066 181.6 138.0 1970 21,861 181.6 120.4 1960 21,257 181.6 117.1 1950 20,532 181.6 113.1 1940 17,075 181.6 94.0 1930 16,282 181.6 89.7 1920 14,998 181.6 82.6 1910 14,668 186.0 78.9 1900 13,817 160.0 86.4 1890 12,948 160.0 80.9 1880 11,930 183.4 65.0 1870 9,515 183.4 51.9 1860 9,304 182.7 50.9 1850 9,116 183.4 49.7