Floyd county is in the Eastern Coal Field region of Kentucky. The elevation in the county ranges from 580 to 2320 feet above sea level.
It was formed in 1800 from Fleming, Mason, and Montgomery counties. Floyd county was a source of Perry (1821), Lawrence (1822), Pike (1822), Morgan (1823), Johnson (1843), Magoffin (1860), Martin (1870), and Knott (1884) counties. The county seat is Prestonsburg.
In 2010 the county population was 39,451 in a land area of 393.35 square miles, an average of 100.3 people per square mile.
The equine population was 800 in the 2012 Kentucky Equine Survey.
Floyd county was named for John Floyd, an explorer and surveyor.