|Floyd County, Kentucky|
Floyd County Courthouse
Location in the U.S. state of Kentucky
Kentucky's location in the U.S.
|Named for||John Floyd|
|• Total||396 sq mi (1,026 km2)|
|• Land||393 sq mi (1,018 km2)|
|• Water||2.4 sq mi (6 km2), 0.6%|
|• ( 2010)||39,451|
|• Density||100/sq mi (40/km2)|
|Time zone||Eastern: UTC−5/ −4|
Floyd County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 39,451.  Its county seat is Prestonsburg.  The county, founded in 1800, is named for Colonel John Floyd (1750–1783).  
On December 13, 1799, the Kentucky General Assembly passed legislation to form Floyd County as the 40th county of Kentucky.  The county was made from parts of Fleming, Montgomery, and Mason County, Kentucky. The legislation became effective on June 1, 1800.  The county was named for James John Floyd, a pioneer surveyor who helped lay out the city of Louisville. The county seat was Preston's Station, later renamed Prestonsburg. The first court house burned down on April 8, 1808, destroying all the early records, so the earliest records of government activity do not date prior to 1808.  Prestonsburg was used as a Confederate stronghold during the Civil War and two battles took place nearby, the Battle of Ivy Mountain on November 8, 1861 and the Battle of Middle Creek on January 10, 1862.  Both were Union victories. In 1958, the county was the site of one of the deadliest bus accidents in U.S. history.
- Johnson County (north)
- Martin County (northeast)
- Pike County (east)
- Knott County (southwest)
- Magoffin County (northwest)
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2013 
As of the 2010 United States Census, there were 39,451 people residing in the county. 98.2% were White, 0.7% Black or African American, 0.2% Asian, 0.1% Native American, 0.2% of some other race and 0.6% of two or more races. 0.6% were Hispanic or Latino (of any race).
As of the census  of 2000, there were 42,441 people, 16,881 households, and 12,272 families residing in the county. The population density was 108 per square mile (42/km2). There were 18,551 housing units at an average density of 47 per square mile (18/km2). The racial makeup of the county was 97.73% White, 1.29% Black or African American, 0.12% Native American, 0.24% Asian, 0.08% Pacific Islander, 0.12% from other races, and 0.42% from two or more races. 0.61% of the population were Hispanic or Latino of any race. The Kentucky Melungeons live primarily in Floyd and Magoffin counties, especially in a valley known as Big Lick in Floyd County.
There were 16,881 households out of which 33.00% had children under the age of 18 living with them, 56.50% were married couples living together, 12.30% had a female householder with no husband present, and 27.30% were non-families. 25.20% of all households were made up of individuals and 10.20% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.93.
In the county, the population was spread out with 23.60% under the age of 18, 9.40% from 18 to 24, 30.30% from 25 to 44, 24.50% from 45 to 64, and 12.20% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 96.70 males. For every 100 females age 18 and over, there were 95.00 males.
The median income for a household in the county was $21,168, and the median income for a family was $25,717. Males had a median income of $30,242 versus $20,569 for females. The per capita income for the county was $12,442. About 26.90% of families and 30.30% of the population were below the poverty line, including 39.80% of those under age 18 and 20.50% of those age 65 or over.
Floyd County is traditionally a Democratic county. The county gave Bill Clinton over 65% in both 1992 and 1996 while George W. Bush never received more than 38% of the county's vote.  In 2008 its votes went to the Republican Party's presidential candidate for the first time in the county's history. The county has trended strongly Republican in the past two Presidential elections, giving Donald Trump 72.5% of its vote in 2016. 
- Blue Moon
- Blue River
- Dema (part)
- Hi Hat
- Jacks Creek
- Jump Station
- Big Sandy Area Development District
- East Kentucky Science Center
- Eula Hall
- James John Floyd
- Samuel May House
- Mountain Arts Center
- National Register of Historic Places listings in Floyd County, Kentucky
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 10, 2011. Retrieved March 6, 2014.
- "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 127.
- Kleber, John E. The Kentucky Encyclodpedia (University Press of Kentucky), p. 330
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on August 12, 2014. Retrieved August 14, 2014.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved August 14, 2014.
- "Historical Census Browser". University of Virginia Library. Retrieved August 14, 2014.
- "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved August 14, 2014.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved August 14, 2014.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2008-01-31.
- Floyd County School District
- Blackhawk Mining - Operations Archived 2013-08-14 at the Wayback Machine.
- James River Coal Company – McCoy Elkhorn complex
- The New York Times Electoral Map (Zoom in on Kentucky)
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 2018-07-01.
- Bette Henritze on IMDb
- Floyd County record of the birth of Bette J. Henritze
- Floyd County Times
- Floyd County Chamber of Commerce website
- The Kentucky Highlands Project
- Sandy Valley Transportation Services, Inc.