|Madison County, Arkansas|
Madison County Courthouse in Huntsville
Location in the U.S. state of Arkansas
Arkansas's location in the U.S.
|Founded||September 30, 1836|
|Named for||James Madison|
|• Total||837 sq mi (2,168 km2)|
|• Land||834 sq mi (2,160 km2)|
|• Water||2.8 sq mi (7 km2), 0.3%|
|• ( 2016)||16,072|
|• Density||19/sq mi (7/km2)|
|Time zone||Central: UTC−6/ −5|
Madison County is a county located in the U.S. state of Arkansas. As of the 2010 census, the population was 15,717.  The county seat is Huntsville.  The county was formed on September 30, 1836, and named for James Madison,  fourth President of the United States.
Madison County is part of the Northwest Arkansas region.
- Carroll County (north)
- Newton County (east)
- Johnson County (southeast)
- Franklin County (south)
- Crawford County (southwest)
- Washington County (west)
- Benton County (northwest)
- Ozark National Forest (part)
|U.S. Decennial Census
1790–1960  1900–1990 
1990–2000  2010–2016 
As of the 2000 census,  there were 14,243 people, 5,463 households, and 4,080 families residing in the county. The population density was 7/km² (17/mi²). There were 6,537 housing units at an average density of 3/km² (8/mi²). The racial makeup of the county was 95.94% White, 0.11% Black or African American, 1.22% Native American, 0.06% Asian, 0.09% Pacific Islander, 1.47% from other races, and 1.10% from two or more races. 3.06% of the population were Hispanic or Latino of any race.
There were 5,463 households out of which 33.90% had children under the age of 18 living with them, 63.00% were married couples living together, 7.90% had a female householder with no husband present, and 25.30% were non-families. 22.40% of all households were made up of individuals and 10.40% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.03.
In the county, the population was spread out with 26.80% under the age of 18, 7.50% from 18 to 24, 27.00% from 25 to 44, 24.30% from 45 to 64, and 14.40% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 99.70 males. For every 100 females age 18 and over, there were 97.30 males.
The median income for a household in the county was $27,895, and the median income for a family was $32,910. Males had a median income of $24,911 versus $18,786 for females. The per capita income for the county was $14,736. About 14.70% of families and 18.60% of the population were below the poverty line, including 24.60% of those under age 18 and 18.00% of those age 65 or over.
During the Secession Convention of 1861, Arkansas voted to leave the Union and join the Confederate States of America. When Chairman David Walker called for a second vote seeking a unanimous decision, only Madison County representative Isaac Murphy refused to change his vote.  Murphy would later be appointed Governor of Arkansas during Reconstruction under Abraham Lincoln's conciliatory policy.
Madison County is strongly Republican, and voted for the Republican candidate several times even when Arkansas was part of the " Solid South".
- Huntsville (county seat)
Townships in Arkansas are the divisions of a county. Each township includes unincorporated areas; some may have incorporated cities or towns within part of their boundaries. Arkansas townships have limited purposes in modern times. However, the United States Census does list Arkansas population based on townships (sometimes referred to as "county subdivisions" or "minor civil divisions"). Townships are also of value for historical purposes in terms of genealogical research. Each town or city is within one or more townships in an Arkansas county based on census maps and publications. The townships of Madison County are listed below; listed in parentheses are the cities, towns, and/or census-designated places that are fully or partially inside the township.  
( GNIS ID)
"Census 2010 U.S. Gazetteer Files: County Subdivisions in Arkansas". U.S. Census Bureau, Geography Division. Archived from
the original on 2014-05-31.
Source: "Census 2010 U.S. Gazetteer Files". U.S. Census Bureau, Geography Division.
- Orval E. Faubus (1910–1994), governor of Arkansas during the desegregation days, was from the Combs community near Huntsville. He is buried in Combs Cemetery. 
- Ronnie Hawkins, rockabilly singer. His backing band, The Hawks, later played with Bob Dylan and eventually became The Band.
- Danny L. Patrick, Republican member of the Arkansas House of Representatives from Madison and Carroll counties from 1967 to 1970. 
- John Selman, outlaw and lawman, best known for killing John Wesley Hardin in 1895, was born in Madison County.
- List of lakes in Madison County, Arkansas
- National Register of Historic Places listings in Madison County, Arkansas
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 14, 2011. Retrieved May 23, 2014.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. U.S. Government Printing Office. p. 196.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved August 27, 2015.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Retrieved August 27, 2015.
- "Historical Census Browser". University of Virginia Library. Retrieved August 27, 2015.
- Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved August 27, 2015.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved August 27, 2015.
- Based on 2000 census data
- "American FactFinder". United States Census Bureau. Retrieved 2011-05-14.
- The Edge of Conflict: Arkansas in the Civil War. PBS. 1995.
- "Dave Leip's Atlas of U.S. Presidential Elections". Retrieved November 18, 2016.
- FAA Airport Master Record for H34 ( PDF). Federal Aviation Administration. Effective 25 August 2011.
- 2011 Boundary and Annexation Survey (BAS): Madison County, AR (PDF) (Map). U. S. Census Bureau. Archived from the original (PDF) on 2012-10-19. Retrieved 2011-07-27.
- "Arkansas: 2010 Census Block Maps - County Subdivision". United States Census Bureau. Retrieved June 28, 2014.
- "Danny Lee Patrick", Arkansas Democrat-Gazette, July 29, 2009