|• Total||2.9 sq mi (7.6 km2)|
|• Land||2.9 sq mi (7.5 km2)|
|• Water||0.0 sq mi (0.1 km2)|
|Elevation||787 ft (240 m)|
|• Density||1,303.8/sq mi (504.1/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||1095082 |
Madill is a city and county seat of Marshall County, Oklahoma, United States. It was named in honor of George Alexander Madill, an attorney for the St. Louis-San Francisco Railway. The population at the 2010 census was 3,770, an increase of 10.8 percent from 3,410 at the 2000 census. It is best known as the site of the annual National Sand Bass Festival.
Madill was founded in 1900 by William N. Taliaferro, who had settled in 1886, in what was then known as Pickens County, Chickasaw Nation, Indian Territory. Taliaferro owned a 600-acre farm and operated some ranches in the nearby town of Oakland. Oakland had been the area's largest town, but the railroad caused Madill to grow and Oakland, two miles northwest, to decline. A post office was established at Madill on April 29, 1901, The city was chartered on September 12, 1902. 
Madill is located at . According to the United States Census Bureau, the city has a total area of 2.9 square miles (7.5 km2), of which, 2.9 square miles (7.5 km2) of it is land and 0.04 square miles (0.10 km2) of it (1.37%) is water.(34.091261, -96.773565)
As of the census of 2000, there were 3,410 people, 1,284 households, and 830 families residing in the city. The population density was 1,179.8 people per square mile (455.6/km²). There were 1,453 housing units at an average density of 502.7 per square mile (194.1/km²). The racial makeup of the city was 64.52% White, 6.04% African American, 6.42% Native American, 0.26% Asian, 0.03% Pacific Islander, 15.84% from other races, and 6.89% from two or more races. Hispanic or Latino of any race were 20.97% of the population.
There were 1,284 households out of which 32.6% had children under the age of 18 living with them, 47.7% were married couples living together, 12.5% had a female householder with no husband present, and 35.3% were non-families. 32.2% of all households were made up of individuals and 19.4% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.12.
In the city the population was spread out with 26.8% under the age of 18, 9.7% from 18 to 24, 25.3% from 25 to 44, 18.7% from 45 to 64, and 19.6% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 90.1 males. For every 100 females age 18 and over, there were 86.3 males.
The median income for a household in the city was $22,457, and the median income for a family was $26,892. Males had a median income of $22,420 versus $18,203 for females. The per capita income for the city was $12,614. About 19.2% of families and 26.1% of the population were below the poverty line, including 36.2% of those under age 18 and 19.7% of those age 65 or over.
BNSF Railway, the successor railroad to the Frisco, has a crew change point here on the line from Dallas to Tulsa. Highways serving Madill include US-70, US-177, US-377, and SH-199. There is also a small municipal airport (FAA code 1F4) north of the city.
Madill is well known for its trailer manufacturing firms. These include CM Trailers and WW Trailers. Other businesses include Savage, a manufacturer of agricultural processing equipment, Mid American Steel and Wire a supplier of steel wire for Oklahoma Steel and Wire, and J&I Manufacturing, a maker of truck beds.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- CensusViewer:Madill, Oklahoma Population[Madill, Oklahoma Population]
- Encyclopedia of Oklahoma History and Culture. "Madill." Retrieved January 31, 2013.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- U.S. Decennial Census; census.gov