Sebastian County is Arkansas's 56th county, formed on January 6, 1851, and named for William K. Sebastian, United States Senator from Arkansas.
Geography
According to the U.S. Census Bureau, the county has a total area of, of which is land and is water. It is the second-smallest county by area in Arkansas.
As of the 2000 United States Census, there were 115,071 people, 45,300 households, and 30,713 families residing in the county. The population density was 215 people per square mile. There were 49,311 housing units at an average density of 92 per square mile. The racial makeup of the county was 82.34% White, 6.16% Black or African American, 1.57% Native American, 3.51% Asian, 0.05% Pacific Islander, 3.71% from other races, and 2.67% from two or more races. 6.70% of the population were Hispanic or Latino of any race. 19.6% were of American, 12.6% German, 11.0% Irish and 9.0% English ancestry according to Census 2000. 5.49% reported speaking Spanishat home, while 1.47% speak Vietnamese and 0.97% Lao. In 2000 there were 45,300 households out of which 32.80% had children under the age of 18 living with them, 52.40% were married couplesliving together, 11.30% had a female householder with no husband present, and 32.20% were non-families. 27.50% of all households were made up of individuals and 10.00% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.04. In the county, the population was spread out with 26.00% under the age of 18, 9.20% from 18 to 24, 29.50% from 25 to 44, 22.30% from 45 to 64, and 13.00% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 95.30 males. For every 100 females age 18 and over, there were 92.10 males. The median income for a household in the county was $33,889, and the median income for a family was $41,303. Males had a median income of $30,056 versus $22,191 for females. The per capita income for the county was $18,424. About 10.40% of families and 13.60% of the population were below the poverty line, including 18.60% of those under age 18 and 10.00% of those age 65 or over. As of 2010 census the population of Sebastian County was 125,744. The racial makeup of the county was 72.83% Non-Hispanic white, 6.24% Non-Hispanic black, 1.88% Native American, 4.06% Asian, 0.09% Pacific Islander, 0.07% Non-Hispanics of some other race, 2.78% Non-Hispanics reporting two or more races and 12.82% Hispanics.
Government
Politics Whereas most of Arkansas was overwhelmingly blue up to the mid-2000s, Sebastian has been a solidly Republican county since Dwight Eisenhower won it in 1952. Since that election, no Democrat has ever again carried this county, though native son Bill Clinton came less than 300 votes of doing so in 1992.