Jefferson County, Arkansas is a county located in the U.S. state of Arkansas in the area known as the Arkansas Delta, that extends west of the Mississippi River. As of the 2010 census, the population was 77,435. Its county seat and largest city is Pine Bluff. Jefferson County is Arkansas’s 21st county, formed on November 2, 1829, from portions of Arkansas and Pulaski counties, and named for Thomas Jefferson, third President of the United States. Jefferson County is included in the Pine Bluff, Arkansas Metropolitan Statistical Area. The county is bisected by the Arkansas River, which was critical to its development and long the chief transportation byway.
According to the U.S. Census Bureau, the county has a total area of 914 square miles (2,370 km), of which 871 square miles (2,260 km) is land and 43 square miles (110 km) (4.7%) is water. About 75% of the county including the largest city, Pine Bluff, is located in the Arkansas Delta with the remaining portion in the Arkansas Timberlands. Consequently, it is largely low-lying flatland to the east used primarily for agriculture and expanses of trees used for timber to the west.
As of the 2010 census, there were 77,435 people residing in the county. 55.1% were Black or African American, 42.0% White, 0.8% Asian, 0.3% Native American, 0.7% of some other race and 1.2% of two or more races. 1.6% were Hispanic or Latino (of any race).
As of the 2000 census, there were 84,278 people, 30,555 households, and 21,510 families residing in the county. The population density was 95 people per square mile (37/km²). There were 34,350 housing units at an average density of 39 per square mile (15/km²). The racial makeup of the county was 49.58% Black or African American, 48.46% White, 0.24% Native American, 0.66% Asian, 0.04% Pacific Islander, 0.26% from other races, and 0.76% from two or more races. 0.96% of the population were Hispanic or Latino of any race. By comparison, the county had 15,714 residents in 1870, 20% of whom were White.
In the county, there were 30,555 households out of which 33.10% had children under the age of 18 living with them, 47.40% were married couples living together, 18.80% had a female householder with no husband present, and 29.60% were non-families. 26.20% of all households were made up of individuals and 10.60% 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 3.13. The population was spread out with 26.30% under the age of 18, 10.80% from 18 to 24, 27.80% from 25 to 44, 22.10% from 45 to 64, and 12.90% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 95.90 males. For every 100 females age 18 and over, there were 93.40 males.
Jefferson County experienced a decline in population between 2000 and 2010 of 8.1%. The county has continued to decline in population since 2010, showing a 3.5% decrease in population to 74,723 between the 2010 census and the 2012 (-3.5%) census estimates.
The median income for a household in the county was $31,327, and the median income for a family was $38,252. Males had a median income of $31,848 versus $21,867 for females. The per capita income for the county was $15,417. About 16.00% of families and 20.50% of the population were below the poverty line, including 29.60% of those under age 18 and 17.80% of those age 65 or over.
71601–71603, 71644, 71659, 72004, 72046, 72073, 72079, 72132, 72150, 72152, 72160, 72168, 72175