Nevada County is a county located in the U.S. state of Arkansas. As of 2000, the population is 9,955. The county seat is Prescott. Nevada County is Arkansas's 63rd county, formed on March 20, 1871 and named for the State of Nevada due to the perceived similarity between their physical shapes; the Arkansas county's shape roughly follows the same outline as the state's boundary when inverted. Contrasting with the name of the U.S. state, the local pronunciation for the southwestern Arkansas county is "nuh-VAY-duh". It is an alcohol prohibition or dry county.
As of the census of 2000, there were 9,955 people, 3,893 households, and 2,721 families residing in the county. The population density was 16 people per square mile (6/km²). There were 4,751 housing units at an average density of 8 per square mile (3/km²). The racial makeup of the county was 66.90% White, 31.18% Black or African American, 0.38% Native American, 0.06% Asian, 0.85% from other races, and 0.62% from two or more races. 1.52% of the population were Hispanic or Latino of any race.
There were 3,893 households out of which 31.40% had children under the age of 18 living with them, 51.90% were married couples living together, 14.00% had a female householder with no husband present, and 30.10% were non-families. 27.80% of all households were made up of individuals and 13.70% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.02.
In the county the population was spread out with 25.20% under the age of 18, 8.70% from 18 to 24, 26.10% from 25 to 44, 23.80% from 45 to 64, and 16.10% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 94.40 males. For every 100 females age 18 and over, there were 89.90 males.
The median income for a household in the county was $26,962, and the median income for a family was $33,095. Males had a median income of $27,888 versus $17,920 for females. The per capita income for the county was $14,184. About 18.30% of families and 22.80% of the population were below the poverty line, including 28.00% of those under age 18 and 27.10% of those age 65 or over.