Major highways

• U.S. Highway 80
• State Route 5
• State Route 14
• State Route 61
• State Route 175
• State Route 183
• State Route 219
• State Route 289

Adjacent counties

• Bibb County (north)
• Chilton County (northeast)
• Dallas County (east)
• Marengo County (southwest)
• Hale County (west)

National protected area

• Talladega National Forest (part)

2020 Census

As of the 2020 United States census, there were 8,511 people, 3,070 households, and 1,476 families residing in the county.

2010 census

As of the 2010 United States Census, there were 10,591 people living in the county. 68.7% were Black or African American, 30.3% White, 0.3% Asian, 0.2% Native American, 0.2% of some other race and 0.4% of two or more races. 1.1% were Hispanic or Latino (of any race).

2000 census

As of the census^[17] of 2000, there were 11,861 people, 4,333 households, and 3,046 families living in the county. The population density was 16 people per square mile (6.2 people/km²). There were 5,406 housing units at an average density of 8 units per square mile (3.1 units/km²). The racial makeup of the county was 68.38% Black or African American, 30.86% White, 0.08% Native American, 0.03% Asian, 0.03% Pacific Islander, 0.08% from other races, and 0.54% from two or more races. Nearly 0.86% of the population were Hispanic or Latino of any race.

There were 4,333 households, out of which 33.80% had children under the age of 18 living with them, 40.40% were married couples living together, 25.10% had a female householder with no husband present, and 29.70% were non-families. Nearly 27.90% of all households were made up of individuals, and 12.00% had someone living alone who was 65 years of age or older. The average household size was 2.63, and the average family size was 3.23.

In the county, the population was spread out, with 29.80% under the age of 18, 11.10% from 18 to 24, 23.60% from 25 to 44, 20.70% from 45 to 64, and 14.90% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 83.90 males. For every 100 females age 18 and over, there were 78.40 males.

The median income for a household in the county was $20,200, and the median income for a family was $26,150. Males had a median income of $26,272 versus $16,839 for females. The per capita income for the county was $10,948. About 31.20% of families and 35.40% of the population were below the poverty line, including 48.90% of those under age 18 and 25.80% of those age 65 or over.

Cities

• Marion (county seat)
• Uniontown

Unincorporated communities