Major highways

Adjacent counties

2020 census

The 2020 census recorded a population of 10,033 in the county, with a population density of 17.3236/sq mi (6.6887/km²). 96.81% of the population reported being of one race. 93.01% were non-Hispanic White, 0.51% were Black, 2.14% were Hispanic, 0.15% were Native American, 0.16% were Asian, 0.00% were Native Hawaiian or Pacific Islander and 4.03% were some other race or more than one race. There were 4,654 housing units, of which 4,174 were occupied.^[1]

2010 census

The 2010 census recorded a population of 10,511 in the county, with a population density of 18.1478/sq mi (7.0069/km²). There were 4,931 housing units, of which 4,408 were occupied.^[15]

2000 census

As of the 2000 United States Census,^[16] there were 11,400 people, 4,586 households, and 3,155 families in the county. The population density was 20 people per square mile (7.7 people/km²). There were 5,013 housing units at an average density of 9 units per square mile (3.5 units/km²). The racial makeup of the county was 99.00% White, 0.07% Black or African American, 0.11% Native American, 0.23% Asian, 0.02% Pacific Islander, 0.21% from other races, and 0.36% from two or more races. 0.54% of the population were Hispanic or Latino of any race.

There were 4,586 households, out of which 30.50% had children under the age of 18 living with them, 59.00% were married couples living together, 6.50% had a female householder with no husband present, and 31.20% were non-families. 27.80% of all households were made up of individuals, and 15.80% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.99.

The county population contained 25.70% under the age of 18, 7.00% from 18 to 24, 25.50% from 25 to 44, 21.60% from 45 to 64, and 20.20% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 94.10 males. For every 100 females age 18 and over, there were 91.80 males.

The median income for a household in the county was $34,025, and the median income for a family was $41,818. Males had a median income of $28,306 versus $22,083 for females. The per capita income for the county was $17,120. About 7.50% of families and 10.10% of the population were below the poverty line, including 12.90% of those under age 18 and 10.50% of those age 65 or over.

Cities

Unincorporated communities

• Atwood^[8]
• Coal Creek^[8]
• Pekin (partial)^[8]
• Talleyrand^[8]

Townships

Population ranking

The population ranking of the following table is based on the 2020 census of Keokuk County.^[1]

† county seat