According to theU.S. Census Bureau, the county has a total area of 342 square miles (890 km2), of which 313 square miles (810 km2) is land and 29 square miles (75 km2) (8.5%) is water.[7] The western border withIllinois is formed by theOhio River.
As of the2020 census, the county had a population of 8,888. The median age was 47.7 years. 19.8% of residents were under the age of 18 and 23.2% of residents were 65 years of age or older. For every 100 females there were 97.0 males, and for every 100 females age 18 and over there were 95.2 males age 18 and over.[14][15]
4.7% of residents lived in urban areas, while 95.3% lived in rural areas.[16]
There were 3,789 households in the county, of which 26.2% had children under the age of 18 living with them and 23.5% had a female householder with no spouse or partner present. About 28.7% of all households were made up of individuals and 14.3% had someone living alone who was 65 years of age or older.[14]
There were 4,589 housing units, of which 17.4% were vacant. Among occupied housing units, 81.2% were owner-occupied and 18.8% were renter-occupied. The homeowner vacancy rate was 2.3% and the rental vacancy rate was 10.2%.[14]
There were 3,996 households, out of which 29.50% had children under the age of 18 living with them, 60.40% weremarried couples living together, 7.90% had a female householder with no husband present, and 27.60% were non-families. 24.40% of all households were made up of individuals, and 11.00% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.86.
The age distribution was 22.30% under the age of 18, 7.50% from 18 to 24, 28.20% from 25 to 44, 27.00% from 45 to 64, and 14.90% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 97.80 males. For every 100 females age 18 and over, there were 97.70 males.
The median income for a household in the county was $31,776, and the median income for a family was $39,486. Males had a median income of $33,633 versus $19,617 for females. Theper capita income for the county was $17,072. About 7.60% of families and 10.30% of the population were below thepoverty line, including 10.70% of those under age 18 and 15.80% of those age 65 or over.
James Ford (1775–1833), was acivic leader and businessman who was later discovered to be the secret criminal leader of a gang of Ohio River pirates andhighwaymen in the early 19th century.