Crawford County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 19,817. Its county seat is Robinson.
According to the U.S. Census Bureau, the county has a total area of 446 square miles (1,160 km), of which 444 square miles (1,150 km) is land and 2.2 square miles (5.7 km) (0.5%) is water. Some of the county’s eastern border is defined by the Wabash River.
As of the 2010 United States Census, there were 19,817 people, 7,763 households, and 5,154 families residing in the county. The population density was 44.7 inhabitants per square mile (17.3/km). There were 8,661 housing units at an average density of 19.5 per square mile (7.5/km). The racial makeup of the county was 92.8% white, 4.7% black or African American, 0.5% Asian, 0.2% American Indian, 0.8% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 1.8% of the population. In terms of ancestry, 25.0% were German, 14.4% were American, 12.4% were Irish, and 9.9% were English.
Of the 7,763 households, 28.5% had children under the age of 18 living with them, 52.6% were married couples living together, 9.4% had a female householder with no husband present, 33.6% were non-families, and 29.1% of all households were made up of individuals. The average household size was 2.36 and the average family size was 2.88. The median age was 41.7 years.
The median income for a household in the county was $41,434 and the median income for a family was $51,218. Males had a median income of $40,050 versus $30,870 for females. The per capita income for the county was $21,545. About 11.1% of families and 16.9% of the population were below the poverty line, including 27.0% of those under age 18 and 8.2% of those age 65 or over.