Dowell is a village in Jackson County, Illinois, United States. The population was 408 at the 2010 census, down from 441 at the 2000 census.
Dowell is located in northeastern Jackson County at 37°56′22″N 89°14′22″W / 37.93944°N 89.23944°W / 37.93944; -89.23944 (37.939545, -89.239553). U.S. Route 51 passes through the eastern side of the village, leading south 9 miles (14 km) to De Soto and north 5 miles (8 km) to Du Quoin.
According to the 2010 census, Dowell has a total area of 0.391 square miles (1.01 km), of which 0.39 square miles (1.01 km) (or 99.74%) is land and 0.001 square miles (0.00 km) (or 0.26%) is water.
As of the census of 2000, there were 441 people, 199 households, and 125 families residing in the village. The population density was 1,188.0 people per square mile (460.2/km²). There were 217 housing units at an average density of 584.6 per square mile (226.4/km²). The racial makeup of the village was 98.41% White, 0.23% African American, 0.91% Native American, and 0.45% from two or more races. Hispanic or Latino of any race were 0.45% of the population.
There were 199 households out of which 28.1% had children under the age of 18 living with them, 47.2% were married couples living together, 12.6% had a female householder with no husband present, and 36.7% were non-families. 29.1% of all households were made up of individuals and 17.6% had someone living alone who was 65 years of age or older. The average household size was 2.22 and the average family size was 2.75.
In the village, the population was spread out with 21.5% under the age of 18, 8.6% from 18 to 24, 26.5% from 25 to 44, 22.2% from 45 to 64, and 21.1% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 83.8 males. For every 100 females age 18 and over, there were 89.1 males.
The median income for a household in the village was $24,750, and the median income for a family was $28,958. Males had a median income of $24,821 versus $16,719 for females. The per capita income for the village was $12,464. About 10.3% of families and 13.3% of the population were below the poverty line, including 21.7% of those under age 18 and 10.6% of those age 65 or over.