Carbon Cliff is a village in Rock Island County, Illinois, United States. The population was 1,689 at the 2000 census. It lies in the south part of Hampton Township.
Carbon Cliff is located at 41°29′55″N 90°23′46″W / 41.49861°N 90.39611°W / 41.49861; -90.39611 (41.498698, -90.396129).
According to the 2010 census, Carbon Cliff has a total area of 2.05 square miles (5.31 km), all land.
As of the census of 2000, there were 1,689 people, 683 households, and 454 families residing in the village. The population density was 827.4 people per square mile (319.7/km²). There were 723 housing units at an average density of 354.2 per square mile (136.8/km²). The racial makeup of the village was 90.70% White, 4.50% African American, 0.47% Native American, 0.47% Asian, 1.18% from other races, and 2.66% from two or more races. Hispanic or Latino of any race were 5.80% of the population.
There were 683 households out of which 32.7% had children under the age of 18 living with them, 48.6% were married couples living together, 12.7% had a female householder with no husband present, and 33.5% were non-families. 26.1% of all households were made up of individuals and 7.8% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.92.
In the village, the population was spread out with 26.6% under the age of 18, 10.5% from 18 to 24, 29.1% from 25 to 44, 23.1% from 45 to 64, and 10.8% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 95.3 males. For every 100 females age 18 and over, there were 91.1 males.
The median income for a household in the village was $35,921, and the median income for a family was $41,429. Males had a median income of $33,750 versus $22,083 for females. The per capita income for the village was $16,998. About 10.2% of families and 12.0% of the population were below the poverty line, including 16.3% of those under age 18 and 0.6% of those age 65 or over.