Coyne Center is a census-designated place (CDP) in Rock Island County, Illinois, United States.

[3] According to the United States Census Bureau, the CDP has a total area of 1.8 square miles (4.7 km2), all land.

At the 2000 census there were 906 people, 352 households, and 290 families living in the CDP.

There were 356 housing units at an average density of 198.6 per square mile (76.7/km2).

[5] Of the 352 households 28.1% had children under the age of 18 living with them, 71.3% were married couples living together, 6.8% had a female householder with no husband present, and 17.6% were non-families.