The village of Coal Valley is located in both Rock Island County and Henry County in the U.S. state of Illinois. The population was 3,743 at the 2010 census, up from 3,606 in 2000. It is mostly residential, housing families who work in or out of the greater Quad Cities Area and is considered a suburb. The students of the Rock Island County part of Coal Valley attend the Moline School District number 40, and in the Henry County portion, Orion Community Unit School District 223Oakwood Country Club, located in Coal Valley, was host of the Hardee's Golf Classic from 1986 through 1994 The tournament was later renamed to "John Deere Classic" once sponsorship was taken over by Deere & Company. The tournament is now hosted at the TPC at Deere Run course in Silvis, Illinois.